Simplify the expression.-6(2x - 5) - 4x + 7
A. -16x + 37
B. -16x - 23
C. 8x + 37
D. 16x + 37
Answer: A
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Solve.Two vehicles leave the same corner at the same time and travel at a right angle to each other. One vehicle travels 
an hour faster than the other. If after one hour the vehicles are 
apart, find the rate of each vehicle.
A. Slower vehicle: -16 km/hr; faster vehicle: -12 km/hr B. Slower vehicle: 16 km/hr; faster vehicle: 20 km/hr C. Slower vehicle: 8 km/hr; faster vehicle: 12 km/hr D. Slower vehicle: 12 km/hr; faster vehicle: 16 km/hr
Use the product-to-sum and sum-to-product identities to prove the stated identity.tan 
= 
What will be an ideal response?
Solve the proportion for the given variable.
= 
A. x = 7 B. x = 28 C. x = 4 D. x = 6
Simplify the expression. Assume that all variables represent positive real numbers.-321/5
A. 16 B. -8 C. -2 D. 32