Provide an appropriate response.5x2 - 7 = 3x. Is this a linear equation?
A. Yes
B. No
Answer: B
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Maude and Matilda each have a bank CD. Maude's is $1,500 larger than Matilda's, but Maude's interest rate is 2% less. Last year Maude received interest of $600, and Matilda received $490. Find the rate of interest for each CD. ?
A. Maude at 15%; Matilda at 17% B. Maude at 12%; Matilda at 19% C. Maude at 12%; Matilda at 15% D. Maude at 15%; Matilda at 19% E. Maude at 12%; Matilda at 14%
Use properties of logarithms to write the expression in terms of logarithms of x, y, z.loga(8x2yz6)
A. loga8 - 2 logax - logay - 6 logaz B. 12 loga8xyz C. 8 + logay + logaz6 D. loga8 + 2 logax + logay + 6 logaz
What is the identity matrix of size 3?
A. 
.
B. 
.
C. 
.
D. 
.
A model for the ability M of a child to memorize, measured on a scale from 0 to 10, is 
, 
where t is the child's age in years. Find the average value predicted by the model for a child's ability to memorize between second and third birthdays. Round your answer to three decimal places.
A. 5.992 B. 4.892 C. 6.792 D. 3.992 E. 4.692