Answer:
7) 8.9
8) 6.7
9) 12.2
10) 7.6
11) 7.3
12) 6.3
Step-by-step explanation:
Answer:
D. 8
Step-by-step explanation:
y varies jointly as x and z
y = k(xz)
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Find k, the constant of variation
y = 12 when x = -2 and z=3
12 = k(-2 * 3)
12 = k(-6)
k = -2
-------------------------
find y when x is 4 and z is -1
using k = -2
y = -2(4 * -1)
y = -2(-4)
y = 8
The answer is 1/q^30 because after simplifying, you can cancel out the p and then you get q^q-20 times q^-10 to get q^-30 which then equals 1/q^30
C. 52 cm , unknown sides are 3 and 7
