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PolarNik [594]
3 years ago
15

The radius of a giant beach ball is 18 inches. What is its surface area?

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

4071.5 in^2

Step-by-step explanation:

The surface area of a sphere of radius r is A = 4πr²

In this case, with r = 18 in, A = 4π(18 in)² = 4071.5 in²

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Complete the pairs of corresponding parts if △ABD ≅ △EFC.
vovangra [49]

Answer:

We conclude that:

∠A = ∠ FEC

Step-by-step explanation:

Given

△ABD ≅ △EFC

To determine:

∠A =

As

△ABD ≅ △EFC

So the triangles △ABD and △EFC are congruent to each other.

  • We know that congruent triangles have equal corresponding parts.

Please check the attached graph.

From the graph, it is clear that ∠A is correspondent to ∠E.

∠A = ∠E

From the attached figure, it is clear that:

∠F can also be denoted by ∠ FEC

as

∠A = ∠E

so

∠A = ∠ FEC

Therefore, we conclude that:

∠A = ∠ FEC

6 0
3 years ago
7×1000 equals wut Help me​
Aleonysh [2.5K]

Answer:

7000

Step-by-step explanation:

Hope this helps! :)

7 0
3 years ago
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Please need help, Will give brainiest!!!!
timurjin [86]
I'd say its D but im not quite sure, its what makes most sense to me.
6 0
3 years ago
Question 3
hoa [83]

answer is (-7,2)

y = -x -5

y= x+9

Both equations have y on the left hand side

So we equate both equations

We replace -x-5 for  y in the second equation

-x -5 = x+9

Subtract x on both sides

-2x -5 = 9

Now add 5 on both sides

-2x = 14

Divide by -2 from both sides

x = -7

Now plug in -7 for x in the first equation

y = -x -5

y = -(-7)  -5= 7-5 = 2

So answer is (-7,2)

4 0
3 years ago
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(FASTEST AND BEST ANSWER GETS BRAINLIEST)
Lorico [155]

Answer:

Step-by-step explanation:

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2 years ago
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