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3 years ago

13

a plumber needs to replace 20 feet of copper piping. When he gets to the supply store, the lengths are given in meters. How many

meters of piping does he need to purchase

1 answer:

larisa [96]3 years ago

7 0

6 meters. You just need to switch the feet to meters.

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What is the sales tax on the chair shown if the tax rate is 5.75% ( the chairs price is $178.90)

timurjin [86]

If I remember how to do this right I’m pretty sure you just divid by 178.90 by 5.75 wich gives you 31.11 for the tax rate

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3 years ago

Calculus. Find the area.

matrenka [14]

Answer:

8/3 square units.

Step-by-step explanation:

First, visualize the area. You can refer to the attachment below.

To find the area then, we will integrate y from x = 0 to x = 2. Therefore:

$\displaystyle A=\int_0^2x^2\, dx$

Integrate:

$\displaystyle A=\frac{1}{3}x^3\Big|_{0}^2$

Evaluate:

$\displaystyle A=\frac{1}{3}[2^3-0^3]=\frac{1}{3}(8)=\frac{8}{3}$

The area is 8/3 square units.

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2 years ago

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Which of the following is NOT true for 6s + 25 + 5? *

maks197457 [2]

Answer:

B. There is only one value for s

Step-by-step explanation:

I hope this works for u.. :3

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3 years ago

2x + a = 2x -3 in the equation above, a is a constant l. for what value of a does the equation have no solutions?

xenn [34]

A=-3 and i think any value of 'a' makes those equation infinite solution because expression has same variable both side.

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3 years ago

the height of an object after t seconds is given by f(t)=-5t^2+20t (a) find the height of the object after 2 seconds, and includ

Leni [432]

Answer:

t=20 4=5 =6 =8 =9 10

Step-by-step explanation:

And that is iy

8 0

3 years ago