Evaluate.3x0 + 7, for x = -4
A. 19
B. -4
C. -5
D. 10
Answer: D
Mathematics
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Factor the polynomial completely.-2x2 - 10x - 12
A. prime B. -(2x + 3)(x + 4) C. -(2x + 4)(x + 3) D. -(2x - 4)(x - 3)
Mathematics
Find the domain and range of the relation.{(-67,-94), (-43,-68), (-15,-50), (25, -27), (85,44)}
A.
| D = {-94, -68, -50, -27}; R = {-67, -43, -15, 25} |
B. D = {-67, -43, -15, 25, 85}; R = {-94, -68, -50, -27, 44}
C. D = {-67, -43, -15, 25}; R = {-94, -68, -50, -27}
D.
| D = {-94, -68, -50, -27, 44}; R = {-67, -43, -15, 25, 85} |
Mathematics
Solve.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 94 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(94 - r)r3 + 
?r2
B. V(r) = ?(94 - r) + 
?r2
C. V(r) = ?(94 - r)r2 + 
?r3
D. V(r) = 94?r2 + 
?r3
Mathematics
Verify the identity.cos 4? = 2 cos2(2?) - 1
What will be an ideal response?
Mathematics