Solve the problem.The midterm test scores for the seventh-period typing class are listed below. Make a stem-and-leaf plot of these data (without split stems). 85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79
What will be an ideal response?
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Find the Cartesian product or cardinal number as requested.A = {i, a}B = {t, d, m}Find A × B.
A. {(i, t), (a, t), (i, d), (a, d)} B. {(i, t), (i, d), (i, m), (a, t), (a, d), (a, m)} C. {(t, i), (t, a), (d, i), (d, a), (m, i), (m, a)} D. {(i, t), (t, a), (i, d), (d, a), (i, m), (m, a)}
Explain the mistake, then simplify correctly.
= 4
What will be an ideal response?
Perform the division.
A. m2 + 3m + 4 B. m2 + 2m + 4 C. 4m2 + 2m + 2 D. 4m2 - 2m + 2
Consider a person who invests in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are 6.5% on AAA bonds, 7% on A bonds, and 9% on B bonds. The person invests twice as much in B bonds as in A bonds. Let x, y and z represent the amounts invested in AAA, A, and B bonds, respectively.
Total Investment
Annual Return
$12,000
890
Use the inverse of the coefficient matrix of this system to find the amount invested in each type of bond.
A. $7,000 in AAA-rated bonds$2,000 in A-rated bonds$4,000 in B-rated bonds B. $5,000 in AAA-rated bonds$7,000 in A-rated bonds$3,000 in B-rated bonds C. $5,000 in AAA-rated bonds$6,000 in A-rated bonds$4,000 in B-rated bonds D. $3,000 in AAA-rated bonds $2,000 in A-rated bonds$6,000 in B-rated bonds E. $6,000 in AAA-rated bonds$2,000 in A-rated bonds$4,000 in B-rated bonds