Answer:
Scale factor is a ratio between an object and a new object, which is said to be the same object but in a new size or form.
On a day when the speed of sound is 343 m/s you drop a rock into a well and hear it hit the bottom 3s later. How deep is the well?
Answer:
1029
Step-by-step explanation:
d=s*t
s=343m/s
t=3s
=343m/s*3s
= 1029
To manufacture an automobile requires painting, drying, and polishing. Epsilon Motor Company produces three types of cars, the Delta, the Beta, and the Sigma. Each Delta requires 11 hours for painting, 5 hours for drying, and 3 hours for polishing. A Beta requires 17 hours for painting, 8 hours for drying, and 4 hours for polishing, and a Sigma requires 4 hours for painting, 5 hours for drying, and 1 hour for polishing. If the company has 253 hours for painting, 149 hours for drying, and 63 hours for polishing per month, how many of each type of car are produced?
Step-by-step explanation:
d = number of Delta cars
b = number of Beta cars
s = number of Sigma cars
253 = 11d + 17b + 4s
149 = 5d + 8b + 5s
63 = 3d + 4b + 1s
s = 63 - 3d - 4b
149 = 5d + 8b + 5(63 - 3d - 4b) =
= 5d + 8b + 315 - 15d - 20b = -10d - 12b + 315
-166 = -10d - 12b
-83 = -5d - 6b
83 = 5d + 6b
5d = 83 - 6b
d = (83 - 6b)/5
with these 2 "identities" we are going into the 3rd equation and solve for the third variable (b), followed by solving the first 2 identities :
253 = 11((83 - 6b)/5) + 17b + 4(63 - 3((83 - 6b)/5) - 4b)
1265 = 11(83 - 6b) + 85b + 20×63 - 12(83 - 6b) - 80b
1265 = -(83 - 6b) + 5b + 1260
5 = -83 + 6b + 5b
88 = 11b
b = 8
d = (83 - 6b)/5 = (83 - 48)/5 = 35/5 = 7
s = 63 - 3d - 4b = 63 - 3×7 - 4×8 = 63 - 21 - 32 = 10
7 Delta cars
8 Beta cars
10 Sigma cars
were produced.
Suppose that 650lb of coffee are sold when the price is $4 per pound
Money earned = $162.50
Explanation:
650 / 4 – You make $4 for every pound sold
= 162.5
Which is $162.50
Question Which graph represents the inequality? 2x−3y<6
I think the answer is B, the one with a complete line and shaded to the bottom
There is no question that is the station
Answer: lol
no question that is the station? so there's no question?
ok
Step-by-step explanation:
What is the least common denominator of 1/6 and 2/3
Answer:
It is 6 since the denominator 3 can be moved to 6 by only multiplying it by 2
Given the lease terms below from a local car dealership, what is the total cash due at
signing if the dealership requires down payment, security deposit, first month's
payment and the acquisition fee at signing?
Length of lease = 24 months
MSRP of the car = $22, 750
Purchase value of the car after lease = $16, 900
Down payment = $1,800
Monthly payment = $425
Security deposit = $375
Acquisition fee = $300
The total cash due at signing if the dealership requires down payment, security deposit, first month's payment and the acquisition fee at signing is 2400 + 375 + 500 = 3275
When you buy a car, you don't make monthly payments at the beginning. Plus, you don't care how much the buyout costs when you close the lease, that's after you've had it for two years.
You must take care of the deposit, this is your good faith commitment to the rental car. In addition, you may have to pay a deposit based on your credit, and the acquisition fee is what you would pay a broker or dealer to get the car to you if you wanted it from somewhere else.
Therefore,
2400 + 375 + 500 = 3275
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please help my geo grade is so low
As m ∠ COD = 90°, then the angle COD is a right angle.
What kind of angle is the measure seen in the protractor?
According to geometry, angles are generated by semirrays with a common point. There are different kinds of angles concerning its measure:
Acute angle - Its measure is between 0° and 90°.Right angle - Its measure is 90°.Obtuse angle - Its measure is between 90° and 180°. Straight angle - Its measure is 180°.Based on all the information given by the protractor, we find that the measure of the angle AOD is:
m ∠ COD = m ∠ AOD - m ∠ AOC
If we know that m ∠ AOD = 115 ° and m ∠ AOC = 25°, then the measure of the angle COD is:
m ∠ COD = 115° - 25°
m ∠ COD = 90°
As m ∠ COD = 90°, then the angle COD is a right angle.
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7 is a factor of which number?
Are these ratios equivalent?
17 1
33 3
Answer:
no
Step-by-step explanation:
What makes a zero? Using zero to simplify algebraic expressions
It should be noted that an algebraic expression will be equal to zero when the difference is between the same expressions.
How to illustrate the information?It should be noted that an algebraic expression simply means the expression that's used to show the relationship between the variables
In this case, the should be noted that an algebraic expression will be equal to zero when the difference is between the same expressions.
An example is illustrated as:
= 2x - 2x
= 0
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Find the measurement of the angle indicated for each trapezoid.
*
Answer: m∠B=53°
Step-by-step explanation:
A property that is inherent in a trapezoid of any kind: the sum of the angles adjoining a side is equal to 180°
Hence,
(32x-1)+(14x-3)=180
32x-1+14x-3=180
46x-4=180
46x-4+4=180+4
46x=184
Divide both parts of the equation by 46:
x=4
m∠B=14x-3
m∠B=14(4)-3
m∠B=56-3
m∠B=53°
$953 is ________% of $1717
Select one:
A. 0.6
B. 55.5
C. 0.1
D. 180.2
Help me pleasseeee lelelelelele
Given (x,7) and (−1,y) find x and y such that the midpoint between these two points is (3,5)
The solution to the system of linear equations is (x, y) = (7, 3).
How to find the missing coordinates of the two ends of a line segmentHerein we find that the coordinates of the midpoint and part of the coordinates of the ends of the line segment are known. We must determine the values of the missing coordinates by the midpoint formula:
0.5 · (x, 7) + 0.5 · (-1, y) = (3, 5)
Which is equivalent to the system of linear equations:
0.5 · x - 0.5 = 3 (1)
3.5 + 0.5 · y = 5 (2)
The solution to the system of linear equations is (x, y) = (7, 3).
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How can setting your cell phone to silent while listening help you listen actively?
Answer: Turning your cell phone off or on silent can help you listen actively because you won't have the urge to look at it unless you hear a little notification.
But honestly, whose question is this, it's so random, and I think everyone can listen with their phones out, because I pay more attention when I'm doing something like on a phone or listening to music.
2x + = x + 5
Solve using a mental strategy
The required solution of the given equation is 5.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation, statement of equality between two expressions consisting of variables and/or numbers.
Given:
The given equation is
2x + = x + 5
According to given question we have
Mental Math is an exercise where we solve mathematical equations mentally without the help of a calculator.
To do the bigger or important quantities first. This gives an estimate of the value expected. Such an approach is front end or left to right multiplication.
2x = x + 5
Substract x from both sides we get,
x=5
Therefore, the required solution of the given equation is 5.
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Express the following inequality using interval notation.
1/2x−1>7
The inequality using interval notation is (18, ∝)
How to express the inequality using interval notation?The inequality is given as
1/2x − 1 > 7
Add 1 to both sides of the inequality
So, we have
1/2x − 1 + 1 > 7 + 1
Evaluate the like terms
So, we have
1/2x > 8
Multiply through by 2
So, we have
x > 16
Using interval notation, we have
(18, ∝)
Hence, the inequality using interval notation is (18, ∝)
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The mass of a paperclip is 6.0 × 10−4 mg. If a box of paperclips has 7.23 × 104 paperclips, determine the total mass of the paperclips in the box. Write the final answer in scientific notation with the correct number of significant digits.
4.338 × 101 mg
4.3 × 101 mg
4 × 101 mg
3.62 × 100 mg
Taking into account the definition of Scientific notation, the correct answer is the first option: the total mass of the paperclips in the box is 4.338×10¹ mg.
Scientific notationScientific notation is a quick way to represent a number using powers of base 10.
The numbers are written as a product:
a×10ⁿ
where:
a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.n is a whole number, which is called an exponent or an order of magnitude. Represents the number of times the point decimal is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.Total mass of the paperclips
In this case, you know that:
The mass of a paperclip is 6.0×10⁻⁴ mg. A box of paperclips has 7.23×10⁴ paperclips.To know the total mass of the paperclips in the box, you must multiply the number of paperclips in the box by the mass of each paperclip:
7.23×10⁴×6.0×10⁻⁴
To multiply numbers in scientific notation, you multiply the numbers that are not powers of 10 (the numbers previously called "a") and add the exponents of 10.
(7.23×6.0)×10⁴⁻⁴= 43.38×10⁰= 4.338×10¹ mg
Finally, the correct answer is the first option: the total mass of the paperclips in the box is 4.338×10¹ mg.
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If p=7 and q=1, what is 4pq squared + (-7)pq squared +5p?
For the exponents, I don’t know how to distribute the squared/power of two within each term.
Answer:
14
Step-by-step explanation:
q² = 1
and 1² = 1 * 1 = 1
4pq² + (-7)pq² +5p
Evaluate for p=7,q=1
(4)(7)(1²)+((−7)(7))(1²)+(5)(7)
(4)(7)(1²)+((−7)(7))(1²)+(5)(7)
=14
what is the image of the point (4, 0) after a rotation of 90 degrees counterclockwise about the origin
When point is rotated 90 degrees counterclockwise about the origin, point (x,y) becomes (-y,x).
Solving the QuestionWe're given
(4,0) rotated 90 degrees counterclockwise about the originMake the y-coordinate negative:
(4,0)
Switch around the coordinates:
(0,4)
Answer(0,4)
What is the conjugate?
a √a-1
Step-by-step explanation:
In maths, Conjugates are defined as a pair of binomials with identical terms but parting opposite arithmetic operators in the middle of these similar terms. For example, p – q is the conjugate of p + q.
complex conjugate of a complex number is the number with an equal real part and an imaginary part equal in magnitude but opposite in sign. That is, the complex conjugate of {\displaystyle a+bi} is equal to {\displaystyle a-bi.}
The math conjugate of a number is a number that when multiplied or added to the given number results in a rational number. For example,
The conjugate of a surd 6 + √2 is 6 - √2.
The conjugate of a complex number 5 - 3i is 5 + 3i.
A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 45 years old, with a standard deviation of 10 years. Suppose that these measures are valid for the population of all home buyers. Complete the following statements about the distribution of all ages of home buyers.
According to Chebyshev's theorem, at least 56% of the home buyer's ages lie between __ years and __ years. (Round your answer to the nearest whole number)
According to Chebyshev's theorem, at least what percent of the home buyers' ages lie between 25 years and 65 years.
Step-by-step explanation:
Given that
A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 45 years old, with a standard deviation of 10 years.That these measures are valid for the population of all home buyers.To find
Complete the given statements about the distribution of all ages of home buyers.So, according to the question
We have,
Mean of ages = 45, andStandard deviation = 10We know that,
Chebyshev's Theorem
The smallest percentage of observations that fall within a precise range of current standard deviations from the mean is estimated by Chebyshev's Theorem. There are many different chance distributions that are covered by this theorem. Chebyshev's Inequality is another name for Chebyshev's Theorem.When the distribution is not normal, Chebyshev's Theorem is used. It states that:
Measures are all within 2 standard deviations of the mean in at least 75% of cases.Measures are all within 3 standard deviations of the mean in at least 89% of cases.The percentage of measurements that are within k standard deviations of the mean is represented by an in general:[tex]P = 100(1-\frac{1}{k^2} )[/tex]
Chebyshev's Theorem is used to determine that:
At least 56% of home buyers are between the ages of 30 and 60.At least 75% of home buyers are between the ages of 25 and 65.For the 1sr item, we have to find k at P = 56,
[tex]P = 100(1-\frac{1}{k^2} )[/tex]
[tex]56 = 100(1-\frac{1}{k^2} )[/tex]
0.56 = 1 - [tex]\frac{1}{k^2}[/tex]
[tex]\frac{1}{k^2} = 0.44[/tex]
k² = 1/0.44
k = [tex]\sqrt{\frac{1}{0.44} }[/tex]
k = 1.5
The bounds are, therefore, within 1.5 standard deviations:
45 - 1.5 × 10 = 30 years old.45 + 1.5 × 10 = 65 years old.Ages 25 and 65 are both 2 standard deviations away from the mean, so:
At least 75% of the home buyers' age lie between 25 years and 65 years.Answer:
According to Chebyshev's theorem, at least 56% of the home buyer's ages lie between 30 years and 65 years.According to Chebyshev's theorem, at least what 75% of the home buyers' ages lie between 25 years and 65 years.To learn more about Chebyshev's theorem, please click on the link:
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A+1/6=1/6 solve the equation
Answer:
Step-by-step explanation:
A + 1/6 = 1/6
subtract 1/6 from both sides
A = 0
The difference of 3 times a number and 5 is 13. Write and solve an equation to
find the number.
Answer:
n=8/3
Step-by-step explanation:
3n-5=13
3n=8
n=8/3
Ji-yoon started the week with a balance of -$90 in her checking
account. She then wrote a check for $130. Write an expression with
addition that can be used to find the new balance.
Answer:
-$90 + $130= $40
Step-by-step explanation:
Im not sure if this is what you were looking for
X °
52°
230°
38°
Find the value of X.
Answer:
Step-by-step explanation:
all of the angles complete a circle so they must add up to 360 degrees.
230 + 38 + 52 + x = 360
320 + x = 360
x = 40 degrees
You are the owner of four Taco Bell restaurant locations. You have a business loan with Citizens Bank taken out 60 days ago that is due in 90 days. The amount of the loan is $50,000, and the rate is 9.5% using ordinary interest.
You currently have some excess cash: $35,000. Due to situations beyond your control, you, as the owner, must make an immediate business decision now to pursue only one of these two choices:
1) sending all of the $35,000 to Citizens Bank as a partial payment on your loan, or
2) using the $35,000 to purchase serving supplies such as food containers, cups, and plastic dinnerware for your inventory. This is the last day to take advantage of the opportunity to save some money due to a special discount price that is "10% off" the normal cost of $35,000 for these items.
Consider these calculations:
(a)
How much interest (in $) will you save on this loan if you make the partial payment and don't purchase the additional serving supplies? (Round your answer to two decimal places.)
$
(b)
How much money (in $) will you save if you purchase the serving supplies with the discount and don't make a partial payment on the loan? (Round your answer to two decimal places.)
$
(c)
How much (in $) will you save by purchasing the discounted serving supplies rather than making the partial payment? (Hint: Find the difference between the savings on the supplies found in part (b) and the savings on the loan interest found in part (a). Round your answer to two decimal places.)
$
(d)
What other factors should you consider before making this decision?
The amount saved by repaying the loan early is $831.25
The amount of discount received by purchasing supplies is $3,500
The net amount saved by purchasing supplies rather than repaying loan is $2,668.75
What is ordinary interest?
Ordinary interest is the interest computation that is based on 360-day a year count rather than 365-day year count, hence, in determining the amount saved by paying $35,000 out of the amount due to Citizens Bank, we time-apportion the interest for 90 days with respect to 360 days not 365 days.
Amount saved in interest=$35,000*9.5%*90/360
Amount saved in interest=$831.25
Using the $35,000 to purchase serving supplies, 10% discount is given off the normal cost of $35,000
Amount saved with discount=10%*$35,000
Amount saved with discount=$3,500
The difference between discount on supplies and interest saved=$3,500-$831.25
The difference between discount on supplies and interest saved=$2,668.75
The other factors to consider before making the final decisions include, the fact the loan is more important than the supplies because the loan relates to the firm's financing rather than operational needs of supplies
Secondly, the amount saved in interest may be more if another loan of $35,000 can be borrowed elsewhere with significant lower interest rates
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Find the value of k the diagram is not to scale
○ 80
○ 36
○ 100
○112
Find the value of k the diagram is not to scale
○ 80
○ 36
○ 100
○112
100 is your answer
PVIF8%,5 means that the rate is[blank]
and the time is[blank]
years?
Answer:
Step-by-step explanation:
it means the rate is 8% and the time is 5 years
