Which of the following is a composite number?
A. 61
B. 13
C. 31
D. 63

The answer is letter D. 63
63 is divisible by 3, 8, 9, and 21 so it is composite.

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Asked 351 days ago|10/1/2013 10:06:16 AM

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Solve this equation: 80 = 3y + 2y + 4 + 1.
A. y = 15
B. y = –15
C. y = 75
D. y = 1/5
User: Solve the following inequality: 38 28
B. x > 4
C. x

Weegy: 38 28 (More)

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Asked 351 days ago|10/1/2013 10:24:41 AM

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What is the value of 4 cubed?
A. 16
B. 43
C. 24
D. 64

Weegy: The value of 4 cubed is : D. 64 User: A school custodian waxed a gymnasium floor that measured 20 feet by 20 feet. How many square feet did she have to wax?
A. 80 square feet
B. 40 square feet
C. 400 square feet
D. 800 square feet
Weegy: B. 400 square feet User: Simplify this expression: 4p + 9 + (–7p) + 2 = ?
A. 11p + 11
B. 3p + 7
C. –3p + 11
D. 3p + 11
Weegy: 4p + 9 + ( 7p) + 2 = 4p + 9 - 7p + 2 = -3p + 11 User: Solve this equation: 4y + 228 = 352.
A. y = – 31
B. y = 3
C. y = 145
D. y = 31
User: Given the formula E = IR what is the formula for R?
A. R = EI
B. R = I ÷ E
C. R = E ÷ I
D. R = IE
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Updated 154 days ago|4/16/2014 7:59:40 AM

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18. Simplify and solve this equation: 4m + 9 + 5m – 12 = 42.
A. m = 5
B. m = –5
C. m = 4
D. m = -4

Weegy: 4m + 9 + 5m ? 12 = 42, 9m - 3 = 42, 9m = 45, m = 45/9, m = 5. The answer is C. m = 5. User: Solve this inequality: 3p – 16 Weegy: Solve this inequality: 3p ? 16 User: Using the formula C = 2 r, find the circumference of a circle with diameter of 28 inches.
A. 28 in.
B. 56 in.
C. 44 in.
D. 88 in.
Weegy: 87.96 inches is the circumference of a circle with diameter of 28 inches. User: What is the circumference of a circle with a diameter of 45 centimeters?
A. 141.4 centimeters
B. 6,361.7 centimeters
C. 70.7 centimeters
D. 282.7 centimeters
Weegy: In circles the circumference is 3.14 (p) times the Diameter.
Thus the formula looks like:
2pr or pd. Answer: D. 141.4 centimeters User: What is the circumference of a circle with a diameter of 30 centimeters?
A. 188.4 centimeters
B. 47.1 centimeters
C. 9.55 centimeters
D. 94.2 centimeters
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Updated 82 days ago|6/27/2014 12:37:02 AM

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The circumference of a circle with a diameter of 30 centimeters is C = Pi*d = 3.14*30 = 94.2 centimeters.

Added 82 days ago|6/27/2014 12:37:02 AM

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