Express the number in scientific notation.91,000,000
A. 9.1 × 108
B. 9.1 × 10-7
C. 9.1 × 107
D. 9.1 × 10-8
Answer: C
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Solve the problem.A rectangular plot has area 126 yd2 with a perimeter of 46 yd. What is the length of the longest side?
A. 14 yd B. 12 yd C. 16 yd D. 13 yd
Solve the problem.Charles Williams owns Lake Shore Collectibles, a small shop with three employees. For one payroll period the total withholding tax for all employees was $1793. The total employee's Social Security tax was $673. The total employee's Medicare tax was $157. How much tax must Charles deposit as the employer's share of Social Security tax and Medicare tax? What is the total tax that must be deposited?
A. Employer's share of Social Security and Medicare tax = $830 Employer's tax deposit = $3277 B. Employer's share of Social Security and Medicare tax = $811 Employer's tax deposit = $1641 C. Employer's share of Social Security and Medicare tax = $830 Employer's tax deposit = $3453 D. Employer's share of Social Security and Medicare tax = $654 Employer's tax deposit = $3453
Simplify. Assume that any variables are positive.
A. 
B. 
C. 
D. 
Find the exact value by using a sum or difference identity.cos 285°
A. - 
B. 
C. -
(
+ 1)
D. -
(
- 1)