Write the decimal in words.31.7
A. Thirty-one and seven hundredths
B. Thirty-one and seven thousandths
C. Thirty-one and seven tenths
D. Thirty-one and seven millionths
Answer: C
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Factor out the negative sign with the GCF.-18a3 + 8a
A. -2a(9a2 + 4) B. -2(9a3 + 4a) C. -2a(9a2 - 4) D. -2a2(9a - 4)
Write the equation of the circle with the given center and radius.center (3, 2), radius 12
A. (x + 2)2 + (y + 3)2 = 12 B. (x + 3)2 + (y + 2)2 = 144 C. (x - 2)2 + (y - 3)2 = 12 D. (x - 3)2 + (y - 2)2 = 144
Solve the problem. Bethany decides to knit scarves to sell at her town's monthly craft show and wants to know how much money she will make. The cost of materials is $5 per scarf, and she plans to charge $15 for them. Using P for her profit and N for the number of scarves, write an equation for her monthly profit and graph it, assuming she does not sell more than 25 scarves in a month.Monthly Profit
A. P = $10N
| Monthly Profit |
B. P = $15N - $5
| Monthly Profit |
C. P = $15N - $5
| Monthly Profit |
D. P = $10N
| Monthly Profit |
Use ZERO (or ROOT) to approximate the positive x-intercepts of the equation. Round to two decimal places.y = x3 + 3x2 - 5x - 7
A. 1.91 B. 1.76 C. 3.83 D. 1.83