Perform the indicated operations.(5x + 12y)2
A. 5x2 + 120xy + 144y2
B. 25x2 + 120xy + 144y2
C. 5x2 + 144y2
D. 25x2 + 144y2
Answer: B
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Complete the table and use it to calculate the indicated relative frequency. Round your answer to three decimal places if necessary.The following table displays the age, in years, and sex for the residents of a retirement home.Age (years)?60-69 70-79 Over 79Total Male17? 115? Female3?0?4? Total????What is the relative frequency for females in the age group 60-69?
A. 0.075 B. 0.1 C. 0.025 D. 0.15
Solve.The owner of Nuts2U Snack Shack mixes cashews worth $6.00 a pound with peanuts worth $2.20 a pound to get a half-pound mixed nut bag worth $1.90. How much of each kind of nut is included in the mixed bag?
A. 0.21 lb of cashews and 0.29 lb of peanuts B. 0.10 lb of cashews and 0.90 lb of peanuts C. 0.07 lb of cashews and 0.93 lb of peanuts D. 0.29 lb of cashews and 0.21 lb of peanuts
The height (in feet) attained by a rocket t sec into flight is given by the function
?
.
?
When is the rocket rising and when is it descending?
?
A. The rocket is rising on the interval 
and it is descending on the interval 
where t is some positive number more than 25.
B. The rocket is rising on the interval 
and it is descending on the interval 
where t is some positive number more than 41.
C. The rocket is rising on the interval 
and it is descending on the interval 
where t is some positive number more than 65.
D. The rocket is rising on the interval 
and it is descending on the interval 
where t is some positive number more than 28.
Solve the problem.To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 79 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)
A. 2 people B. 3160 people C. 316 people D. 31,646 people