GED Mathematical reasoning 3

Question 1

A great circle of a sphere lies on its surface and contains its center. What is the circumference of a great circle of a sphere that has a surface area that measures 1,476 square centimeters?

NOTE:

Π (or Pi) equals 3.14.

(math4)

Accepted Answer

Approximately 68.1

Answer

74.5</label></li>

Answer

86.1</label></li>

Answer

54.7</label></li>

Question 2

What is the mean of this data set?

8, 47, 13, 17, 26, 32

Accepted Answer

23.83</label></li>

Answer

23.79</label></li>

Answer

23.62</label></li>

Answer

24</label></li>

Question 3

What is the median of this data set?

17, 42, 53, 97, 102, 82

Accepted Answer

67.5</label></li>

Answer

76.5</label></li>

Answer

53</label></li>

Answer

42</label></li>

Question 4

There are three books sold in different quantities. A $10 book sells six copies. A $5 book sells five copies. A $2 book sells three copies. What is the median price of all the books sold?

Accepted Answer

$5.00</label></li>

Answer

$6.50</label></li>

Answer

$6.50</label></li>

Answer

$5.25</label></li>

Question 5

Identify mode for the following data:

2, 2, 2, 2, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 11, 13, 12, 9, 9, 9, 2, 7, 7, 7

Accepted Answer

7</label></li>

Answer

2</label></li>

Answer

11</label></li>

Answer

9</label></li>

Question 6

Solve using the substitution method:

NOTE: Round long decimals to the nearest one hundredth.

y = 3x - 87

3x + 2y = 21

Accepted Answer

x=21.67
y=-21.99

Answer

x=-21.67
y=21.99

Answer

x=21.67
y=21.99

Answer

x=-21.99
y=-21.67

Question 7

If the product of 6 and an integer, n, is increased by 13, the result is -14. What is the value of n?

Accepted Answer

-4.5</label></li>

Answer

4.5</label></li>

Answer

162</label></li>

Answer

148</label></li>

Question 8

Solve for the positive value of c.

9c² - 11 = 718

Accepted Answer

9</label></li>

Answer

6</label></li>

Answer

11</label></li>

Answer

4</label></li>

Question 9

Solve for x:

-5x - 5 > 15

Accepted Answer

x < -4</label></li>

Answer

x > -4</label></li>

Answer

x > 4</label></li>

Answer

x = -4</label></li>

Question 10

What value does this numerical expression indicate?

Accepted Answer

10

Answer

8

Answer

56

Answer

89