Divorce rates are typically higher for couples who marry in their teens. The graph shows the percentage of marriage ending in divorce by wife’s age at marriage. Use the information shown to solve Exercise 81 – 82 . Percentage of Marriages Ending in Divorce by Wife’s Age at Marriage a. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first five years? b. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first ten years? c. Find the average rate of change in the percentage of marriage ending in divorce between five and ten years of marriage in which in the wife is over age 25 when she marries.
Divorce rates are typically higher for couples who marry in their teens. The graph shows the percentage of marriage ending in divorce by wife’s age at marriage. Use the information shown to solve Exercise 81 – 82 . Percentage of Marriages Ending in Divorce by Wife’s Age at Marriage a. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first five years? b. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first ten years? c. Find the average rate of change in the percentage of marriage ending in divorce between five and ten years of marriage in which in the wife is over age 25 when she marries.
Solution Summary: The author explains how to determine the percentage of marriages in which the wife is over age 25 when she marries and end in divorce within the first five years.
Divorce rates are typically higher for couples who marry in their teens. The graph shows the percentage of marriage ending in divorce by wife’s age at marriage. Use the information shown to solveExercise 81– 82.
Percentage of Marriages Ending in Divorce by Wife’s Age at Marriage
a. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first five years?
b. What percentage of marriages in which the wife is over age 25 when she marries end in divorce within the first ten years?
c. Find the average rate of change in the percentage of marriage ending in divorce between five and ten years of marriage in which in the wife is over age 25 when she marries.
20
2. Let A =
= [
-2 0
1
3
]
and B =
2
3
-1 2
For each of the following, calculate the product or indicate why it is undefined:
(a) AB
(b) BA
Answer the number questions with the following answers
+/- 2 sqrt(2)
+/- i sqrt(6)
(-3 +/-3 i sqrt(3))/4
+/-1
+/- sqrt(6)
+/- 2/3 sqrt(3)
4
-3 +/- 3 i sqrt(3)
1
Matching 10 points
Factor and Solve
1)x3-216 0, x = {6,[B]}
2) 16x3 = 54 x-[3/2,[D]]
3)x4x2-42 0 x= [ +/-isqrt(7), [F] }
4)x+3-13-9x x=[+/-1.[H]]
5)x38x2+16x=0, x = {0,[K}}
6) 2x6-10x-48x2-0 x-[0, [M], +/-isqrt(3))
7) 3x+2x²-8 x = {+/-i sqrt(2), {Q}}
8) 5x³-3x²+32x=2x+18 x = {3/5, [S]}
[B]
[D]
[F]
[H]
[K]
[M]
[Q]
+/-2 sqrt(2)
+/- i sqrt(6)
(-3+/-3 i sqrt(3))/4
+/- 1
+/-sqrt(6)
+/- 2/3 sqrt(3)
4
-3 +/- 3 i sqrt(3)
[S]
Chapter 2 Solutions
Pearson eText Intermediate Algebra for College Students -- Instant Access (Pearson+)
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