Question

A circle is measured by a straight line across its widest part. This line is the __________ of the circle.
A. area

B. volume

C. diameter

D. radius

Answer 1

Answer: C diameter


d is diameter
r is radius

Answer 2

thank you

Answer 3

What is the surface area of a circle that has a diameter of 14 inches?
A. 49.86 in2

B. 153.86 in2

C. 196.86 in2

D. 616.86 in2

Answer 4

Area=radius^2*pi
=49*pi
=49*3.14
=153.86

So B

Answer 5

When the numerator of a fraction is smaller than the denominator, it is a(n) __________ fraction.
A. improper

B. reduced

C. mixed

D. proper

Answer 6

Question 1 of 15 6.66 Points

If John had 6 apples and Nicole had twice as many, how many apples did the two have in total?
A. 6

B. 24

C. 18

D. 12
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Question 2 of 15 6.66 Points

The fraction 7/4 is known as a(n) __________ fraction.
A. reducing

B. improper

C. proper

D. whole
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Question 3 of 15 6.66 Points

The decimal number 0.75 means:
A. there are seven-and-a-half parts of a whole unit.

B. seventy-five tenths of a whole unit.

C. that a whole unit consists of seventy-five parts.

D. there are seventy-five parts of a whole unit that has 100 parts.
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Question 4 of 15 6.66 Points

A circle is measured by a straight line across its widest part. This line is the __________ of the circle.
A. area

B. volume

C. diameter

D. radius
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Question 5 of 15 6.66 Points

What is the surface area of a circle that has a diameter of 14 inches?
A. 49.86 in2

B. 153.86 in2

C. 196.86 in2

D. 616.86 in2
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Question 6 of 15 6.76 Points

When the numerator of a fraction is smaller than the denominator, it is a(n) __________ fraction.
A. improper

B. reduced

C. mixed

D. proper
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Question 7 of 15 6.66 Points

Subtract: 1586 - 987 = ?
A. 559

B. 699

C. 499

D. 599
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Question 8 of 15 6.66 Points

The fraction 25/100 can be reduced to 5/20, a fraction having the same value, by dividing both the numbers 25 and 100 by:
A. 25

B. 12

C. 10

D. 5
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Question 9 of 15 6.66 Points

Divide: 100/22 =
A. 4.345

B. 5.011

C. 4.545

D. 4.98
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Question 10 of 15 6.66 Points

Convert the mixed number, 1 3/4 , to a fraction. Reduce fraction if necessary.
A. 4/12

B. 4/7

C. 12/4

D. 7/4
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Question 11 of 15 6.66 Points

The surface area of any shape is expressed in:
A. length and width.

B. square units.

C. feet and inches.

D. cubic units.
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Question 12 of 15 6.66 Points

Reduce the fraction 20/100.
A. 4/20

B. 2/20

C. 1/5

D. 5
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Question 13 of 15 6.66 Points

The number “Pi” (∏) is often rounded to what number?
A. 3.15

B. 3.14

C. 3.01

D. 3.11
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Question 14 of 15 6.66 Points

Decimal numbers with digits both before and after the decimal point, such as 16.75, are referred to as:
A. the remainder.

B. decimal point numbers.

C. mixed decimal numbers.

D. the quotient.
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Question 15 of 15 6.66 Points

Solve: 1000 + 69 - 55 =
A. 986

B. 968

C. 1014

D. 1041
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