Solve the problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
and when the
current flowing through the resistor is 
A. 14 V
B. 36 V
C. 63 V
D. 28 V
Answer: D
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Find the product.9x5(6x7 - 5)
A. 54x12 - 45x5 B. 54x12 - 5 C. 9x5 D. 54x7 - 45
Two magazines were introduced at the same time. Magazine 1 had an initial circulation of 200, and magazine 2 had an initial circulation of 700. The circulation A for magazine 1 satisfies the equation of change
.
The circulation B for magazine 2 satisfies the equation of change
.
Here t is measured in months. In the following questions, if your answer involves an exponential function write it using the alternative form for an exponential function.A: Find a formula that gives the circulation of magazine 1 after t months.B: Find a formula that gives the circulation of magazine 2 after t months.C: When will the circulations for the two magazines be the same? Round your answer to two decimal places.
What will be an ideal response?
Solve.A caterer must estimate the amount and cost of olives required for a wedding reception involving 175 guests. He estimates that he will need about 4 olives per person for flat breads, and 2 olives per person for cocktails. A supplier sells olives in jars containing 50 olives each for $3.00 per jar. How many jars will he need, and how much should he expect to pay for the olives?
A. 22 jars, $63.00 B. 21 jars, $63.00 C. 19 jars, $61.00 D. 20 jars, $60.00
Solve the triangle. Round the answer to the nearest tenth. 
A. a ? 3.7, B ? 80.5°, C ? 54.5° B. a ? 3.6, B ? 84.1°, C ? 50.9° C. a ? 3.6, B ? 82.1°, C ? 52.9° D. a ? 3.7, B ? 75.7°, C ? 59.3°