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3 years ago

WILL GIVE BRAINLIEST! BUT YOU MUST EXPLAIN explain clearly ...

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

Add all numbers then divide by 6 (Add all numbers including 94 then divide by six to get your answer)

neonofarm [45]3 years ago

4 0

To calculate averages you must first add all the test scores.

add 82, 90, 78, 76 and 94.

next choose one of the options and add it on to the sum that you got from the original test scores

now divide the whole thing by how many trials there were (how many tests were done). in this case, including the option, 6 trials were completed so divide by 6.

if the answer is not 86, then repeat for other options until you get 86

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What is the area of the figure? 21 mm² 77 mm² 133 mm² 154 mm²

joja [24]

Answer:

154

Step-by-step explanation:

7*11+14*4+3*7=77+56+21=154

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3 years ago

Suppose the radius of the sphere is increasing at a constant rate of 0.3 centimeters per second. At the moment when the radius i

elixir [45]

<h2>At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.</h2>

Step-by-step explanation:

We have equation for volume of a sphere

$V=\frac{4}{3}\pi r^3$

where r is the radius

Differentiating with respect to time,

$\frac{dV}{dt}=\frac{d}{dt}\left (\frac{4}{3}\pi r^3 \right )\\\\\frac{dV}{dt}=\frac{4}{3}\pi \times 3r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}$

Given that

Radius, r = 24 cm

$\frac{dr}{dt}=0.3cm/s$

Substituting

$\frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi \times 24^2\times 0.3\\\\\frac{dV}{dt}=2171.47cm^3/min$

At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.

4 0

3 years ago

Please need the answer ASAP

kari74 [83]

Answer:

D) a 360° clockwise rotation about the center of the parallelogram will take the parallelogram PQRS onto itself.

Step-by-step explanation:

The parallelogram PQRS is in quadrant III (3) of the coordinate plane. If the image is reflected over the line x = -5 or y = -5, it would be the mirror image of itself and would move either left (x = -5) or down (y = -5) over the lines. A 180° rotation about the center of the parallelogram would move the object to quadrant I (1). However, a 360° clockwise rotation about the center of the parallelogram would cause the object to make a full circle and take the parallelogram PQRS onto itself.

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Kamila [148]

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4 years ago

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Aleks04 [339]

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3 years ago