3 years ago

21/80 in a simplified fraction

Mathematics

2 answers:

mihalych1998 [28]3 years ago

8 0

It cant be simplified.................

Likurg_2 [28]3 years ago

6 0

21/80 is in simplified form...it will not reduce

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Can y’all please help

xxMikexx [17]

Given: f(x) = 2x^2 +5sqrt(x-2)

Evaluate this for x=6:

f(6) = 2(6)^2 + 5sqrt(6-2) = 72 + 5(2) = 72 + 10 = 82 (answer)

4 0

3 years ago

What's 5 + 10? Honestly I graduated and just wanted to give away my points. Have fun.

Rainbow [258]

Answer:

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2 years ago

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What is the value of this expression?

solmaris [256]

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2 years ago

A building across the street casts a shadow that is 24 feet long. Your friend is 6 feet tall and casts a shadow that is 4 feet l

Makovka662 [10]

the answers 36 ft tall

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3 years ago

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Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

7 0

3 years ago