Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.Find the cost to asphalt a circular racetrack if asphalt costs $90 per 100 ft2. (Use 3.14 for ?. Round to the nearest dollar.) r = 85 ft R = 100 ft
A. $28,260
B. $2543
C. $20,418
D. $7842
Answer: D
Mathematics
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Divide, if possible. If the quotient is undefined, then state this.
A. 0 B. 1 C. 11 D. Undefined
Mathematics
Identify the number represented on the abacus.
A. 631 B. 630 C. 635 D. 639
Mathematics
Solve each problem.The height in meters of women of a certain tribe is approximated by 
where t is the woman's age in years and 
Estimate the height (to the nearest hundredth) of a woman of the tribe 4 years of age. (Round to the nearest hundredth.)
A. 0.77 m B. 1.12 m C. 0.96 m D. 0.52 m
Mathematics
Establish the identity.(1 - cos x)(1 + cos x) = sin2x
What will be an ideal response?
Mathematics