Simplify.2(5x + 1.5y) + 2.8(x + 3y)
A. 15.6x + 11.4y
B. 12.8x + 4.5y
C. 12.8x + 11.4y
D. 7.8x + 4.5y + 2
Answer: C
Mathematics
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Multiply.-5
(
- 3)
A. -5y - 15
B. -5y + 15
C. -5y + 
D. -5
+ 15y
Mathematics
Solve the problem.What is the minimum force required to prevent a ball weighing 29.8 lb from rolling down a ramp inclined 32.6° with the horizontal?
A. 8.1 lb B. 16.1 lb C. 25.1 lb D. 12.6 lb
Mathematics
Evaluate the expression and write in the form a + bi.
 figure 1.png)
Mathematics
Fill in the blank with one of the choices listed below. Some choices may be used more than once. 
To add or subtract decimals, write the decimals so that the decimal points line up 
.
A. right triangle B. standard form C. vertically D. circumference
Mathematics