Add or subtract as indicated. Simplify if necessary.
+ 
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The batting percentages of some of the players on the company softball team are 
/> and 
What is the mean batting percentage of these players? Round to the nearest thousandth.
A. 0.242
B. 0.266
C. 0.311
D. 0.280
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log19
A. 
log195 - 2 log19y - log19x
B. 
log195 - 2 log19y - 2 log19x
C. log195 - log19y - log19x
D. 6 log195 - 2 log19y - log196
Tell whether correlation is being used correctly. Identify any statistical errors.A high school student wonders if there is a correlation between the average life span of an animal and the number of letters in its name. She gathers the following data:
She obtains a high correlation coefficient of 0.98 and concludes that using a linear model, the number of letters in an animal's name can be used to predict its average life span.
What will be an ideal response?
State an explicit rule for the nth term of the recursively-defined sequence.an = 8 ? an-1; a1 = 5
A. an = 8 ? 5n-1 B. an = 8 ? 5n C. an = 5 ? 8n D. an = 5 ? 8n-1