# General SAT (College Board) Mathematics: Questions 16 - 21 of 101

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## Question number: 16

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Appeared in Year: 2010

MCQ▾

### Question

Let the function be defined by for all values of. If, what is the value of ? (January)

### Choices

Choice (5) Response

a.

15

b.

10

c.

30

d.

25

e.

20

## Question number: 17

Edit

Appeared in Year: 2010

MCQ▾

### Question

If and , what is the value of ? (January)

### Choices

Choice (5) Response

a.

6

b.

-2

c.

8

d.

4

e.

2

## Question number: 18

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Appeared in Year: 2008

MCQ▾

### Question

In the figure above, . What is the value of y? (January)

### Choices

Choice (5) Response

a.

60

b.

55

c.

70

d.

65

e.

75

## Question number: 19

Edit

Appeared in Year: 2010

MCQ▾

### Question

The average (arithmetic mean) of five numbers is 80. If a sixth number, 80, is added to the group, what is the average of the six numbers? (January)

### Choices

Choice (5) Response

a.

60

b.

30

c.

80

d.

90

e.

75

## Question number: 20

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Appeared in Year: 2010

MCQ▾

### Question

In the figure above, is an obtuse angle, what is the value of? (January)

### Choices

Choice (5) Response

a.

30

b.

58

c.

10

d.

15

e.

64

## Question number: 21

Edit

Appeared in Year: 2008

MCQ▾

### Question

In the figure above, what is the area of triangle AEC? (January)

### Choices

Choice (5) Response

a.

6

b.

1

c.

4

d.

2

e.

8

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