3 years ago

What is 0.0071 × 0.34

Mathematics

2 answers:

Talja [164]3 years ago

8 0

Answer:

0.002414

Step-by-step explanation:

KatRina [158]3 years ago

5 0

The answer is 0.002414

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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

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

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

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

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Answer:

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Step-by-step explanation:

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How many zero pairs can be created in the model below? <br> A. 0<br> B. 1<br> C. 2<br> D. 3

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I need help with math

Iteru [2.4K]

area = pi times radius squared

area = pi times 5 squared

area = pi times 25

area = 78.54

answer : 78.54 square feet

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