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3 years ago

12

I want to know the answer of A to self check the answer i got! Would you write the expression and take away the area of the inte

rnal square or do you just times both the lengths of the first square? Eg is it just (x+5)(x+2) or do you minus the inside square? Thanks ❤️

1 answer:

V125BC [204]3 years ago

7 0

It is said the blue card is a rectangle, so you don’t have to minus the inside rectangle. :)

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Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 8 cubic feet

adell [148]

Answer:

dh/dt = 0,07 ft/min

Step-by-step explanation:

The swimming pool has the shape of right circular cylinder, therefore its volume is

V(c) = π*x²*h

Where x is the radius of the base and h the height

We take differentiation on both sides of the equation to get:

dV/dt = π*x²*dh/dt

The rate of change in height of water in the pool, is independent of the height of the water, since the pool is a right crcular cylinder, and dV/dt is constant at 8 ft³/min.

Then:

8 = π*x²*dh/dt

dh/dt = 8 / π*x²

dh/dt = 8/113,04

dh/dt = 0,07 ft/min

7 0

3 years ago

How do you do this (-4,6) and (3,-7) to find the distance between each pair of points

poizon [28]

You use x1-x2 over y1-y2
So -4-3 = 1 and 6- -7 is 1 so it’s 1/1. That’s the slope.

3 0

3 years ago

Whats the answer to this? Evaluate 3×6 − 12÷6

Paraphin [41]

Answer:

16

Step-by-step explanation:

3 times 6 is 18 and 12 divided by 6 is 2

18 - 2 =16

use the acronym PEMDAS

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3 years ago

Multiply and simplify if possible.<br> sqrt 5x(sqrt x-5 sqrt 5)

RSB [31]

Making the assumption that your problem looks like this,
$\sqrt{5x}(\sqrt{x}-5\sqrt{5})$

we use the distributive property to multiply:
$\sqrt{5x}\times \sqrt{x}-\sqrt{5x}\times5\sqrt{5}
\\
\\ \sqrt{5x^2} - 5\sqrt{25x}
\\
\\ x\sqrt{5}-25\sqrt{x}$

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3 years ago

What is 437 squared If you know please help me im doing exams Right now. Have a great day.

enyata [817]

190,969 should be the answer

4 0

3 years ago

Read 2 more answers