Graph the polar equation.r = 7 cos 5?
A. 
B. 
C. 
D. 
Answer: A
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Solve.A total of 24 cu yd of concrete is required for pouring a foundation. The ratio of cement to sand to gravel for this application is 1:3:4, and the total amount of these components must be 
times the volume of concrete needed. Determine how many cubic yards of each component are needed.
A. 4.5 cu yd of cement, 13.5 cu yd sand, 18 cu yd gravel B. 4.0 cu yd of cement, 13.0 cu yd sand, 18.5 cu yd gravel C. 3.0 cu yd of cement, 12.0 cu yd sand, 16.5 cu yd gravel D. 3.5 cu yd of cement, 12.5 cu yd sand, 16.5 cu yd gravel
The following question refers to a country with five states. There are 240 seats in the legislature, and the populations of the states are given in the table below.
Using a divisor of D = 39,540, the modified quotas (to 3 decimal places) are
A. State A: 10.675; State B: 18.850; State C: 109.725; State D: 96.825; State E: 3.925. B. State A: 10.799; State B: 19.069; State C: 111.002; State D: 97.951; State E: 3.971. C. State A: 10.596; State B: 18.710; State C: 108.908; State D: 96.104; State E: 3.896. D. State A: 10.648; State B: 18.803; State C: 109.451; State D: 96.584; State E: 3.915. E. none of these
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9x
+ 5
)(9x
- 5
)
A. 486x2 - 25x
B. 81x
- 25
C. 486x2 - 90x
+ 25x
D. 81x
+ 45x
+ 25
The pictograph below shows the number of television sets sold during the year by each salesperson in a certain company. Use this information to answer the question.
(a) What is the number of T.V.'s sold by the salesperson with the third-highest number of T.V.'s?(b) What percentage of the total is this?
A.
| (a) 100 T.V.'s | (b) 25% |
B.
| (a) 90 T.V.'s | (b) 22.5% |
C.
| (a) 60 T.V.'s | (b) 15% |
D.
| (a) 70 T.V.'s | (b) 17.5% |