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3 years ago

(Square root of 12-4) (4+Square root of 12) Rational or irrational

Mathematics

1 answer:

alukav5142 [94]3 years ago

8 0

4 + square root of 12 is 7.464101615 and it's irrational

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What is the fact family for the numbers 15, 5, and 3

Delvig [45]

5×3=15
3×5=15
15÷5=3
15÷3=5

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2 years ago

Help please, would it be the answer choice C or D

UkoKoshka [18]

Answer:

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Explanation:

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3 years ago

F(x) = 7x + 9, g(x) = 4x - 1;<br> Find (fºg)(x).

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3 years ago

What is the perimeter of ΔABC?

11111nata11111 [884]

Answer:

Step-by-step explanation:

Two tangent segments drawn to a circle from the same point outside the circle are congruent. The two tangents at A measure 2. The two tangents at B measure 5. The two tangents at C measure 3.

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3 0

3 years ago

PLEASE SHOW WORK

CaHeK987 [17]

(C)

Step-by-step explanation:

The volume of the conical pile is given by

$V = \dfrac{\pi}{3}r^2h$

Taking the derivative of V with respect to time, we get

$\dfrac{dV}{dt} = \dfrac{\pi}{3}\dfrac{d}{dt}(r^2h)$

$\:\:\:\:\:\:\:= \dfrac{\pi}{3}\left(2rh\dfrac{dr}{dt} + r^2\dfrac{dh}{dt}\right)$

Since r is always equal to h, we can set

$\dfrac{dr}{dt} = \dfrac{dh}{dt}$

so that our expression for dV/dt becomes

$\dfrac{dV}{dt} = \dfrac{\pi}{3}\left(3r^2\dfrac{dh}{dt}\right)$

$\:\:\:\:\:\:\:= \pi r^2\dfrac{dh}{dt}$

Solving for dh/dt, we get

$\dfrac{dh}{dt} = \dfrac{1}{\pi r^2}\dfrac{dV}{dt}$

$\:\:\:\:\:\:\:= \dfrac{1}{9\pi\:\text{m}^2}(36\:\text{m}^3\text{/s})$

$\:\:\:\:\:\:\:= \dfrac{4}{\pi}\:\text{m/s}$

7 0

2 years ago