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2 years ago

6 Answer the following questions about this figure. If mZ1= 53°, what is mZ3?

Mathematics

1 answer:

Scrat [10]2 years ago

5 0

Answer:

143 degrees

Step-by-step explanation:

Triangle EDF is a right triangle and we know that angle 1 is equal to 53 degrees. So, angle 2 is equal to 180-90-53 = 37 degrees. Now that we want to find angle 3, we subtract the measure of angle 2 (which is 37) from 180. That gives us 143 degrees.

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UNO [17]

Answer:

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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= $\frac{1}{3}lwh=\frac{1}{3}l^2h$

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$l=\frac{1}{3}h$

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

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

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

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3 years ago

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romanna [79]

Answer:

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Step-by-step explanation:

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3 years ago

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Lunna [17]

Answer:

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Step-by-step explanation

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adoni [48]

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Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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