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3 years ago

For each model below write the portion of the grid that is shaded as a percent and as a fraction. EXPLAIN.

Mathematics

1 answer:

Rudik [331]3 years ago

5 0

Answer:

Just find the area of each shape .fir the first triangle it will be (0.5 x6 x6) so the answer is 18 . So the shaded part is 18 out of 100 or 18% . And so on for the trapezoid and the combined figure of square and triangle together

Step-by-step explanation:

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The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.1 in/s. At

kow [346]

Given:

$\dfrac{dr}{dt}=1.4\text{ in/s}$

$\dfrac{dh}{dt}=-2.1\text{ in/s}$

To find:

The rate of change in volume at $r=120\text{ in. and }175\text{ in.}$

Solution:

We know that, volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

Differentiate with respect to t.

$\dfrac{dV}{dt}=\dfrac{1}{3}\pi\times \left[(r^2\dfrac{dh}{dt}) + h(2r\dfrac{dr}{dt})\right]$

Substitute the given values.

$\dfrac{dV}{dt}=\dfrac{1}{3}\times \dfrac{22}{7}\times \left[(120)^2(-2.1) +175(2)(120)(1.4)\right]$

$\dfrac{dV}{dt}=\dfrac{22}{21}\times \left[-30240+58800\right]$

$\dfrac{dV}{dt}=\dfrac{22}{21}\times 28560$

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6 0

3 years ago

Answer the question.

Molodets [167]

A translation 5 units to the right , followed by a 180-degree counterclockwise rotation about the origin

4 0

3 years ago

Look at the graph.

SIZIF [17.4K]

Answerpizza:

Step-by-step explanation:

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3 years ago

Find an equation of the line containing the points (-5,7) and (-5,8). Express your answer in slope intercept form.

alexdok [17]

Try, pls, this:
1. Note, that for the both points x₁=x₂=-5, it means line is vertical, that is equation form is x=a, where a=number.
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4 years ago

URGENT NEED THIS ASAP! 50 POINTS

klasskru [66]

Answer:

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Step-by-step explanation:

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∴ the center is ( -2, 3)

radius of thw circle is 3

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3 years ago