2 years ago

Find the degree of the angles whose sine is -1/2 (that's a fraction)

Mathematics

1 answer:

Akimi4 [234]2 years ago

8 0

I think is first one

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BIG IDEAS MATH

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Answer:

106

Step-by-step explanation:

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1 year 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

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

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

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2 years ago

HELP WILL GIBE BRAINLIEST.<br> HOW MUCH IS IT FOR 1

Irina-Kira [14]

Answer:

small is 0.018

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On Tuesday, Gavin jogged 5 km. On Wednesday, he jogged 6.2 km, and on Thursday he sprinted 50 m. How many meters did he travel i

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He jogged 61.2 km hope this helps.

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What is the difference between 2.23 seconds and 3.13 seconds?

boyakko [2]

Answer:

0.9

Step-by-step explanation:

3.13-2.23=0.9

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