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bulgar [2K]
3 years ago
10

PLEASE HELP!!!!!!!! WILL MARK AS BRAINLIEST!!!!!

Mathematics
1 answer:
Ratling [72]3 years ago
7 0

A.) 2, 7

and heres other words so i can send it

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Jashawn wants to make 5 airplanes. He needs 18 centimeters of wood for each propeller. How many centimeters of wood will he use.
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He will use 90 centimeters of wood
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Write an expression and<br>then solve for x.<br>149​
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Bob gets paid more in tips when he works more hours at the restaurant. Which is the dependent variable? A. hours worked B. tips
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an ice cream factory makes 190 quarts of ice cream in 5 hours how many quarts could be made in 48 hours?what was the rate per da
GREYUIT [131]

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7 0
3 years ago
An inverted pyramid is being filled with water at a constant rate of 25 cubic centimeters per second. The pyramid, at the top, h
UNO [17]

Answer:

\frac{225}{16} cm/s

Step-by-step explanation:

We are given that

\frac{dV}{dt}=25cm^3/s

Side of base=4 cm

l=w=4 cm

Height,h=12 cm

We have to find the rate at which the water level rising when the water level is 4 cm.

Volume of pyramid=\frac{1}{3}lwh=\frac{1}{3}l^2h

\frac{l}{h}=\frac{4}{12}=\frac{1}{3}

l=\frac{1}{3}h

Substitute the value

V=\frac{1}{27}h^3

Differentiate w.r.t t

\frac{dV}{dt}=\frac{3}{27}h^2\frac{dh}{dt}

Substitute the values

25=\frac{1}{9}(4^2)\frac{dh}{dt}

\frac{dh}{dt}=\frac{25\times 9}{16}=\frac{225}{16} cm/s

5 0
3 years ago
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