Find the sum of the arithmetic sequence.251, 249, 247, 245, ..., 233
A. 231
B. 2620
C. 2501
D. 2420
Answer: D
Mathematics
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Divide.-3.22 ÷ (-1000)
A. 0.000322 B. 3220 C. 0.00322 D. 322
Mathematics
Solve the problem.Joan can mow a 4-acre field in 5 hours. How long would it take her to mow a 3.6-acre field? (Round to the nearest hundredth.)
A. 6.50 hr B. 7.50 hr C. 4.50 hr D. 4.00 hr
Mathematics
Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.29, 24 , 19, 14, . . .
A. an = -5n + 29; a20 = -71 B. an = 5n - 29; a20 = 71 C. an = -5n + 34; a20 = -66 D. an = 5n - 34; a20 = 66
Mathematics
Provide an appropriate response.Use a calculator to find tan 1.4752. Round to four significant digits.
Fill in the blank(s) with the appropriate word(s).
Mathematics