Given the following function, find f(- 5), f(0), and f(5).

f(x) = - 2x + 2

f(- 5) = ?

Answer:

Rick will have in interest 646.00 for a total of 38646. Charles will have 2052.00 interest for a total of 40052. Charles has a total of 1406.00 more than Rick.

According to the linear equation, He takes 9 weeks will it take to reach his goal.

According to the statement

We have to find that the weeks will it take to reach his goal.

So, For this purpose, we know that the

The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line.

From the given information:

The job pays $12 per hour with a $250 signing bonus. John hopes to make $2950 before the fall so he uses the following equation 12t+ 250 = 2950

Then

The given equation is:

12t+ 250 = 2950

12t = 2950 -250

12t = 2700

t = 2700/12

t = 225 hours.

And

If John works 25 hours a week

Then

Number of weeks he takes = 225 /25

Number of weeks he takes = 9

So, According to the linear equation, He takes 9 weeks will it take to reach his goal.

Learn more about linear equation here

https://brainly.com/question/4074386

#SPJ9

The examples of error and trial method and quadratic system are shows below.

Number problems and try to solve either trial and error or a Quadratic System

Trial and error is a fundamental method of Problem solving. It is characterized by repeated, varied attempts which are continued until success, or until the agent stops trying. Until getting the right answer the problem is repeating through various steps. This type of problem solving is called trial and error method.

A linear quadratic system is a system containing one linear equation and one quadratic equation (which is generally one straight line and one parabola). A simple linear system contains two linear equations (which is two straight lines).

ERROR AND TRIAL METHOD

Question: 44 people live in eight houses (3 on each side of the Albert Square). Each house has a different number of people living in it. Each line of three houses has 15 people living in it. How many people live in each house?

Solution: Simplifying, we have to get 4 sets of numbers, each of which add up to 15. So start guessing.

The average number of people in a house is 44/8 is roughly 4.5. So what numbers should we take? 2, 3, 4, 5, 6, 7, 8, 9. Now, we should also have an average close to 5 for each set. Let's start:

Set 1: 3, 5, 7

Set 3: 2, 4, 9

Now, the other two sets will have an overlap. So let's guess the overlaps:

Set 2: Overlaps are 2 and 7. So the third number will be 6. Because we have not used 6 yet.

Set 4: Overlaps are 3 and 9. Then the third number ends up to 3 again. Wrong guess! So we need to try again. Overlaps are 3 and 4. In this case third number works out to be 8, which we have not used. So here is the answer

The first row: 2,6,7.

Second row: 4,8,3.

First column : 2,9,4.

Second column: 7,5,3.

QUADRATIC SYSTEM:

Find the points of intersection between the line y=2x+1  and the parabola y=x2−2.

Substitute 2x+1  for y in y=x2−2.

2x+1=x2−2

Write the quadratic equation in standard form.

2x+1−2x−1=x2−2−2x−10=x2−2x−3

Use the quadratic formula to find the roots of the quadratic equation.

Here, a=1,  b=−2,  and c=−3.

x=−(−2) ± (−2)2 − 4(1)(−3)√2(1)=2 ± 4 + 12√2=2 ± 42=3,  −1

Substitute the x-values in the linear equation to find the corresponding y-values.

x=3⇒y=2(3)+1

 =7x=−1⇒y=2(−1)+1      =−1

Therefore, the points of intersection are (3,7)  and (−1,−1).

Graph the parabola and the straight line on a coordinate plane.

To learn more about trial and error method visit:

brainly.com/question/4123314

#SPJ1

Answer:

you need to show the options at the bottom

Step-by-step explanation:

The value of the height is 17

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.

Given:

Volume, V = 1/3πr²h

Volume= 1138.8,

π=3.14

r= 8

h= 3V/πr²

h= 3* (1138.8)/3.14* 8*8

h=3416.4/200.96

h=17

Hence, the value of height is 17

Learn more about expression here:

https://brainly.com/question/24242989

#SPJ1

Answer:

54.7

Step-by-step explanation:

19% of 288

0.19 * 288 = 54.72

54.72 = 54.7

Answer:

Estimated 60 and rounded 55 and normal 54.72.

Step-by-step explanation:

To get the estimated answer, first convert the percentage to a decimal: 19% = 0.19. Second, you have to round the 2 numbers so they are easier to multiply: 0.19 = 0.20 and 288 = 300. Now that you have the 2 rounded numbers, you can multiply them to get the estimated answer: 0.20 x 300 = 60 so 60 is your estimated answer.

To get the rounded answer, you first have to multiply the 2 given numbers, the whole number and the percentage (as a decimal), together: 0.19 = 54.72. Now that you have the answer to the multiplication problem, you can round the answer to the nearest whole number: 54.72 = 55 so the rounded answer is 55.

To get the exact answer, all you have to do is multiply the percentage (as a decimal), by the whole number to get the answer: 0.19 x 288 is 54.72 so the exact answer is 54.72.

I hope I helped and please mark this answer as brainliest if so!

From the given coordinates, we can say that the Midpoint of AC = a/2, b/2 and the Midpoint of BD = a/2, b/2

Since the midpoints of the diagonals have the same coordinates, then we can conclude that AC and BD bisect each other.

From the given image, we see that the coordinates of parallelogram ABCD are;

A (0, 0)

B (a, 0)

C (a , b)

D (0, b)

Thus;

1) The coordinates of the midpoint of AC are;

Midpoint of AC = (0 + a)/2, (0 + b)/2

Midpoint of AC = a/2, b/2

2) The coordinates of the midpoint of BD are;

Midpoint of BD = (a + 0)/2, (0 + b)/2

Midpoint of BD = a/2, b/2

Since the midpoints of the diagonals have the same coordinates, then we can conclude that AC and BD bisect each other.

Read more about Coordinate of Midpoint at; https://brainly.com/question/5566419

#SPJ1

The inequalities could be used to determine the amount you have left to spend will be 60 - 15.

From the information, the person have a gift card for your favorite clothing store for the amount of $60 and found a shirt you want to buy that costs $15.

The inequalities could be used to determine the amount you have left to spend will be:

= Total amount - Shirt

= 60 - 15

Therefore, inequalities could be used to determine the amount you have left to spend will be 60 - 15.

Learn more about inequalities on:

brainly.com/question/11613554

#SPJ1

Answer:

(0, 3)

[tex]x=0\\y=3[/tex]

Step-by-step explanation:

You can rewrite the first equation as [tex]y=3-x[/tex]. Then, you can substitute into the second equation as follows:

[tex]x-3(3-x)=-9\\x-9+3x=-9\\4x=0\\x=0\\[/tex]

Now, we can substitute this value into the first equation.

[tex]x+y=3\\0+y=3\\y=3[/tex]

Writing this in the form of [tex](x, y)[/tex] will yield [tex](0, 3)[/tex].

Remember when setting this out, align your equal signs and give good mathematical reasoning as shown above.

Hope this helps you!

The value of x, at which the second function's output exceeds  the first function's output is

[tex]$x \in\left(-\infty, \frac{1-\sqrt{29}}{2}\right) \cup\left(\frac{1+\sqrt{29}}{2}, \infty\right)$[/tex]

This is further explained below.

Generally, The second function's output exceeds (get bigger than) the first function's output for

[tex]$x \in\left(-\infty, \frac{1-\sqrt{29}}{2}\right) \cup\left(\frac{1+\sqrt{20}}{2}, \infty\right)$[/tex]

Given the functions f(x)=x+7 and f(x)=x^2

To know when to exceed, need to equate both functions.

[tex]$$\begin{aligned}&\Rightarrow x^2=x+7 \\&\Rightarrow x^2-x-7=0 \\&\mathrm{x}=\frac{-b+\sqrt{D}}{2 a} \text { and } \frac{-b-\sqrt{D}}{2 a} \\&\Rightarrow \mathrm{x}=\frac{1-\sqrt{29}}{2}, \frac{1+\sqrt{29}}{2}\end{aligned}$$[/tex]

f(x)=x^2 drops from infinity to zero and grows from zero to infinity; it cuts the graph of x+7 twice, and for each of those instances, it results in the same shape.

[tex]x \in\left(-\infty, \frac{1-\sqrt{29}}{2}\right) \cup\left(\frac{1+\sqrt{29}}{2}, \infty\right) f(x)=x^2$[/tex]  is greater than f(x)=x+7

As a result, the output of the second function surpasses (acquires a greater size than) the output of the first function for

[tex]$x \in\left(-\infty, \frac{1-\sqrt{29}}{2}\right) \cup\left(\frac{1+\sqrt{29}}{2}, \infty\right)$[/tex]

Read more about function

brainly.com/question/12431044

#SPJ1

Its between B and c but i reckon C

[tex] - 4w - 2 = |6w + 20| [/tex]

[tex] - 4w - 2 = |6w + 20| \\ - 4w - 2 = 6w + 20 \\ - 2 - 20 = 6w + 4w \\ - 22 = 10w \\ \frac{ - 22}{10} = w \\ \frac{ - { \cancel{22}}^{ \: \: 11} }{ \cancel{10}^{ \: \: \: 5} } = w \\ \frac{ - 11}{5} = w[/tex]

[tex] - 4w - 2 = |6w + 20| \\ - 4w - 2 = | - (6w + 20)| \\ - 4w - 2 = - 6w - 20 \\ 6w - 4w = - 20 + 2 \\ 2w = - 18 \\ w = \frac{ - 18}{2} \\ w = \frac{ - \cancel{18}^{ \: \: 9} }{ \cancel2} \\ w = - 9[/tex]

Using proportions, it is found that:

a) 75% of the respondents believe the action is morally​ acceptable.

b) Supposing there are 217 million adults, 39.06 million believe that the action is morally​ wrong.

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

In item a, 75 out of 7 + 18 + 75 = 100 adults believe that the action is morally acceptable, hence the percentage is:

75/100 x 100% = 75%

75% of the respondents believe the action is morally​ acceptable.

In item b, we suppose that there are 217 million adults, hence the amount that believe the action is morally wrong is:

0.18 x 217 = 39.06.

Supposing there are 217 million adults, 39.06 million believe that the action is morally​ wrong.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

The figure with 2 lines and 2 rays is drawn and labeled and can be seen in the attached picture.

In the question, we are asked to draw and label a figure that has at least 2 lines and 2 rays.

First, we need to note three things:

Now, we are asked to make a figure with 2 lines (that is, two endless collections of points) and 2 rays (that is, a part of the line with a fixed start point, but no end point).

This can be shown in the attached figure.

In the figure, AB and CD are the two lines, and PQ and XY are the two rays.

Learn more about lines and rays at

https://brainly.com/question/14366932

#SPJ9

Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again. Then the correct option is A.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

Yana is in the school computer lab writing a paper for history class. The graph represents the number of words Yana has written after a number of minutes.

The graph is given below.

From the graph, Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again.

Then the correct option is A.

More about the function link is given below.

brainly.com/question/5245372

#SPJ9

Answer:

the answer is two because the absolute value delete the negative in result not in question

Answer:

1, 3, 13, 39

Step-by-step explanation:

because it is

Answer: 48hm

Step-by-step explanation:

48hm = 4800m

480m < 4800m

The value of the product of the two decimal numbers is 35.2772 which is closest to 36 of all the given numbers.

The outcome of multiplication or an expression that specifies factors to be multiplied is a product.

The two numbers are 11.72 and 3.01

To multiply this two decimal numbers we will use the fraction property.

11.72 can be written as  [tex]\frac{1172}{100}[/tex] and 3.01 can be written as  [tex]\frac{301}{100}[/tex]

So the product of 11.72 and 3.01 is written as

[tex]=\frac{1172}{100}\times\frac{301}{100}\\\\\\=\frac{352772}{10000}[/tex]

= 35.2772

This number in decimal can be estimated to 36 because it is closest to the given options.

Hence the product is approximately 36.

To learn more about product visit:

https://brainly.com/question/22852400

#SPJ1

Answer: $180

Step-by-step explanation:

a right triangle has three sides: the two smaller ones and the big one. the two smaller ones squared add up to the bigger one squared.

this is the pythagorean theorem, a^2 + b^2 = c^2.

in this case, it would be 9 squared + 12 squared = c squared.

81 + 144 = 225

225 is the square of 15, so the third side is 15.

now, solve for the perimeter.

the perimeter is the 3 sides added up, so 9+12+15 = 36 feet of perimeter.

each foot costs $5, so 36x5= 180.

$180 is the answer.

Answer:

144

Step-by-step explanation:

24x6

24 6 times

24 + 24 + 24 + 24 + 24 + 24 = 144

i hopw this helped

if it did pls mark brainliest!

Answer:

<

Step-by-step explanation:

Number of people called at 6 o clock using a base and exponent is 6^2

Number of people called at 8 o clock using a base and exponent is 6^3

Given data

At 4 o clock, Devon called 6 friends

At 6 o clock, each of his friends called 6 other friends

At 8'o clock, each of those friends called 6 of their friends

Let the friends Devin called at 4 o clock be represented by x

such that 6 friends will be = x + x + x + x + x + x = 6x

At 6 o clock, each of his friends called 6 other friends this means that each x called 6 friends assuming y this time, such that: y represents the number of friends called at 6 o clock by each x

each x called 6y this will lead to a total of

6y + 6y + 6y + 6y + 6y + 6y = 36y

Therefore 36 friends were called at 6 o clock which is equal to 6 * 6 = 6^2

using base and exponent we have

base = 6 and exponents = 2

Each of the 36 friends called their 6 friends again hence the total calls made is 36 * 6 = 216

using base and exponent

36 * 6 = 216

6^2 * 6^1 = 216

6^(2 + 1 ) = 216

6^3 = 216

base = 6

exponents = 3

Read more on base and exponents here: https://brainly.com/question/17640470

#SPJ1

Answer:

(i) 50 ft/s

(ii) 1750 ft

Step-by-step explanation:

(i)

The vertical speed is:

4500 ft / 90 seconds = 50 ft/s

(ii)

50 ft/s × 35 s = 1750 ft

The two fractions that will give a sum between 0.75 and 1 are 3/7 + 5/9 and the larger fraction is 5/9

We want to find two fractions using the digits 3, 5, 7 and 9 to find the one that gives a sum between 0.75 and 1.

Since it has to be a sum between 0.75 and 1, it means that the denominator must be greater than the numerator. Thus, let us try as follows;

3/5 + 7/9

Factorize out 45 to get;

¹/₄₅((3 * 9) + (7 *5))

= ¹/₄₅(27 + 35)

= ¹/₄₅(52)

This will not work because it will lead to a sum greater than 1

Let us try another one;

3/7 + 5/9

Factorize out 63 to get;

¹/₆₃((3 * 9) + (5 *7))

= ¹/₆₃(27 + 35)

= 52/63

= 0.8254

Thus, the two fractions that will give a sum between 0.75 and 1 are 3/7 + 5/9 and the larger fraction is 5/9

Read more about Addition of Fractions at; https://brainly.com/question/11562149

#SPJ1

Answer:

*HOPE THIS HELPS*

Step-by-step explanation:

Full explanation given in the picture

a) the average velocity during each time period.

(b) 0.08 cm/s is the instantaneous velocity of the particle when t = 1.

Step-by-step explanation:

Given that

                s = 5 sin(t) + 5 cos(t),

To find

                (1)[1,2]? cm/s

                (2)[1,1.1]? cm/s

                (3)[1,.101]? cm/s

                (4)[1,1.001]? cm/s

So, according to the question

a) The average velocity during each time period.

                (1)[1,2]? cm/s

                (2)[1,1.1]? cm/s

                (3)[1,.101]? cm/s

                (4)[1,1.001]? cm/s

We have the displacement equation at time t :

                s = 5 sin(t) + 5 cos(t)

Now differentiate it by t to get velocity.

               v(t) =  ds/dt

                     [tex]= \frac{d}{dt} (5sint+5cost)\\= 5(\frac{d}{dt} sint+\frac{d}{dt}cost)\\\\[/tex]

              v(t)  [tex]= 5( cost - sint)[/tex]    

velocity at t = 1,

               v(1) = 5 { cos(1)- sin(1) }    = 5( 0.99-0.017) = 5 x 0.982 = 4.91 cm/s        

velocity at t = 2,

               v(2) = 5 { cos(2)- sin(2) }    = 5( 0.999 - 0.0348)  = 4.82 cm/s  

velocity at t = 1.1,

               v(1.1) = 5 { cos(1.1)- sin(1.1) }    = 5( 0.999 - 0.0191)  = 4.90 cm/s  

velocity at t = 0.101,

          v(0.101) = 5 { cos(0.101)- sin(0.101) } = 5( 0.999 - 0.0176)  = 4.99 cm/s

velocity at t = 1.001,

         v(1.001) = 5 { cos(1.001)- sin(1.001) } = 5( 0.999 - 0.0174)  = 4.911 cm/s    

Now,

The average velocity at [1,2]

          = (4.91+4.82)/2 = 4.87 cm/s

The average velocity at [1,1.1]

          = (4.91+4.90)/2 = 4.90 cm/s

The average velocity at [1,0.101]

          = (4.91+4.99)/2 = 4.95 cm/s

The average velocity at [1,1.001]

          = (4.91+4.911)/2 = 4.91 cm/s

b) instantaneous velocity at 1s.

        instantaneous velocity[tex]= \frac{instantaneous\; displacement }{instantaneous\; time}[/tex]

                                   v(1) = [tex]\frac{s(1)-s(0)}{1-0}[/tex]

  s(1) = 5 {sin(1) + cos(1)} = 5 (0.017 + 0.999) = 5.08 cm

  s(0) = 5 {sin(0) + cos(0)} = 5 (0 + 1) = 5.0 cm

Now, putting the all values

                v(1) = (5.08 - 5.0)/1 = 0.08 cm/s

Answer:

   a) the average velocity during each time period.

  (b) 0.08 cm/s is the instantaneous velocity of the particle when t = 1.

To learn more about Differentiation, please click on the link:

https://brainly.com/question/15230915

#SPJ9

The value of the function g(-2) is -46

A function can be defined as an expression, law , rule of hypothesis that explains or compares the relationship between two variables - the dependent and the independent variable.

Given the function;

g(x) = -4x³ - x² + 2x - 2

To determine the function, g(-2)

We substitute the value of x as -2 into the function, we have;

g(-2) = -4(-2)³ - (-2)² + 2(-2) - 2

expand the bracket

g(-2) = -4(8) - 2(4) + 2(-2) - 2

expand further

g(-2) = -32 - 8 - 4 - 2

g(-2) = -46

Thus, the value of the function g(-2) is -46

Learn more about functions here:

https://brainly.com/question/2328150

#SPJ1

Answer:

Dimensions: 24, 24, 104

Total: 152 cm²

Step-by-step explanation(Triangles):

Given the triangles are equal to each other, we only need to solve one to get the other.

[tex]A = \frac{h \times b}{2} \\A = \frac{8 \times 6}{2}\\A = 24[/tex]

Therefore, the triangles' area are 24 cm.

Step-by-step explanation(Trapezoid):

Because of the height being unknown, we can define that using the side triangles. These triangles have a height of 8, so that also means the trapezoid has a height of 8. Now we can solve.

[tex]A = \frac{a+b}{2}\times h\\A = \frac{10+16}{2}\times 8\\A = 104[/tex]

Step-by-step explanation(Addition):

Finally, we add the 3 values.

[tex]24 + 24 + 104 = 152\:cm^2[/tex]

Lastly,

Hope this helps!