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3 years ago

25 pts Maureen tracks the range of outdoor temperatures over three days. She records the following information.

Mathematics

1 answer:

nata0808 [166]3 years ago

5 0

Answer: 0 ≤ t ≤ 40

Step-by-step explanation:

0 and 40 are included in all 3 number lines.

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Express the following as a single number (2×1000)+(4×100)+(7×10)

TiliK225 [7]

Answer:

2470

Step-by-step explanation:

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2 years ago

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2x+3y = 15 x-3y=3 Solve

Arada [10]

By process of elimination. 3y and -3y get eliminated. Giving you

3x=18

Divide by 3 on each side

Giving you x=6

Plugging it into equation 2 you get

(6)-3y=3

Taking out the parenthesis you have

6-3y=3

Subtract by 6 on each side giving you

-3y=-3

Divide by -3 on each side giving you

y=1

So the answer for this equation is x=6 and y=1 or the ordered pair (6,1)

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3 years ago

WHICH IS EQUIVALENT TO A divided by 2 2A 1/2 A 2/A A/2

Bess [88]

A/2
1/2 A

Hope this helps!

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3 years ago

Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 3 cubic feet

gtnhenbr [62]

Answer:

Therefore the height of the water in the pool changes at the rate of $\frac{1}{3\pi}$ feet per minute.

Step-by-step explanation:

Given that the shape of swimming pool is right circular cylinder.

The rate of water pouring in the pool = 3 cubic feet per minute.

It means the rate of change of volume is 3 cubic feet per minute.

$\frac{dv}{dt}=3$ cubic feet per minute.

When the volume of the swimming pool changed it means the height of the water level of the pool change and the radius of the swimming pool remains constant.

Let the height of the pool be h.

The volume of the pool is = $\pi 3^2 h$ cubic feet

$=9\pi h$ cubic feet

Therefore,

v $=9\pi h$

Differentiating with respect to t

$\frac{dv}{dt}= 9\pi \frac{dh}{dt}$

Putting $\frac{dv}{dt}=3$

$3=9\pi \frac{dh}{dt}$

$\Rightarrow \frac{dh}{dt} =\frac{3}{9\pi}$

$\Rightarrow \frac{dh}{dt} =\frac{1}{3\pi}$

The change of height of the pool does not depend on the depth of the pool.

Therefore the rate of change of height of the water in the pool is $\frac{1}{3\pi}$ feet per minute.

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3 years ago

Which is true of the proportional relationship?

Julli [10]

Answer:

Step-by-step explanation:

Look at the graph and you can see that 1 week later the plant grew 2 inches. if you look at the other choices it is false because it didn't corresponding to the graph.

4 0

2 years ago