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ACT Math Practice Test 7

Đề thi nằm trong bộ sưu tập: Tuyển Tập Bộ Đề Thi Đại Học Hoa Kỳ (ACT) - Có Đáp Án Chi Tiết

Số câu hỏi: 20 câuSố mã đề: 1 đềThời gian: 1 giờ

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Câu 1: 1 điểm

Points B and C lie on segment AD as shown below. The length of segment AD is 25 units; the segment AC is 19 units long; and the segment BD is 14 units long. How many units long, if it can be determined, is the segment BC?

Hình ảnh

A.  

5

B.  

6

C.  

8

D.  

11

E.  

Cannot be determined from the given information.

Câu 2: 1 điểm

The table below shows the number of pounds of apples grown last year in 4 cities. (Each whole apple on the graph represents 1,000 pounds of apples.) According to the graph, what fraction of the apples grown in all 4 cities were grown in Appleton?

Hình ảnh

A.  

5⁄24

B.  

1⁄4

C.  

1⁄6

D.  

5⁄19

E.  

3⁄16

Câu 3: 1 điểm

The hypotenuse of the right triangle LMN shown below is 22 feet long. The cosine of angle L is 23. How many feet long is the segment LM?

Hình ảnh

A.  

18.4

B.  

16.5

C.  

11.0

D.  

6.7

E.  

4.7

Câu 4: 1 điểm

After a snowstorm, city workers removed an estimated 12,000 cubic meters of snow from the downtown area. If this snow were spread in an even layer over an empty lot with dimensions 62 meters by 85 meters, about how many meters deep would the layer of snow be?

A.  

Less than 1

B.  

Between 1 and 2

C.  

Between 2 and 3

D.  

Between 3 and 4

E.  

More than 4

Câu 5: 1 điểm

The length L, in meters, of a spring is given by the equation L = (23)F+0.05, where F is the applied force in newtons. Approximately what force, in newtons, must be applied for the spring’s length to be 0.23 meters?

A.  

0.12

B.  

0.18

C.  

0.20

D.  

0.24

E.  

0.27

Câu 6: 1 điểm

A chord 8 inches long is 3 inches from the center of a circle, as shown below. What is the radius of the circle, to the nearest tenth of an inch?

Hình ảnh

A.  

4.0

B.  

4.3

C.  

5.0

D.  

6.9

E.  

8.5

Câu 7: 1 điểm

For the right triangle ABC shown below, what is tan B?

Hình ảnh

A.  

a⁄b

B.  

a⁄c

C.  

b⁄a

D.  

c⁄a

E.  

c⁄b

Câu 8: 1 điểm

Which of the following is a solution to the equation x2 + 25x = 0?

A.  

50

B.  

25

C.  

5

D.  

−5

E.  

−25

Câu 9: 1 điểm

What is the slope-intercept form of 6x − 2y − 4 = 0?

A.  

y = 6x − 2

B.  

y = 3x + 2

C.  

y = 3x − 2

D.  

y = −3x + 2

E.  

y = −6x − 4

Câu 10: 1 điểm

For all positive integers a, b, and c, which of the following expressions is equivalent to ac?

A.  

a×bc×b\frac{a\times b}{c\times b}

B.  

a×ac×c\frac{a\times a}{c\times c}

C.  

a×cc×a\frac{a\times c}{c\times a}

D.  

abcb\frac{a-b}{c-b}

E.  

a+bc+b\frac{a+b}{c+b}

Câu 11: 1 điểm

In the figure below, ABCD is a trapezoid. E lies on line AD, and angle measures are as marked. What is the measure of angle CDB?

Hình ảnh

A.  

25°

B.  

30°

C.  

55°

D.  

80°

E.  

100°

Câu 12: 1 điểm

The ratio of the side lengths for a triangle is exactly 7:11:13. In a second triangle similar to the first, the shortest side is 9 inches long. To the nearest tenth of an inch, what is the length of the longest side of the second triangle?

A.  

14.1

B.  

15

C.  

16.7

D.  

17.3

E.  

Cannot be determined from the given information.

Câu 13: 1 điểm

A square is circumscribed about a circle of a 5-foot radius, as shown below. What is the area of the square, in square feet?

Hình ảnh

A.  

144

B.  

100

C.  

25π

D.  

50

E.  

25

Câu 14: 1 điểm

Members of the fire department lean a 26-foot ladder against a building. The side of the building is perpendicular to the level ground so that the base of the ladder is 10 feet away from the base of the building. To the nearest foot, how far up the building does the ladder reach?

A.  

12

B.  

15

C.  

20

D.  

22

E.  

24

Câu 15: 1 điểm

The larger of two numbers exceeds three times the smaller number by 4. The sum of twice the larger number and 4 times the smaller number is 58. If x is the smaller number, which equation below determines the correct value of x?

A.  

3(2x + 4) + 4x = 58

B.  

3(2x − 4) + 3x = 58

C.  

2(3x + 4) + 2x = 58

D.  

2(3x + 4) + 4x = 58

E.  

2(2x − 4) + 4x = 58

Câu 16: 1 điểm

A park has the shape and dimensions, in miles, given below. The park office is located halfway between point A and point D. Which of the following is the location of the park office from point A? (Note: The park’s borders run east–west or north–south.)

Hình ảnh

A.  

3 miles east and 41⁄2 miles north

B.  

41⁄2 miles east and 4 miles south

C.  

4 miles east and 41⁄2 miles south

D.  

6 miles east and 4 miles south

E.  

6 miles east and 41⁄3 miles south

Câu 17: 1 điểm

If b = a + 3, then (a − b)4 = ?

A.  

81

B.  

27

C.  

−3

D.  

−27

E.  

−81

Câu 18: 1 điểm

Parallelogram ABCD, with dimensions in inches, is shown in the diagram below. What is the area of the parallelogram, in square inches?Parallelogram ABCD, with dimensions in inches, is shown in the diagram below. What is the area of the parallelogram, in square inches?

Hình ảnh

A.  

60

B.  

72

C.  

180

D.  

240

E.  

260

Câu 19: 1 điểm

For all pairs of real numbers S and T where S = 4T −7, T = ?

A.  

s⁄4-7

B.  

s⁄4+7

C.  

4S + 7

D.  

s74\frac{s-7}{4}

E.  

s+74\frac{s+7}{4}

Câu 20: 1 điểm

What is the x-coordinate of the point in the standard (x, y) coordinate plane at which the two lines y = −2x + 7 and y = 3x − 3 intersect?

A.  

10

B.  

5

C.  

3

D.  

2

E.  

1

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