For the given equation, evaluate the discriminant. How many real solutions are there?
x2 + 
x + 5 = 0
A. - 
; 0
B. 
; two
C. 0; one
D. - 
; none
Answer: D
Mathematics
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Use the pattern in the sequence or chart to find the missing number.3, 6, 12, 24, 
A. 48 B. 27 C. 52 D. 54
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Solve.An arrow is fired into the air with an initial velocity of 96 feet per second. The height in feet of the arrow t seconds after it was shot into the air is given by the function 
Find the maximum height of the arrow.
A. 240 ft B. 48 ft C. 432 ft D. 144 ft
Mathematics
Solve the inequality, then graph the solution.-0.6z > - 4.8
A. x < 8
B. x < -8
C. x > -8
D. x > 8
Mathematics