Answer the question.The following table gives the electricity usage (in kilowatt hours) for the Peters family for six months.
What is the average electricity usage for the months February through June?
A. 971.31 kwh
B. 972.68 kwh
C. 970.79 kwh
D. 974.7 kwh
Answer: B
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A hypothesis test is to be performed. State the null and alternative hypotheses.An environmental group believes that the health of the residents of Castletown is adversely affected by the oil refinery in their town. It believes that in Castletown, the proportion of children who suffer from asthma is higher than the nationwide proportion of 9.1%.
A. Null hypothesis: proportion of Castletown children with asthma < 9.1% Alternative hypothesis: proportion of Castletown children with asthma > 9.1% B. Null hypothesis: proportion of Castletown children with asthma = 9.1% Alternative hypothesis: proportion of Castletown children with asthma ? 9.1% C. Null hypothesis: proportion of Castletown children with asthma = 9.1% Alternative hypothesis: proportion of Castletown children with asthma > 9.1% D. Null hypothesis: proportion of Castletown children with asthma > 9.1% Alternative hypothesis: proportion of Castletown children with asthma = 9.1%
Express in standard notation.8.033 × 10-3
A. 8033 B. 0.008033 C. 0.08033 D. 0.0008033
Solve the problem. Round to the nearest cent unless otherwise noted.Mr. Swanson is ready to retire and play golf every day. He has accumulated $250,000 in savings, and will deposit this amount in a 25-year payout annuity with an annual interest rate of 5.4%. Calculate the following:a. What is the monthly payment received from the annuity?b. What is the total amount received from the annuity? c. What is the total interest earned from the annuity?
A. a. $5563.17 b. $417,237.87 c. $167,237.87 B. a. $2189.27 b. $656,780.31 c. $406,780.31 C. a. $1520.32 b. $456,097.44 c. $206,097.44 D. a. $1266.94 b. $380,081.20 c. $130,081.20
Solve the problem.T and T' are similar triangles. Suppose that the base of T' is 5 times longer than the base of T. If the area of T' is 100 sq. in., what is the area of T?
A. 20 sq. in. B. 500 sq. in. C. 4 sq. in. D. 5 sq. in. E. none of these