Solve.Claire has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum score she must receive on the fifth test to have an overall test score average of at least 87? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 85
B. 84
C. 83
D. 86
Answer: A
Mathematics
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Solve the problem.Jack is currently driving into a headwind (17% decrease). If his normal mileage is 21 mpg, what will his car's mileage be in the headwind? Round your answer to the nearest tenth.
A. 17.4 mpg B. 21 mpg C. 38 mpg D. 7.3 mpg
Mathematics
Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.3 + 
+ 
+ 
+ . . .
A. diverges
B. converges, 4
C. converges, 
D. converges, 
Mathematics
Fill in the blank with one of the words or phrases listed below.
The 6 above is called the 
.
A. quotient B. factor C. product D. sum
Mathematics
Evaluate the determinant.
A. 
B. 
C. - 
D. 
Mathematics