find the value of a + b if

Find The Value Of A + B If

Answers

Answer 1

The value of the given fraction is 18.

Given is fraction, [tex]\frac{2+\sqrt{5} }{2-\sqrt{5}} +\frac{2-\sqrt{5} }{2+\sqrt{5}}[/tex], we need to show it in a+b√5 form,

So,

[tex]\frac{2+\sqrt{5} }{2-\sqrt{5}} +\frac{2-\sqrt{5} }{2+\sqrt{5}}\\\\\\= \frac{(2+\sqrt{5})^2+(2-\sqrt{5} )^2 }{(2+\sqrt{5})(2+\sqrt{5} ) } \\\\\\= \frac{4+5+4\sqrt{5}+4+5-4\sqrt{5} }{2^2-\sqrt{5}^2 } \\\\\\= 18[/tex]

Hence the value of the given fraction is 18.

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Related Questions

Scott equipment produces high-quality soccer balls if the fixed cost per ball is three dollars when the company produces $15,000 what is the fixed cost per ball went to produce 22,500 boss assume that both volumes are in the same relevant

Answers

The fixed cost per ball went to $4.5 when the company produce 22,500.

what is the fixed cost per ball went to produce?

fixed cost per ball is three dollars when the company produces 15,000

fixed cost per ball went x to produce 22,500

So,

3 : 15000 = x : 22,500

3/15,000 = x/22,0/500

cross product

3 × 22,500 = 15,000 × x

67,500 = 15,000x

divide both sides by 15,000

x = 67,500 /15,000

x = 4.5

Therefore, the fixed cost per ball to produce 22,500 is $4.5

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If the distance from 3rd base to home plate is 60 feet, and the average speed of a pitch is 40mph, how many seconds would you have to get to home from 3rd before the ball reaches the catcher?

Answers

You would need to reach home plate in 1.02 seconds before the ball reaches the catcher.

we need to convert the speed from mph to feet per second, since the distance is given in feet.

40 mph = 58.7 feet per second (rounded to one decimal place)

To calculate the time it takes to get from 3rd base to home plate, we can use the formula:

time = distance / speed

Plugging in the given values, we get:

time = 60 feet / 58.7 feet per second

time = 1.02 seconds

Therefore, you would need to reach home plate in 1.02 seconds before the ball reaches the catcher.

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Martha is saving money to buy a new computer that costs $1800. She received $200 for her birthday and has a job where she makes $150 each week.

a) Make a table and a graph for this situation.

b) Explain how you can use the table or graph to predict how many weeks it will take Martha to earn enough money to pay for the new computer.

c) Explain how you can tell from both the table and the graph whether this is an example of linear or non-linear growth.

Answers

a) A table and a graph for this situation is shown in the image below.

b) You can use the table or graph to predict how many weeks it will take Martha to earn enough money to pay for the new computer by comparing the week when her savings are both equal.

c) Since the x-value and y-value in both the table and the graph increase simultaneously, it is an example of linear growth.

How to complete the table and graph the function?

In this scenario, the variable x would represent the number of weeks while the variable y would represent the total amount of savings. Since Martha received $200 for her birthday and makes $150 each week, a linear equation in slope-intercept form that models the situation is given by;

y = mx + c

y = 150x + 200

Next, we would use an online graphing calculator to make a table and a graph for this situation as shown in the image attached below.

Part b.

The table and the graph both have the total amount of savings (y) equal to $1,850 when x is equal to 11 weeks. This ultimately implies that, it would take Martha between 11 weeks to save enough money to buy this new computer.

Part c.

By critically observing the table and the graph, we can logically deduce that there is a linear relationship between the variables because both the x-value and y-value increase simultaneously.

Therefore, this is an example of a linear growth.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

solve (x+5)/(x+8)=1+(6)/(x+1)

Answers

Answer:

  x = -5 2/3

Step-by-step explanation:

You want the solution to the rational equation ...

  (x+5)/(x+8)=1+(6)/(x+1)

F(x) = 0

Casting this into the form f(x) = 0, we have ...

  [tex]\dfrac{x+5}{x+8}=1+\dfrac{6}{x+1}\\\\\\1-\dfrac{3}{x+8}=1+\dfrac{6}{x+1}\\\\\\\dfrac{6}{x+1}+\dfrac{3}{x+8}=0\\\\\\\dfrac{3(2(x+8)+(x+1))}{(x+1)(x+8)}=0\\\\\\3x+17=0\qquad\text{the numerator is zero when the fraction is zero}\\\\\\\boxed{x=-\dfrac{17}{3}}[/tex]

__

Additional comment

The attachment shows the left side and right side expressions are equal when x = -17/3 = -5 2/3.

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the equation of a straight line L1 is given as 3x plus 2y is equal to 12. Another line L2 is perpendicular to L1 at (2,9).

(a) Find the equation of L2 in the fom y is equal to mx plus c where m and c are constants
(b) Another line L3 is parallel to L1 and passes through point (-4,-1). Find
(i) The equation of L2 in the form ax plus by is equal to c where m and c are intergers
(ii) The x and y intercepts of L3
(iii) The point of intersception between L2 and L3

Answers

The equation of L2 is y = 2x/3 + 23/3.

The equation of L3 is y = -3x/2 - 7.

The equation of L2 in standard form is 2x/3 - y = -23/3.

The x and y intercepts of L3 are (-4.667, 0) and (0, -7) respectively.

The point of intersection between L2 and L3 is (-6.769, 3.154).

What is the slope-intercept form?

In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;

y = mx + c

Where:

m represent the slope or rate of change.x and y are the points.c represent the y-intercept or initial value.

Based on the information provided about line 1 (L1) and line 2 (L2), we have the following equation;

Equation of line 1 (L1): 3x + 2y = 12

y = -3x/2 + 12

Since line L2 is perpendicular to L1 at (2, 9) and a slope of 2/3, the equation of L2 can be calculated as follows;

y - y₁ = m(x - x₁)

y - 9 = 2/3(x - 2)

y = 2x/3 + 23/3

Since L3 is parallel to L1 and passes through point (-4, -1), the equation of L2 can be calculated as follows;

y - y₁ = m(x - x₁)

y + 1 = -3/2(x + 4)

y = -3x/2 - 6 - 1

y = -3x/2 - 7

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Match the given slope (m) and y-intercept (b) with the equation of the line in slope-intercept form.

Answers

The general equation is y=mx+b

where m is the slope and b is the y intercept.

So substitute the m and the b for the equation.

m=2, b = 5 : y = 2x+5

m=3 b = 5: y = 3x + 5

m = 5 b = 4: y = 5x + 4

Substitute m and b for the question

Martin a une table ronde de 1 ,10m de diamètre il peut ajouter jusqu'à 5 rallonge de 40 cm chacune pour son repas d'anniversaire 10 personne seront présentes autour de cette table En comptant 60 cm par personne quel est le nombre minimal de rallonge qu'il doit installé

Answers

La circonférence de la table est égale à πd où d est le diamètre de la table. Donc la circonférence de la table est :

C = π x 1,10 m ≈ 3,46 m

Sachant que chaque rallonge mesure 40 cm (soit 0,4 m), le nombre minimal de rallonges que Martin doit installer est :

(nombre de personnes x largeur par personne - diamètre de la table) / longueur d'une rallonge

= (10 x 0,60 m - 1,10 m) / 0,40 m

= (6 m - 1,10 m) / 0,40 m

= 14,75

Comme il ne peut pas installer une demi-rallonge, il doit donc installer au moins 15 rallonges pour que tout le monde puisse s'asseoir confortablement autour de la table.

Supermarkets Agreement 2012 Adult Rate The normal weekly pay for an adult aged 21 and over is $565.90 Junior Rates The wage rates for a junior employee are based on a percentage of the adult rate.


How many people aged 16 and under 17 years can be employed for the same cost as one adult employee?

Answers

Based on the Supermarkets Agreement 2012, the normal weekly pay for an adult aged 21 and over is $565.90.

The wage rates for a junior employee are based on a percentage of the adult rate, but the exact percentage is not provided. Therefore, it is impossible to determine how many people aged 16 and under 17 years can be employed for the same cost as one adult employee without knowing the specific percentage and calculating the wages accordingly  Based on the Supermarkets Agreement 2012, the normal weekly pay for an adult aged 21 and over is $565.90. To determine how many people aged 16 and under 17 years can be employed for the same cost as one adult employee, we need to know the percentage of the adult rate for junior employees. Once we have that information, we can calculate the number of junior employees that can be employed for the same cost as one adult employee.

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please help me with my geometry i cant fail this class or i’ll have to move out of my parents house :(

Answers

Applying the tangent and the circle theorems, we have:

22. x ≈ 9.4;   23. Perimeter of triangle GHI = 168 units

24. m<NSR = 110°;    25. x = 10

How to Find the Missing Measures Using Circle and Tangent Theorems?

22. Based on the tangent theorem, the triangle is a right triangle since the line is tangent to the radius of the circle. Therefore, based on the Pythagorean theorem, we have:

x = √[(7.4 + 4.6)² - 7.4²]

x ≈ 9.4

23. JH and HK are tangents, therefore they are equal. Thus:

7x + 4 = 13x - 20

7x - 13x = -4 - 20

-6x = -24

x = 4

Perimeter = GI + GJ + JH + HK + KI

GI = 52

HK = JH = 7x + 4 = 7(4) + 4 = 32

KI = 15

GJ = 52 - 15 = 37

Perimeter of triangle GHI = 52 + 37 + 32 + 32 + 15 = 168 units

24. Based on the angle of intersecting chords theorem, we have:

m<NSR = 1/2(170 + 50)

m<NSR = 110°

25. Based on the inscribed angle theorem, we have:

2(4x - 5) + 290 = 360

Solve for x:

8x - 10 + 290 = 360

8x = 360 - 280

8x = 80

x = 10

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Find the derivative


guys can you please help me thank you sm

Answers

The derivative of [tex]f(x) = \sinh{(7e^x + 2)}[/tex] is given as follows:

B. [tex]7e^x\cosh{(7e^x + 2)}[/tex]

How to obtain the derivative?

The function in this problem is given as follows:

[tex]f(x) = \sinh{(7e^x + 2)}[/tex]

This function is a composite function, hence we use the chain rule for derivatives, which state that:

If f(x) = f(g(x)) then f'(x) = g'(x)f'(g(x)).

The inner and outer functions are given as follows:

Inner function [tex]g(x) = 7e^x + 2[/tex].The outer function is given as follows: sinh(x).

The derivative of the hyperbolic sine is given as follows:

cosh(x).

(derivative of the outer function).

The derivative of the exponential is given as follows:

[tex](7e^x + 2)^{\prime} = 7e^x[/tex]

(derivative of the inner function).

Hence the derivative of the function is given as follows:

[tex]7e^x\cosh{(7e^x + 2)}[/tex]

(application of the chain rule).

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Triangle ABC is reflected across the line y=-x and rotated 90 degrees clockwise, draw the resulting image given the above transformation.

Answers

The resulting image of Triangle ABC after reflecting it across the line y=-x and rotating it 90 degrees clockwise is Triangle A''B''C'' with vertices at (2, 3), (1, 4), and (5, 1).

To find the resulting image of Triangle ABC after reflecting it across the line y=-x and rotating it 90 degrees clockwise, we can follow these steps:
1. Draw Triangle ABC and the line y=-x on a coordinate plane.
2. Reflect Triangle ABC across the line y=-x to get its image, Triangle A'B'C'.
3. Draw the image Triangle A'B'C' on the coordinate plane.
4. Rotate Triangle A'B'C' 90 degrees clockwise around the origin to get its final image.
5. Draw the final image of Triangle ABC, which is Triangle A''B''C''.
To find the coordinates of the image points, we can use the transformation rules for reflections and rotations.
First, let's find the image points after reflecting Triangle ABC across the line y=-x:
- The point A(-2, 3) is reflected to the point A'(-3, 2) by swapping the x and y coordinates and changing their signs.
- The point B(4, 1) is reflected to the point B'(-1, -4) by swapping the x and y coordinates and changing their signs.
- The point C(1, 5) is reflected to the point C'(-5, -1) by swapping the x and y coordinates and changing their signs.
Now, let's find the image points after rotating Triangle A'B'C' 90 degrees clockwise around the origin:
- To rotate a point (x, y) 90 degrees clockwise around the origin, we can use the formulas (-y, x).
- Applying this formula to each image point, we get:
 - A''(2, 3)
 - B''(1, 4)
 - C''(5, 1)
Therefore, the resulting image of Triangle ABC after reflecting it across the line y=-x and rotating it 90 degrees clockwise is Triangle A''B''C'' with vertices at (2, 3), (1, 4), and (5, 1).

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Find the smallest angle of ASTU. Assume that b is a
positive number.

Answers

The smallest angle that is in the triangle STU is 9 degrees.

How do we solve a triangle?

A triangle can be solved by using information provided to determine the triangle's unknown side lengths and angles. Depending on the information at hand, a triangle can be solved in a variety of ways as we see here.

To find the side u

[tex]u^2 = (41b)^2 + (44b)^2 - 2(41b * 44b)Cos 128\\u^2 = 1681b^2 + 1936b^2 - 3608b^2Cos 128\\u^2 = 3617b^2 - 2221b^2\\u^2 = 1396b^2[/tex]

u = 37b

Then Using the sine rule;

a/Sin A = b/Sin B

37b/Sin 128 = 41b/SinB

B = sin-1 (41b * Sin 128/37b)

B = 61 degrees

Then;

C = 180 - (128 + 61)

C = 9 degrees

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In 2005 an area vocational school had an enrollment of 325 men and 123 women. In 2006 there were 149 women. what was the percent increase of women students. The answer should be rounded to the nearest whole percent

Answers

The nearest Whole percent, the percent increase of women students is approximately 21%.

The percent increase of women students, we need to compare the number of women students in 2005 and 2006.

In 2005, the number of women students was 123.

In 2006, the number of women students was 149.

To find the increase, we subtract the initial value (2005) from the final value (2006):

Increase = Final Value - Initial Value

Increase = 149 - 123

Increase = 26

Next, we need to calculate the percent increase. The percent increase is given by the formula:

Percent Increase = (Increase / Initial Value) * 100

Plugging in the values:

Percent Increase = (26 / 123) * 100

Calculating the percent increase:

Percent Increase ≈ 21.14%

Rounding to the nearest whole percent, the percent increase of women students is approximately 21%.

Therefore, the answer is 21%.

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2.3
QUESTION 2
2.1 Given: T-n²-10n-30
2.2
2.1.1 Which term is the minimum?
(2)
2.1.2 Determine the value of the minimum term?
(2)
A geometric sequence consists of only positive terms. If the 5th term is divided
by the 3rd term, the answer is 4. The 4th term is equal to 16.
Determine:
2.2.1 the first term and the common ratio
2.2.2 the sum of the first 18 terms of the sequence
Determine the value of x if:
108/2) 520
n=1
(5)

Answers

There is not enough information to answer the first question.

For the second question, first term = 2, common ratio = 2

What is a geometric sequence?

A geometric sequence is a set of numbers where each term following the first is obtained by multiplying the term before it by a fixed quantity, called the common ratio. In other terms, a geometric sequence is one in which every term's ratio to the term before it is constant.

We know that;

T5/T3 = 4

T5 =[tex]ar^4[/tex]

T3 = [tex]ar^2[/tex]

Then;

4 = [tex]ar^4/ar^2[/tex]

4 =[tex]r^2[/tex]

r= 2

Again we have that;

T4 = 16

T4 =[tex]ar^3[/tex]

16 = [tex]a(2)^3[/tex]

a = 2

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Need help please guys

Answers

The subtraction of the two matrix is   [31    6     12    -14     57 ]

                                                               [-19  -27  -18     18     27 ]

                                                               [ 47    14     -1    -40     9 ]

                                                               [10     12    -19    -15   -58]

                                                               [-14   -23    10     4       19]

What is the matrix subtraction?

The subtraction of the two matrix is calculated as follows;

The result to 4 multiplied by D is calculated as;

4[D] = [28   -24    12    -32     -36]

        [8      -36   -24     24      36]

        [32     8      20     -40     -12]

        [40   -12      -16    12     - 28]

        [4      -8       16     -20     -8 ]

The result to 3 multiplied by B is calculated as;

3[B] = [-3    -30  -24   -18     21]

        [27    -9    -6      6       9]

        [-15    -6    21     0      -21]

        [30    -24   3    27      30]

        [18     15     6   -24     -27]

The subtraction of the two matrix is calculated as follows;

4[D] - 3[B] =  [31    6     12    -14     57]

                   [-19  -27  -18     18     27 ]

                   [ 47    14     -1    -40     9 ]

                   [10     12    -19    -15   -58]

                   [-14   -23    10     4      19]

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i am a number between 17 and 25 i am a multiple of 3..... 6 is not a factor of mine

Answers

The answer would be 21
The number that satisfies these conditions is 21.

Johnny bought a variety of fruit to bring to a party. Johnny randomly selected a
piece of fruit from the bag.
What is the probability that Johnny chooses an apple or a pear?
Determine the correct answer for each box. Not all answers will be used.
11
• 24 bananas
.
• 15 apples
• 11 pears
.
13
15
Box A
Box B
24
25
50

Answers

If bought a variety of fruits to bring to a party, the probability that Johnny chooses an apple or a pear after making a random selection from the bag is 0.066 or 6.6%.

What is the probability?

The probability that Johnny chooses an apple or a pearl is the chance that either an apple or a pearl is chosen from the 50 pieces of fruits, which is determined by the multiplication of the two probabilities.

Probability refers to the likelihood of achieving an expected outcome or result amid the possibility of many outcomes.

Fruits      Units

Bananas   24

Apples      15

Pear           11

Total        50

The Probability of choosing a banana = 0.48 (24 ÷ 50)

The chance of choosing an apple = 0.3 (15 ÷ 50)

The likelihood of choosing a pear = 0.22(11 ÷ 50)

The probability of choosing an apple or a pear = 0.066 (0.3 x 0.22)

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450 cm into m and cm

Answers

Answer:

450 cm in meter is 4.5 meters

Step-by-step explanation:

450cm = 4.5m

1. What is the theoretical probability that the family has two dogs or two cats?
2. Describe how to use two different coins to simulate which two pets the family has.
3. Flip both coins 50 times and record your data in a table like the one below.

Result Frequency
Heads, Heads
Heads, Tails
Tails, Heads
Tails, Tails
Total 50

1. Based on your data, what is the experimental probability that the family has two dogs or two cats?
2. If the family has three pets, what is the theoretical probability that they have three dogs or three cats?
3. How could you change the simulation to generate data for three pets?

Answers

The theoretical probability of having three dogs or three cats is p^3 + q^3.

The theoretical probability of the family having two dogs or two cats depends on the specific probability of each event. Let's assume that the probability of having a dog is 0.5 and the probability of having a cat is also 0.5 (which is a simplification). In this case, the probability of having two dogs is 0.5 x 0.5 = 0.25, and the probability of having two cats is also 0.5 x 0.5 = 0.25. Therefore, the theoretical probability of the family having two dogs or two cats is 0.25 + 0.25 = 0.5 or 50%.

To simulate which two pets the family has using two different coins, we can assign one pet to each coin face (e.g., heads for dog and tails for cat). Then, we can flip both coins and record the outcome to determine which pets the family has. For example, if the first coin shows heads and the second coin shows tails, the family has one dog and one cat.

After flipping both coins 50 times and recording the outcomes in a table, we can calculate the experimental probability of the family having two dogs or two cats. Let's assume that we observed 12 occurrences of two dogs, 10 occurrences of two cats, and 28 occurrences of other outcomes (e.g., one dog and one cat). The experimental probability of the family having two dogs or two cats is (12 + 10) / 50 = 0.44 or 44%.

If the family has three pets, the theoretical probability of having three dogs or three cats can be calculated using a similar approach. Let's assume that the probability of having a dog is p and the probability of having a cat is q (where p + q = 1). Then, the probability of having three dogs is p x p x p = p^3, and the probability of having three cats is q x q x q = q^3. Therefore, the theoretical probability of having three dogs or three cats is p^3 + q^3.

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What is the place value of 2 in 369.425

Answers

Answer:

The two is in the hundredths place

Step-by-step explanation:

369.425

hundreds  tens ones. tenths hundredths thousandths

3                   6      9    .   4             2                   5

The two is in the hundredths place

Answer:

The place value of 2 in 369.425 is hundredths.

The number 369.425 is a decimal number. It has a whole number part (369) and a decimal part (0.425). The decimal part is divided into tenths, hundredths, thousandths, and so on. The 2 is in the hundredths place.

Step-by-step explanation:

tex]3x+4y+-23\\5x+y+-23[/tex]

Answers

The solution to the system of equations is x ≈ -4.06 and y ≈ -2.7.

It seems you have provided a system of linear equations. The system can be represented as:

3x + 4y = -23

5x + y = -23

This system can be solved using various methods such as substitution, elimination, or matrix methods. Let's solve it using the method of substitution.

From the second equation, we can express y in terms of x:

y = -23 - 5x

Substituting this value of y into the first equation:

3x + 4(-23 - 5x) = -23

Simplifying the equation:

3x - 92 - 20x = -23

-17x - 92 = -23

-17x = 69

x = -69/17

x ≈ -4.06

Substituting this value of x back into the second equation to find y:

5(-4.06) + y = -23

-20.3 + y = -23

y = -23 + 20.3

y ≈ -2.7

Therefore, the solution to the system of equations is x ≈ -4.06 and y ≈ -2.7.

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​Graph the numbers on the number line.
–4 and 3

Answers

The number line with the numbers -4 and 3 graphed is given by the image presented at the end of the answer.

How to graph the numbers on the number line?

The origin point on the number line is given as follows:

0.

Hence positive numbers and negative numbers are plotted as follows:

Positive numbers are plotted to the right of zero on the number line.Positive numbers are plotted to the left of zero on the number line.

The numbers for this problem are given as follows:

-4 and 3.

Hence they are plotted as follows:

-4 is plotted four units to the left of zero on the number line.3 is plotted three units to the right of zero on the number line.

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Find the probability that the product is a multiple of 3

Answers

The probability that the product is a multiple of 3 is given as follows:

p = 7/16.

How to calculate a probability?

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

There are four numbers, hence the total number possible products are given as follows:

4² = 16.

The products that are multiples of 3 are given as follows:

1 x 3 = 3.2 x 3 = 6.3 x 1 = 3.3 x 2 = 6.3 x 3 = 9.3 x 4 = 12.4 x 3 = 12.

7 products are multiples of 16, out of the 16 products, hence the probability is given as follows:

p = 7/16.

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The yearly Avrage
4. An old furnace cost $850 per year to run. A new one costs $2,500 to buy and will save 34% annually in
energy costs to run it. In how many years will it pay for itself?

Answers

Answer:

9 years

Step-by-step explanation:
To determine the number of years it will take for the new furnace to pay for itself, we need to compare the cost of running the old furnace for that period with the cost of buying and operating the new furnace during the same time.

Let's calculate the cost of running the old furnace for one year:

Old furnace cost per year = $850

Now, let's calculate the savings in energy costs for the new furnace:

Savings in energy costs per year = 34% of $850

= 0.34 * $850

= $289

The total cost of buying and operating the new furnace for one year is:

New furnace cost per year = Cost of buying the new furnace + Savings in energy costs per year

= $2,500 + $289

= $2,789

To find the number of years it will take for the new furnace to pay for itself, we divide the cost of the new furnace by the annual savings:

Number of years to pay for itself = Cost of buying the new furnace / Annual savings

= $2,500 / $289

≈ 8.65

Since we cannot have a fraction of a year, we can round up to the nearest whole number. Therefore, it will take approximately 9 years for the new furnace to pay for itself.

Consider this unfinished equation.
4 + 9 = ____ + 3
What number should go in the blank space?
The number I should go in the blank space.

Answers

Answer: 4+9=10+3

Step-by-step explanation:

We can subtract the number, 4 to get 3. The extra one from the 4 would go to the nine.

The answer is 10 because 4+9 is 13 and then you need to think of what makes 13 so that’s 10+3

Pls help me find the area!!!

Answers

The area of this figure is 318

Answer:

Step-by-step explanation:

11+6+21+18=56 ft

squared

Sonya drives 170 miles at a certain speed. After stopping at a rest stop, she drives an additional 320 miles at a speed 5 mph slower than before the stop. If she drove 3 hours longer after the stop than before the stop, what was her speed before the stop?

Answers

Answer:

45.75 mph

Step-by-step explanation:

Let's call Sonya's speed before the rest stop "x" (in miles per hour). Then, we know that her speed after the rest stop was "x-5" miles per hour.

We can use the formula: distance = speed x time, to set up two equations based on the given information:

Equation 1: 170 = x * t1 (where t1 is the time Sonya drove before the rest stop)

Equation 2: 320 = (x-5) * (t1+3) (where t1+3 is the time Sonya drove after the rest stop)

We can solve for t1 in Equation 1 by dividing both sides by x:

t1 = 170/x

Now we can substitute this expression for t1 into Equation 2 and simplify:

320 = (x-5) * (170/x + 3)

320 = 170(x-5)/x + 3(x-5)

Multiplying both sides by x gives:

320x = 170(x-5) + 3x(x-5)

320x = 170x - 850 + 3x^2 - 15x

Simplifying and rearranging terms gives a quadratic equation:

3x^2 - 165x + 850 = 0

We can solve for x using the quadratic formula:

x = [165 ± sqrt(165^2 - 4(3)(850))] / (2*3)

x = [165 ± sqrt(27225 - 10200)] / 6

x = [165 ± sqrt(17025)] / 6

x = [165 ± 130.5] / 6

x = 45.75 or x = 9.25

We can ignore the solution x = 9.25 since it doesn't make sense in the context of the problem (Sonya's speed cannot be negative). Therefore, Sonya's speed before the rest stop was 45.75 miles per hour

HELP PLEASE! Find the base angles of the figure below.
A) 130°
B) 65°
C) 25°
D) 50°

Answers

The base angles are of 25 degree.

Given that

Two sides are equal

And one angle of triangle = 130 degree

We know that,

Triangles are three-sided polygons that can be categorized as equilateral, isosceles, or scalene depending on how long their sides are.

And triangles with two equal sides are known as isosceles triangles and

it has two equal angle also.

Therefore,

let the angle is x degree

And we know that sum of interior angles of triangle is 180 degree.

Then,

x + x + 130 = 180

              2x = 50

                x = 25

Hence the required angles are of 25 degree.

Learn more about the triangle visit;

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Camille took a friend for a birthday dinner. The total bill for dinner was $38.56 (including tax and a tip). If Camille paid a 22.1% tip, what was her bill before adding the tip?

(Round your answer to the nearest cent.)

Answers

Answer: $31.58

Step-by-step explanation:

Let us say that x is equal to the bill's amount before adding the tip. Please note that a percent divided by 100 becomes a decimal, so 22.1% / 100 = 0.221. We will write an equation to represent this situation.

         x + 0.221x = $38.56

Next, we will solve by combining like terms.

        1.221x = $38.56

Lastly, we will divide both sides of the equation by 1.221.

        x = $31.58

      Camille's bill was $31.58 before adding a 22.1% tip.

Power Company signed a 3-year lease for equipment and leased the equipment on September 1, 2022. The lease agreement calls for Power to make monthly lease payments of $8,000, assuming a 8% borrowing rate. The first lease payment begins September 30, 2022.

Required:
A.
Calculate the present value of the lease payments. Please explain how you calculated the present value and the
inputs used and why.
B.
Record the journal entry for the lease on September 1, 2024.

Answers

A) The present value of the lease payments can be computed as $255,294.44, using the lease period, borrowing rate, and the monthly lease payments in the online finance calculator as parameters.

B) The journal entry for the lease on September 1, 2024 is as follows:

Journal Entry:

September 1, 2024:

Debit Lease Expense $8,000

Credit Lease Payable $8,000

(To record the lease liability, payable on September 30, 2024.)

How the present value is determined:

The present value of the lease payments can be computed using an online finance calculator as follows:

A) Present Value of the Lease Payments:

N (# of periods) = 36 months (3 years x 12)

I/Y (Interest per year) = 8%

PMT (Periodic Payment) = $8,000

FV (Future Value) = $0

Results:

Present Value (PV) = $255,294.44

Sum of all periodic payments = $288,000.00

Total Interest = $32,705.56

B) Transaction Analysis:

September 1, 2024:

Lease Expense $8,000 Lease Payable $8,000

Learn more about the present value of lease payments at https://brainly.com/question/22785840.

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