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photoshop1234 [79]
3 years ago
15

What is the surface area of a sphere with a radius of 30m?

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
4 0
Formula: 4(pi)r^2

4(pi)r^2
4(pi)30^2
4(pi)900
3600(pi)

Answer: A. 3,600 (pi) M^2
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Find the area of the figure in the image attached. Round to the nearest tenth if necessary.
cricket20 [7]

Answer:

186 cm²

Step-by-step explanation:

<em>*First we can move the shape around a bit to make it simpler to solve. If we take the triangle from the left side and move it over to the right, it connects with the other piece to create a rectangle. This leave two rectangles total which is much easier to solve.</em>

<em>*To find the length of the right rectangle, you take the 22 cm at the bottom and subtract the 12 cm (which is being used as the length for the left rectangle). This will give you a length of 10 cm long.</em>

<u>Left rectangle:</u>

A = lh

A = 12 (8)

A = 96 cm²

<u>Right rectangle:</u>

A = lh

A = 10 (9)

A = 90 cm²

<u>Total:</u>

A = 90 + 96

A = 186 cm²

4 0
3 years ago
Read 2 more answers
How many items must she sell to break even?
nikklg [1K]

Answer:

20

Step-by-step explanation:

We have two simultaneous equations.

(1)  y = 2x + 50

(2) y = 4.5x

1. Subtract (1) from (2)

0 = 2.5x - 50

2. Add 50 to each side

2.5x = 50

3. Divide each side by 2.5

x = 20

Pilar must sell 20 items to break even.

8 0
3 years ago
If the length of AC equals 84, what is the length of the mid-segment DE?​
Nata [24]

Answer:

dang I forgot how to solve this but it has something to do with 360

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do I solve this, Harold bought 3 pounds of red apples and 4.2 pounds of green apples from a store, where both kinds are $1.7
Nadya [2.5K]
x-\ cost\ of\ apples\\\\&#10;spend\ money=3x+4,2x\\\\&#10;spend\ money=7,2x\\\\&#10;x=1,75\$\\\\&#10;spend\ money=7,2*1,75\\\\&#10;spend\ money=12,6\$
7 0
3 years ago
the value of y is directly proportional to the value of x. if y=36 when x=24, what is the value of x when y=135
Kipish [7]
When y=135, x=90
explanation:
36 divided by 24 equals 1.5
135 divided by 1.5 equals 90
5 0
3 years ago
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