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3 years ago

Prove: In an equilateral triangle the three medians are equal.

Mathematics

1 answer:

svet-max [94.6K]3 years ago

8 0

yes because it has equal sides

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A circle circumference is 600 M. what is the good approximation of the circle area

wlad13 [49]

Answer:

The area of the circle is 28662 M².

Step-by-step explanation:

Given:

Circumference of circle = 600 M.

Now, to find the area of the circle.

So, to get the area we need to find the radius.

By putting the formula of circumference we get the radius:

Let the radius be r.

Circumference = 2πr

$600 = 2\times 3.14\times r$ (taking the value of π = 3.14.)

$600=6.28r$

Dividing both sides by 6.28 we get:

$95.54=r$

Now, for getting the area we put the formula:

Area = πr²

$Area = 3.14\times 95.54^{2}$

$Area = 3.14\times 9127.89$

$Area = 28661.57$

So, approximately the area of the circle = 28662 M².

Therefore, the area of the circle is 28662 M².

4 0

3 years ago

= Given f(x) 2x3 + kx + 6, and x + 2 is a factor of f(x), then what is the value of k?

FinnZ [79.3K]

Answer:

Look

Step-by-step explanation:

best solution is ask ur mom

7 0

2 years ago

Please help, I will mark Brainliest.

Goshia [24]

It’s rational because the square root of 0.49 is 0.7

3 0

3 years ago

You lease a car with a 7.5% annual interest rate, what is the money factor?

VLD [36.1K]

Answer:

1.075

Step-by-step explanation:

cuz I said so

5 0

3 years ago

The radius of this ball is 15 inches. Which equation gives the ball's surface area, in square inches?

victus00 [196]

Answer:

$\large\boxed{S.A.=4500\pi\ in^2\approx14130\ in^2}$

Step-by-step explanation:

The formula of a surface area of a ball (sphere):

$S.A.=\dfrac{4}{3}\pi R^3$

R - radius

We have R = 15in. Substitute:

$S.A.=\dfrac{4}{3}\pi(15^3)=\dfrac{4}{3}\pi(3375)=4500\pi\ in^2$

If you want to get an approximation, then:

$\pi\approx3.14\\\\S.A.\approx(4500)(3.14)=14130\ in^2$

5 0

3 years ago