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bixtya [17]
3 years ago
5

What is the value of a?

Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

180-(4a+32)=48-4a

(142-4a)+39+(a+41)=180

-4a+a=180-142-39-41

-3a= -48

a=-48/-3

a=16

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Find the area of a circle with diameter 12 cm.
luda_lava [24]

Answer:

113.04 cm.

Step-by-step explanation:

Step 1: <u>Formula/explain</u>

To find the area of a circle, multiply the radius by itself twice, then multiply the product pi.

a=\pi r^2(3.14*radius*radius)

Step 2: <u>Solve</u>

According to the word problem, the circle has a diameter of 12. This means it has a radius of 6.

Now, we plug the numbers into formula.

\pi 6^2 (3.14*6*6)=113.04

Step 3: <u>Conclude</u>

Therefore, the area of this circle is 113.04 cm.

3 0
2 years ago
A female cockroach can produce 80 offspring at a time. If half are female, and each female produces 80 offspring, how many cockr
IRINA_888 [86]
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3 0
3 years ago
Read 2 more answers
Y=-2/3x+2 how to graph
Nikolay [14]

Step-by-step explanation:

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6 0
3 years ago
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svetlana [45]

Answer:

3/10ths of the money

Step-by-step explanation:

Add together the two numbers to get the total.

Josh gets 30 percent and Lucy gets 70 percent.

3/10

8 0
3 years ago
Read 2 more answers
1. What is the value of x? Show all of your work.
asambeis [7]
AB^2 + BC^2 = AC^2
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Now subtract 117 from both sides
AB^2 = 81
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\sqrt{81}  = 9
Therefore AB is 9 cms.
3 0
3 years ago
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