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3 years ago

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Mathematics

1 answer:

OLEGan [10]3 years ago

3 0

Step-by-step explanation:

so value of x=26 and y=4

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An inlet pipe on a swimming Pool can be used to fill the pool in 36 hours. The drainpipe can be used to empty the pool in 40 hou

krok68 [10]

So 2/3 of 36 is 24. So 24 that were filled and 2/3 of 40 is 80/3 which equals 26 2/3 to drain it. And then to fill the pool would be 36 hours. What's so hard...

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3 years ago

The rate (gallons per day) at which a pond loses water due to evaporation from one day after observation has started is give by

Andreyy89

Answer: see table below

<u>Step-by-step explanation:</u>

$\left\begin{array}{c|l}T&\qquad w(t)\\1&\dfrac{1}{1^2}=1\implies 1.00\\\\2&\dfrac{1}{2^2}=\dfrac{1}{4}\implies 0.25\\\\10&\dfrac{1}{10^2}=\dfrac{1}{100}\implies 0.01\\\\50&\dfrac{1}{50^2}=\dfrac{1}{2500}\implies 0.0004\\\\100&\dfrac{1}{100^2}=\dfrac{1}{10000}\implies 0.0001\\\\200&\dfrac{1}{200^2}=\dfrac{1}{40000}\implies 0.000025\\\\500&\dfrac{1}{500^2}=\dfrac{1}{250000}\implies 0.000004\\\\1000&\dfrac{1}{1000^2}=\dfrac{1}{100000}\implies 0.000001\\\end{array}\right$

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3 years ago

What are the coordinates of the terminal point for 0=330

Ira Lisetskai [31]

Answer: Option C.

Step-by-step explanation:

The coordinates (x,y) of a terminal point for an angle θ are:

x = cos(θ) and y = sin(θ).

In this case, we have θ = 330°.

Then we have:

x = cos(330°) = 0.866 = (√3)/2

y = sin(330°) = -0.5 = -1/2

then the coordinates of the terminal point are ((√3)/2, -1/2)

Then the correct option is c.

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3 years ago

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sergiy2304 [10]

Answer:

6. negative

7. positive

8. positive

9. positive

10. positive

Step-by-step explanation:

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3 years ago

Simplify the expression |ab^3| , if: a 0

Nutka1998 [239]

Answer:[45] i think

Step-by-step explanation:

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4 years ago