All categories

2 years ago

Find the area of this circle

Mathematics

1 answer:

KiRa [710]2 years ago

7 0

Answer:

π(8)²=64π

Step-by-step explanation:

Area = Pi times radius squared

We know the Diameter is 16 so the radius must be 8.

8 squared = 64, then we multiply pi when you get your answer.

You might be interested in

Solve for x. 78(−32−48x)+36=23(−33x−18)−10x Enter your answer in the box. x =

Nina [5.8K]

Answer:

x=-0.688

Step-by-step explanation:

-2496-3744x+36 = -759x-414-10x

-2460-3744x = -769x-414

-2975x = 2046

5 0

3 years ago

Find all solutions of each equation on the interval 0 ≤ x<2π.

Aleksandr [31]

Answer:

$x = 0 \: or \:x = \pi$

Step-by-step explanation:

The given equation is

$\tan^{2} (x) \sec^{2} (x) + \sec^{2} (x) - \tan^{2} (x) = 2$

Subtract 2 from both sides and factor by grouping to get:

$\sec^{2} (x)(\tan^{2} (x) + 2) -1( \tan^{2} (x) + 2)$

$(\tan^{2} (x) + 2) (\sec^{2} (x) - 1) = 0$

By the zero product principle:

$(\tan^{2} (x) + 2) = 0 \: or \: (\sec^{2} (x) - 1) = 0$

$(\tan^{2} (x) = - 2 \: or \: \sec^{2} (x) = 1$

When

$\sec^{2} (x) = 1 \implies\cos^{2} (x) = 1$

$\implies \: \cos(x) = \pm1$

This implies

$x = 0 \: or \:x = \pi$

When

${ \tan }^{2} (x) = - 2$

We have

$\tan(x) = \pm \sqrt{ - 2}$

hence x is not defined for all real numbers

6 0

3 years ago

Read 2 more answers

Which graph shows the linear inequality y-2x-4?

Vlad [161]

First:

A graph that starts y< or y> will always be a dashed line, because the points on the line do not make the equality true.

A graph with y≤ or y≥ will have a solid line.

Second,:

If the equation is y<, then the shading will be below the line. (If you were standing on the line, you'd look straight down for the solutions.)

If the equation is y>, then the shading will be above the line. (If you were standing on the line, you'd look straight up for the solutions.)

For your exercise:

Neither A nor B fits that inequality. I hope there are options C and D

6 0

3 years ago

The endpoints of AB are -1 and 9. Find the coordinate of the point P that partitions the segment in the ratio 1:4

masya89 [10]

Answer:

Step-by-step explanation:

P = -1 + [ 1/(1+4) × (9- (-1)) ]

= -1 + (1/5 × 10)

= -1 +2

= 1

7 0

3 years ago

Read 2 more answers

Solving the equation for 2-v=5(v+4)

Nonamiya [84]

1. Distribute
5v + 20 = 2 - v
2. Put v’s on one side of the equation
6v + 20 = 2
3. Simply equation
6v = -18
4. Solve for v
-18 / 6 = -3
V = -3

3 0

3 years ago

Find the area of this circle​

Find the area of this circle