Algebra
True or False
Square Roots Easy
Square Roots Moderate/Hard
Random
100
Write 230,000,000,000 in scientific notation.
2.3 × 1011
100
The inequality |x + 1| < 0 has no solution.
True
100
√9 =
3
100
√484 =
22
100
2x2+2x2+2-2x2 =
24
200
Evaluate: 30 - 12÷3×2
22
200
|x + 5| is always positive
FALSE ( = 0 for x = -5)
200
√169 =
13
200
√841 =
29
200
Noel read 90 minutes each day for 6 days. Tyra read 60 minutes each day for 8 days. What is the difference, in minutes, between the total amount of time Noel read and the total amount of time Tyra read?
a. 30 b. 40 c. 60 d. 80
300
Solve the equation: -5x + 20 = 25
-1
300
The distance between the points (0 , 0) and (5 , 0) in a rectangular system of axes is 5.
TRUE
300
√196 =
14
300
√5625 ?=
75
300
What is the prime factorization of 45?
a. 2(3) (cube the 3)x5 b. 3(2) (square the 2)x5 c. 5 (2) (square the 2)x3 d. 5 (2) (square the 2)x9
400
Solve the equation: 2x2(the second 2 is squared) - 32 = 0
-4 , 4
400
The reciprocal of 0 is equal to 0.
FALSE (the reciprocal of 0 is undefined)
400
√121 =
11
400
√9604 =
98
400
7+7÷7+7x7-7
56
500
Write as a mathematical inequality:"9 is less than the product of M and N"
9 < M × N
500
1 / (x - 4) = 1/x - 1/4.
FALSE (try x = 2)
500
√144 =
12
500
√6889 =
83
500
4× 4÷ 4× 4+ 4× 4– 4÷ 4 =
19
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