Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.sec ? = 2.9
A. 70.0°
B. 71°
C. 71.0°
D. 70°
Answer: D
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City 1 has an initial population of 88.58 thousand. Each year we get next year's population by multiplying by 0.92.
?
City 2 has an initial population of 54.85 thousand. Each year we get next year's population by multiplying by 1.02.
?
?
A: Write a formula that gives the population 
, in thousands, of City 1 after t years.
?
B: Write a formula that gives the population 
, in thousands, of City 2 after t years.
?
C: Make a graph that shows the populations of both cities over the first 20 years.
?
D: When do the two cities have the same population? Round your answer to two decimal places.
What will be an ideal response?
Use scientific notation to solve the problem.A company produced 925,000 small appliances in one year and made a profit of $8,620,000. What was the profit on each appliance?
A. $1.07 x 10-1 B. $9.32 x 102 C. $1.07 D. $9.32
Find the magnitude and direction angle of the vector v. Round the direction angle to the nearest tenth of a degree when necessary.v = 5(cos 101°i + sin 101°j)
A. 25, 79°
B. 5, 101°
C. 5, 79°
D. 
, 101°
Factor.8z4 - 6z2 - 9
A. (2z4 + 3)(4z - 3) B. (4z4 + 3)(2z - 3) C. (4z2 + 3)(2z2 - 3) D. (2z2 + 3)(4z2 - 3)