
Alebra
Authored by Rowena Amarille
Mathematics
6th - 8th Grade
CCSS covered
Used 3+ times

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13 questions
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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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