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ololo11 [35]
3 years ago
7

HELP ILL GIVE U BRAINLIEST 10 POINTSQuestion 9 (1 point)

Mathematics
1 answer:
PtichkaEL [24]3 years ago
8 0

Answer:4

Step-by-step explanation:

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A cake has circumference of 25 1/7 inches. What is the area of the cake? Use 22/7 to approximate π. Round to the nearest hundred
choli [55]

Answer:

50.29 in^2

Step-by-step explanation:

From the circumference we need to find the radius.

Since C = 2*pi*r, r = C / (2*pi).

Here, with C = 25  1/7 in, r = (25  1/7 in) / [ 2(22/7) ], or r = 4 in

The area of the cake is A = pi*r^2, or (here)  A = (22/7)(4 in)^2 = 50.29 in^2

5 0
3 years ago
If the complex number x = 3 + bi and |x| 2 = 13, which is a possible value of b?
tatyana61 [14]

Answer:

A.2

Step-by-step explanation:

We know that |x|² = 13 and x = 3+bi:

(3+bi)² = 13

3² + b² = 13

9 + b² = 13

Subtract 9 from each side:

9 + b² - 9 = 13 - 9

b² = 4

Take the square root of each side:

√b² = √4

b = 2

5 0
3 years ago
-3(x+ 2y) + 5(3x - y) + y2 for x = 6 and y= 2.
Vera_Pavlovna [14]

Answer:

54

Step-by-step explanation:

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3 years ago
How to write an algebraic expression for 0.75 + 0.25
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geber.
5 0
3 years ago
If you get paid $3 for working 25 minutes how much do u get paid for your job per minute
Nina [5.8K]
$3 for 25 minutes, 3 divided by 25
 
3 : 25 = 0.12 : 1

Therefore, you get paid $0.12 per minute
3 0
3 years ago
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