346 algebra De mystif ieD
- The chair of a scholarship committee needs to decide how to invest a $200,000
gift to his college. This year, he expects a bond mutual fund to pay 5% and a
stock mutual fund to pay 721 %. The committee must fund scholarships totaling
$13,000 with this gift. How much can be invested in the bond fund and still have
enough to fund the scholarships?
a. at least $120,000
b. at most $120,000
C. at most $80,000
D. at least $80,000 - The interval notation for the inequality –≤ 17 <x is
a. (,- 17 ]
b. (,- 17 )
C. [,- 17 )
D. [,- 17 ] - The inequality -44 ≤ ≤ x is represented by
A.
C.B.
D.–4
–44
4–4
–44
4
FIgure 9-23- The interval notation for the inequality 32 < < x – is
a. (, 32 - )
b. (,- 23 )
C. 32 <<-x is not an interval of numbers. - The solution to 65 < x+ ≤ 11 6 is
a. [, 13 )
b. (, 13 ]
C. (, 13 )
D. [, 13 ] - The interval notation for x > 100 is
a. (,-∞ ) 100
b. (, 100 )-∞
C. (, 100 )∞
D. (,∞ ) 100