Alebra

Alebra

6th - 8th Grade

13 Qs

quiz-placeholder

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Alebra

Alebra

Assessment

Quiz

Mathematics

6th - 8th Grade

Practice Problem

Hard

CCSS
HSA.APR.A.1, 7.NS.A.1C, 7.EE.B.4A

+6

Standards-aligned

Created by

Rowena Amarille

Used 3+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A

B

C

Answer explanation

The expression simplifies to -2 + 16 < 5, which is false. Therefore, -2 + 4^2 is greater than the fourth root of 200. Hence, the correct answer is C.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

123xwv - 123x^2 - 34w^2v^2 + 34wvx

123xwv + 123x^2 - 34w^2v^2 - 34wvx

123xwv - 123x^2 - 34w^2v^2 - 34wvx

123xwv - 123x^2 + 34w^2v^2 + 34wvx

Answer explanation

To find the product, distribute each term in the first polynomial by each term in the second polynomial. The correct choice is 123xwv - 123x^2 - 34w^2v^2 + 34wvx.

Tags

CCSS.HSA.APR.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

35.285

35.29

35.28

35.2851

Answer explanation

To find the sum, convert mixed number to decimal: 4\frac{23}{21} = 4 + \frac{23}{21} = 4 + 1.0952 = 5.0952. Then add: 5.0952 + 34.01 + 0.125 = 35.285.

Tags

CCSS.7.NS.A.1C

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5.523

3.523

6.523

4.523

Answer explanation

To solve the equation, we first simplify it to 2^x - 16 = 30. Then, 2^x = 46. Taking the log base 2 of both sides gives x = log2(46) ≈ 5.523.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

33

39

21

50

Answer explanation

Given x = 45 and x - 12 = y, substituting x=45 into the equation gives y = 45 - 12 = 33. Therefore, the value of y is 33.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

x = 100

x = 20

x = 5

x = 50

Answer explanation

To solve the equation, square both sides to get x = 100. Therefore, the correct answer is x = 100.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

50,000,000,000

60,000,000,000

70,000,000,000

90,000,000,000

Answer explanation

The correct answer is 50,000,000,000 because the cube root of 400 is 20, and 20 to the power of x equals 1,000,000,000,000.

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