Provide an appropriate response.A heat pump unit allows a 5% room temperature drop before it starts back up. If the room temperature is 72°, what temperature does it drop to before the heat pump kicks in?
A. 77°
B. 67°
C. 68.4°
D. 75.6°
Answer: C
Mathematics
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Translate the problem to a system of equations, then solve using matrices.A $114,000 trust is to be invested in bonds paying 6%, CDs paying 5%, and mortgages paying 9%. The sum of the bond and CD investment must equal the mortgage investment. To earn an $8360 annual income from the investments, how much should the bank invest in bonds?
A. $57,000 B. $19,000 C. $36,000 D. $38,000
Mathematics
Write the expression in condensed form.
logax + 4 loga y - 3 loga x
A. loga x3 y4
B. loga x5 y4
C. loga
D. loga 
y4
Mathematics
Solve.- 1 + 
= - 
+ 
A. - 
B. 25
C. 
D. -25
Mathematics
If lines m and n are parallel, find the measure of the indicated angle.
Find the measure of ?2.
A. 107° B. 17° C. 73° D. 7°
Mathematics