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3 years ago

13

Ms. Carmell's art class is making a mosaic to cover an ugly concrete wall along a a highway off ramp the wall forms a right tria

ngle with a base of 42 feet and a height of 12 feet what area will the class need to cover

1 answer:

GuDViN [60]3 years ago

4 0

252 you multiply the 42 and 12 then devoid even by 2

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If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v

pochemuha

Answer:

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = $5000(1 - \frac{1}{40}t )^2$ , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = $2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )$

V'(t) = $2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )$

When we simplify the above, we get

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

4 0

4 years ago

Write and test a conjecture about the quotient of a negative number and a positive number. Give at least two examples when testi

4vir4ik [10]

Answer:A negative number divided by a positive number is always negative

Step-by-step explanation:

5 0

3 years ago

What is the value of log, 625?<br> help ?

expeople1 [14]

I think the answer isssss 2795

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3 years ago

1 Each tire on Bruno's delivery truck weighs 48.25

Vitek1552 [10]

Answer: A. 289.5

Method: 48.25 x 6 = 289.5

3 0

3 years ago

When three pipes fill a pool, they can finish in 12 hours. Two of the pipes can finish in 18 hours if they are working together.

ladessa [460]

3 pipes take 12 hours
⇒ In 1 hour, the 3 pipes can fill 1/12 of the pool

2 of the pipes take 18 hours
⇒ in 1 hour, the 2 pipes can fill 1/18 of the pool

In 1 hour, the third pipe alone can fill :

$\dfrac{1}{12} - \dfrac{1}{18} = \dfrac{3}{36} - \dfrac{2}{36} = \dfrac{1}{36} \text { of the pool}$

Time needed :

$1 \div \dfrac{1}{36} = 1 \times 36 = 36 \text { hours}$

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Answer: It will take 36 hours for the third pipe to fill the pool.
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5 0

3 years ago

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