Use regression to solve the problem. Round numbers to the nearest hundredth.The first column shows the independent variable (x). The second column shows the dependent variable (y).
Find the linear regression model.
A. y = -9.03x + 95.19
B. y = -8.83x + 94.09
C. y = -9.23x + 95.39
D. y = -9.63x + 96.39
Answer: C
Mathematics
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Solve the equation.
- 
= 3
A. -72 B. 216 C. -216 D. 72
Mathematics
Complete numerical representations for the functions f and g are given. Evaluate the expression, if possible.(f?g)(3)
A. 10 B. 2 C. 6 D. Undefined
Mathematics
Solve the problem.An object is propelled vertically upward from the top of a 112-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 0.6 seconds C. 5.5 seconds D. 11.6 seconds
Mathematics
Find the partial derivative 
for the function 
.
?
A. 
?
B.
?
C.
?
D.
?
E.
?
Mathematics