Graph the system of inequalities.x + 2y ? -4x - y ? 5
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem. Round your answer to the nearest hundredth.Determine the height of a tower if it casts a shadow 42 ft long on level ground when the angle of elevation of the sun is 20°.
A. 39.47 ft B. 122.80 ft C. 15.29 ft D. 44.70 ft
Mathematics
Find the product. Assume all variables have non-negative values.(
+ 
)(
- 
)
A. 3 - 2
B. 3z
C. 3 - z
D. 3 - 2
Mathematics
Translate to an equation. Do not solve.What percent of 30 is 5?
A. p ? 30% = 5 B. p ? 30 = 5 C. p = 30 ÷ 5 D. p = 30 ? 5
Mathematics
Solve the system of linear equations by the method of elimination. Find (x, y) and check your solution algebraically.
a. (4, 1)
b. (4, –4)
?c. (–4, –1)
?d. (4, –1)
Mathematics