Mathematics Homework Help

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Mathematics Exam Practice

 

Question 1 (2.5 points)

If a circle has a diameter of 8 cm what is the area of the circle?

Question 1 options:

a)

64 pi square cm

b)

16 pi square cm

c)

64 cm

d)

16 cm

Question 2 (2.5 points)

Find all numbers such that three times the number is greater than eight less than the number.

Question 2 options:

a)

{x|x>−4}{“version”:”1.1″,”math”:”{x|x>–4}“}

b)

{x|x>−2}{“version”:”1.1″,”math”:”{x|x>–2}“}

c)

{x|x<−4}{“version”:”1.1″,”math”:”{x|x<–4}“}

d)

{x|x>4}{“version”:”1.1″,”math”:”{x|x>4}“}

Question 3 (2.5 points)

Solve: 9x=−72{“version”:”1.1″,”math”:”9x=–72“}

Question 3 options:

a)

8

b)

-8

c)

-81

d)

-648

Question 4 (2.5 points)

Solve: −23+x=−67{“version”:”1.1″,”math”:”–23+x=–67“}

Question 4 options:

a)

−3221{“version”:”1.1″,”math”:”–3221“}

b)

−97{“version”:”1.1″,”math”:”–97“}

c)

−25{“version”:”1.1″,”math”:”–25“}

d)

−421{“version”:”1.1″,”math”:”–421“}

Question 5 (2.5 points)

The sum of the page numbers on the facing pages of a book is 553. Find the smaller page number.

Question 5 options:

a)

277

b)

275

c)

226

d)

276

Question 6 (2.5 points)

Solve: 4x−3=9x+6−5x−9{“version”:”1.1″,”math”:”4x–3=9x+6–5x–9“}

Question 6 options:

a)

No solution

b)

98{“version”:”1.1″,”math”:”98“}

c)

1

d)

All real numbers

Question 7 (2.5 points)

Calculate (−3)5{“version”:”1.1″,”math”:”(–3)5“}

Question 7 options:

a)

15

b)

-15

c)

243

d)

-243

Question 8 (2.5 points)

Solve: 4x+3>5x−9{“version”:”1.1″,”math”:”4x+3>5x–9“}

Question 8 options:

a)

{x|x<12}{“version”:”1.1″,”math”:”{x|x<12}“}

b)

{x|x<6}{“version”:”1.1″,”math”:”{x|x<6}“}

c)

{x|x>12}{“version”:”1.1″,”math”:”{x|x>12}“}

d)

{x|x>6}{“version”:”1.1″,”math”:”{x|x>6}“}

Question 9 (2.5 points)

Solve: −34x=−12{“version”:”1.1″,”math”:”–34x=–12“}

Question 9 options:

a)

16

b)

9

c)

-9

d)

-16

Question 10 (2.5 points)

What number is 12% of 75?

Question 10 options:

a)

12

b)

900

c)

9

d)

625

Question 11 (2.5 points)

Solve: −3y≤15{“version”:”1.1″,”math”:”–3y≤15“}

Question 11 options:

a)

{y|y≥−5}{“version”:”1.1″,”math”:”{y|y≥–5}“}

b)

{y|y≥−45}{“version”:”1.1″,”math”:”{y|y≥–45}“}

c)

{y|y≤18}{“version”:”1.1″,”math”:”{y|y≤18}“}

d)

{y|y≤−5}{“version”:”1.1″,”math”:”{y|y≤–5}“}

Question 12 (2.5 points)

Solve: y=53−x for x{“version”:”1.1″,”math”:”y=53–x for x“}

Question 12 options:

a)

x=3y−5y{“version”:”1.1″,”math”:”x=3y–5y“}

b)

x=−2{“version”:”1.1″,”math”:”x=–2“}

c)

x=3y−5{“version”:”1.1″,”math”:”x=3y–5“}

d)

x=5y−3{“version”:”1.1″,”math”:”x=5y–3“}

Question 13 (2.5 points)

Solve: 0.2p+2.4=1.6p−1.2+0.6p{“version”:”1.1″,”math”:”0.2p+2.4=1.6p–1.2+0.6p“}

Question 13 options:

a)

1.5

b)

0.6

c)

1.8

d)

0.5¯{“version”:”1.1″,”math”:”0.5¯“}

Question 14 (2.5 points)

Solve: 3−2x<15{“version”:”1.1″,”math”:”3–2x<15“}

Question 14 options:

a)

{x|x>6}{“version”:”1.1″,”math”:”{x|x>6}“}

b)

{x|x>−6}{“version”:”1.1″,”math”:”{x|x>–6}“}

c)

{x|x<−6}{“version”:”1.1″,”math”:”{x|x<–6}“}

d)

{x|x<6}{“version”:”1.1″,”math”:”{x|x<6}“}

Question 15 (2.5 points)

The amount of apples Blake harvested went from 500 lb in 2009 to 425 lb in 2010. Find the percent decrease.

Question 15 options:

a)

18%

b)

15%

c)

5%

d)

25%

Question 16 (2.5 points)

Find the mean of 2, 6, 8, 9, 2, 5, 12

Question 16 options:

a)

2

b)

9

c)

6.3

d)

7.5

Question 17 (2.5 points)

Solve: 5−y=12{“version”:”1.1″,”math”:”5–y=12“}

Question 17 options:

a)

-7

b)

7

c)

-17

d)

−125{“version”:”1.1″,”math”:”–125“}

Question 18 (2.5 points)

Solve: p=ax+by+c{“version”:”1.1″,”math”:”p=ax+by+c“} for b{“version”:”1.1″,”math”:”b“}

Question 18 options:

a)

b=az+c−py{“version”:”1.1″,”math”:”b=az+c–py“}

b)

b=y(p−ax−c){“version”:”1.1″,”math”:”b=y(p–ax–c)“}

c)

b=pb−ax−c{“version”:”1.1″,”math”:”b=pb–ax–c“}

d)

b=p−ax−cy{“version”:”1.1″,”math”:”b=p–ax–cy“}

Question 19 (2.5 points)

The population increased from 1200 to 1464. What was the percent increase?

Question 19 options:

a)

18%

b)

26%

c)

22%

d)

5%

Question 20 (2.5 points)

Solve: 2t+8=3t−11{“version”:”1.1″,”math”:”2t+8=3t–11“}

Question 20 options:

a)

19

b)

−195{“version”:”1.1″,”math”:”–195“}

c)

3

d)

-19

Question 21 (2.5 points)

Money is invested in a savings account at 3.4% simple interest. After 1 year, there is $1695.76 in the account. How much was originally invested?

Question 21 options:

a)

$1753.42

b)

$1638.10

c)

$576.56

d)

$1640.00

Question 22 (2.5 points)

Solve: −38x=24{“version”:”1.1″,”math”:”–38x=24“}

Question 22 options:

a)

64

b)

-9

c)

9

d)

-64

Question 23 (2.5 points)

Which of the following numbers is included in the graph of 3x+8>−2x−16{“version”:”1.1″,”math”:”3x+8>–2x–16“}

Question 23 options:

a)

-5

b)

-6

c)

-4

d)

-20

Question 24 (2.5 points)

Solve: 3−y=11{“version”:”1.1″,”math”:”3–y=11“}

Question 24 options:

a)

-8

b)

14

c)

-14

d)

8

Question 25 (2.5 points)

Solve: 3x+4(3+2x)=11x−12{“version”:”1.1″,”math”:”3x+4(3+2x)=11x–12“}

Question 25 options:

a)

All real numbers

b)

4

c)

196{“version”:”1.1″,”math”:”196“}

d)

No solution

Question 26 (2.5 points)

If you double a number and then add 8, you get fourteen more than the original number. What is the original number?

Question 26 options:

a)

11

b)

3

c)

12

d)

6

Question 27 (2.5 points)

Solve: c−8=16{“version”:”1.1″,”math”:”c–8=16“}

Question 27 options:

a)

24

b)

8

c)

-8

d)

-32

Question 28 (2.5 points)

Calculate 2 – (-1)

Question 28 options:

a)

3

b)

-2

c)

-3

d)

1

Question 29 (2.5 points)

Convert14{“version”:”1.1″,”math”:”14“} into a percent

Question 29 options:

a)

.25%

b)

2.5%

c)

1.4%

d)

25%

Question 30 (2.5 points)

The height of a triangle is 90 cm. What lengths of the base will make the area at most 500 cm2{“version”:”1.1″,”math”:”http://www.w3.org/1998/Math/MathML”> actiontype=”argument”>2“}?

Question 30 options:

a)

{b|b≤11.1¯ cm}{“version”:”1.1″,”math”:”{b|b≤11.1¯ cm}“}

b)

{b|b<11.1¯ cm}{“version”:”1.1″,”math”:”{b|b<11.1¯ cm}“}

c)

{b|b≥5.5¯ cm}{“version”:”1.1″,”math”:”{b|b≥5.5¯ cm}“}

d)

{b|b≥11.1¯ cm}{“version”:”1.1″,”math”:”{b|b≥11.1¯ cm}“}

Question 31 (2.5 points)

Find the mean of 2,6,8,9,2,5,12

Question 31 options:

a)

2

b)

9

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Explanation & Answer:

40 Questions

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Explanation & Answer

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