Tuesday
October 21, 2014

Homework Help: Math

Posted by This Girl on Monday, October 29, 2012 at 12:22pm.

1.
If a number is not a rational number, then it is _____. (1 point)

an integer
an irrational number
a whole number
a radical

2.
A picture frame is 12 inches long and 9 inches wide. In inches, what is the diagonal length of the picture frame? (1 point)

21
15
8
6

3.
Which number is a perfect cube? (1 point)

7
25
27
66

4.
When adding square root 9 and 7, which type of number is the sum? (1 point)

irrational
whole number
radical
integer

5.
What is square root 36 over 49? (1 point)

18 over 25
20 over 27
6 over 7
8 over 9

6.
Tomas needs to cut a piece of wood for a model airplane he is building. He has four pieces of wood: 5 feet, 4 feet, 6 feet, and 3 feet long. If the length of wood he needs to cut is square root 11 feet long, which piece of wood should he cut to have the least amount of unused wood? (1 point)

3 feet
4 feet
5 feet
6 feet

7.
If the sail of a ship is 10 feet long and has a diagonal length of 26 feet, what is the height of the sail, in feet? (1 point)

29
24
17
8

8.
Four students work to find an estimate for square root 37. Who is closest to finding the true estimate? (1 point)

Rhonda: "Use square root 16 and square root 25 to estimate."
Ricardo: "I use square root 25 and square root 36."
Riley: "It should be between square root 36 and square root 49."
Rhiannon: "Use square root 49 and square root 64 to estimate."

9.
Which of these nonterminating decimals can be converted into a rational number? (1 point)

0.48907542 . . .
0.02020202 . . .
0.92589542 . . .
0.10203040 . . .

10.
Paul is painting a square wall with an area of 115 square feet. To the nearest foot, what is the length of the wall? (1 point)

11
29
42
58

11.
Robbie draws a square with an area of 856 square inches. What is the approximate length, in inches, of one side of the square? (1 point)

30
29
26
24

12.
Which statement is true? (1 point)

Every integer is an irrational number.
Every integer is a whole number.
Every square root is a rational number.
Every rational number can be written as a fraction.

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