UPDATE (VERIFIED AND DETAILED QUESTIONS AND
ANSWERS)/GRADED A+
which of the following expressions represents 237.45 written in expanded form in terms of the sums of
powers of tens?
a. 2 x 10^2 + 3 x 10^1 + 7 x 10^0 + 4 x 10^1 + 5 x 10^-2
b. 237 x 100 + 45 x 1/1000
c. 2 x 10^2 + 3 x 10^1 + 7 x 10^0 - 4 x 10^1 -5 x 10^2
c. 2 x 10^2 + 3 x 10^1 + 7 x 10^0 - 4 x 10^1 - 5 x 1-^2
d. 200 + 30 + 7 + 0.4 + 0.05 (correct answer)2 x 10^2 + 3 x 10^1 + 7 x 10^0 + 4 x 10^1 + 5 x 10^-2
which of the following percents is equivalent to 0.78?
a. 78%
b. 7.8%
c. 780%
d. 0.0078% (correct answer)78%
which of the following is the product of multiplying twenty-seven and twenty-five hundredths by nine
and twenty-seven hundredths?
a. 252.6075
b. 23,425,290,000
c. 189.7845
d. 241.5075 (correct answer)252.6075
which of the following places the given values in order from least to greatest?
, 3/4, 5/8, 2/3, 4/7, 2/5
a. 2/3, 2/5, 3/4, 4/7, 5/8
b. 2/5, 4/7, 5/8, 2/3, 3/4
c. 2/3, 3/4, 2/5, 4/7, 5/8
d. 3/4, 2/3, 5/8, 4/7, 2/5 (correct answer)2/5, 4/7, 5/8, 2/3, 3/4
what is the least common denominator of the following fractions?
2/9, 1/2, 2/3,
a. 54
b. 9
c. 18
d. 27 (correct answer)18
3x - {2x - [x - (5x + 6)]} = x - 2
a. -1
b. 2
c. 1
d. -2 (correct answer)-1
17 - 6x ≥ 4x - 10
a. x ≥ 27/10
b. x ≤ -27/10
c. x ≤ -7/10
d. x ≤ 27/10 (correct answer)x ≤ 27/10