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what is the value of |-2x-5|-|-4+8| when x=7
if m-3=64, then 8m=
SAT/ACT math prep
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Answers
1
if m
-3
=64, then 8m=
32
-192
2
1/4
2
what is the value of |-2x-5|-|-4+8| when x=7
7
15
-4
-12
3
suppose that m is an even integer and n is an odd integer. which of the following expressions must be an odd integer
mn
3(mn)
2(m+n)+1
2(m+n)
4
what is the value of \sqrt{\left(x+(-x\right)^2} when x=-1
\sqrt{2}
1
0
-1
5
which of the following is equivalent to i
2
, where i is the imaginary number
1
0
\sqrt{-1}
-1
6
for positive integers x and y, x+y =21. what is the smallest possible value of xy?
38
20
54
10
7
which of the following is equivalent to \left(\frac{1}{4m^3}\right)^{-2} for any real number m?
\frac{1}{16m^6}
8m6
16m6
\frac{1}{8m^6}
8
if 2^{-m}=\frac{1}{8}, what is the value of m
-4
3
4
-3
9
-2 | -1+5|
-6
-8
2
6
10
what is the value of \sqrt{48}-\sqrt{27}
\sqrt{2}
\sqrt{3}
0
\sqrt{21}
11
which of the following is a rational number
\frac{\sqrt{100}}{5}
\sqrt{5}
\frac{\sqrt{2}}{2}
\sqrt{3}
12
for any real numbers a and b, (10a
2
)(5ab)(2ab
4
)
100a4b5
100a2b4
17a4b4
17a2b4
13
What is a common multiple of 12, 20, and 40
40
480
60
120
14
For a real number m, (2m
3
)
4
16m12
2m7
8m7
4m5
15
if 3(m + n) is even, then which of the following must be even
m+n
3m
n
m
