a swimming pool had a list price of $575.25 and was on sale for 10% off.Sara had a coupon for an extra $75 off. What will her cost be before tax?

Answers

Answer 1

Answer: 10%•575.25=57.525~57.53
575.25-(75+57.53)=$442.72

Answer 2

Answer:

Answer:

First take 10% off of $575.25. 10% of $575.25 is $57.53, so 10% off would be $575.25-$57.53, which makes the price $517.72. Then, including the $75 coupon, reduces the price down to $442.72. Therefore, her price before tax is $442.72.

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Pls need help now! Emergancy!

Answers

1 ton=2000pounds
120ton=2000lb times 120=240000lb

1/40 of that weight
240000/40=24000/4=6000

answer is 6000lb

What is the rectangular form of the polar equation?

θ=−7π/6

Answers

The rectangular form of the polar equation $\theta=(-7\pi )/(6)$ is:

$x = r * (\sqrt3)/(2)\ny = r * (-1)/(2)$

Mathematical formulations known as polar equations show the connections between locations in a polar coordinate system. In a polar coordinate system, a point's distance from the origin serves as its definition.

To convert a polar equation into a rectangular form, we can use the following formulas:

$x = r * cos(\theta)\ny = r * sin(\theta)$

In this case, the polar equation is $\theta=(-7\pi )/(6)$ .

Using the conversion formulas, we can substitute the value of θ into these equations:

$x = r * cos\left((-7\pi)/(6)\right)\ny = r * sin\left((-7\pi)/(6)\right)$

Evaluate the trigonometric functions $cos\left((-7\pi)/(6)\right)\n$ and $sin\left((-7\pi)/(6)\right)$ .

$cos\left((-7\pi)/(6)\right) = cos\left(\frac {\pi}{6}\right) = (\sqrt3)/(2)$

$sin\left((-7\pi)/(6)\right) = -sin\left( (\pi)/(6)\right)\n=( -1)/(2)$

Substituting these values back into the equations:

$x = r * (\sqrt3)/(2)\ny = r * (-1)/(2)$

To learn more about polar equations follow

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Answer:

the answer is y= 0.5774xstep by step explanation

Nat spent $28 on 8 DVDs. At this rate, how much would 5 DVDs cost? What is the unit rate?

Answers

You first have to find the rate of the DVDs. To do this you need to divide $28 by the number of DVDs, 8. 28/8 equals 3.5 so that means that a single DVD costs $3.50. To find the rate of 5 DVDs you need to multiply the rate of a single DVD by 5: 3.50 x 5= 17.50
5 DVDs costs $17.50 and the unit rate is $3.50 per DVD

5 DVDs would cost 7.50 and the unit rate is 3.50

there are 40 girls in a computer club. the ratio of girls to boys is 2 to 5. How many boys are in the club? complete this table to find out.

Answers

girsl=2 units
boys=5 units

girls=2units=40
divide 2
1 unit=20

boys=5 unit
5 times 20=100
boys=100

divide 40 by 20 to get 2. multiply 5 by 20 to get 100. 100 boys are in the club.

Does anyone know how to do this

Answers

Answer:

m+n=140

Step-by-step explanation:

While it may seem you need to find the measure of m and n, you don't. Looking at the angle with measure of 40 degrees you can see inside the triangle that the top angle is congruent to the angle of 40 degrees. Now that you know that the top of the angle is 40 degrees then knowing a triangle is 180 degrees total you can infer that m+n=140 because adding 140 to 40 is also 180.

Which expression is not equivalent to -4x^3+x^2-6x+8?a) x^2(-4x+1)-2(3x-4)
b) x(-4x^2-x+6)+8
c) -4x^3+(x-2)(x-4)
d) -4(x^3-2)+x(x-6)

Answers

Answer:

option b is not equal to the given polynomial

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