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notka56 [123]
3 years ago
8

PLEASE HELP, MUST ANSWER NOW!!!!!!!!!!

Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

20

Step-by-step explanation:

In-s [12.5K]3 years ago
3 0

Answer:

20

Step-by-step explanation:

( it might be wrong pls dont report me just let me kno y its wrong )

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A certain forest covers an area of 2,000 square kilometers. Suppose that each year this area decreases by 6%. What is the functi
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The volume of a cone with a height of 4 cm is 12π cubic cm. What is the radius of the base?
blondinia [14]

Answer:

r = 6cm

Step-by-step explanation:

Solve for r:

v =  \frac{1}{3} \pi {r}^{2}

12\pi =  \frac{1}{3} \pi {r}^{2}  \\ 12\pi =  \frac{\pi {r}^{2} }{3}  \\ 3 \times 12\pi = \pi {r}^{2}  \\ 36\pi = \pi {r}^{2}  \\  \frac{36\pi}{\pi}  =  \frac{\pi {r}^{2} }{\pi}  \\  \sqrt{ {r}^{2} }  =  \sqrt{36}  \\ r = 6

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2 years ago
A point has the coordinates (m,0) and m unequal 0. Which reflection of the point will produce an image located at (0,-m)
melisa1 [442]

Answer:

y = -x

Step-by-step explanation:

it because the reflection change the value of x become -y

so the reflection we can use is the line y = -x

8 0
3 years ago
Evens Only| Pls Help And Explain (NEED HELP ASAP) 100 Points + Brainist
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Can someone help me get the answer for this? i don’t understand it, any help is appreciated :))
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A circle is a geometric object that has symmetry about the vertical and horizontal lines through its center. When the circle is a unit circle (of radius 1) centered on the origin of the x-y plane, points in the first quadrant can be reflected across the x- or y- axes (or both) to give points in the other quadrants.

That is, if the terminal ray of an angle intersects the unit circle in the first quadrant, the point of intersection reflected across the y-axis will give an angle whose measure is the original angle subtracted from the measure of a half-circle. Since the measure of a half-circle is π radians, the reflection of the angle π/6 radians will be the angle π-π/6 = 5π/6 radians.

Reflecting 1st-quadrant angles across the origin into the third quadrant adds π radians to their measure. Reflecting them across the x-axis into the 4th quadrant gives an angle whose measure is 2π radians minus the measure of the original angle.

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