Perform the indicated operation.(-2m2 - 4m - 7) - (2m2 + 4m + 2)
A. -5
B. -4m2 - 8m - 9
C. -4m2 + 8m + 9
D. -4m2 - 5
Answer: B
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Suppose that you have already proved that “The diagonals of an isosceles trapezoid are congruent.” Use this theorem to prove that “A pair of base angles of an isosceles trapezoid are congruent.” Supply missing statements and missing reasons for the proof.Given: Trapezoid ABCD; 
and 
Prove: 
S1. R1.S2. Draw 
and 
R2.S3. 
R3.S4. R4. IdentityS5. 
R5.S6. 
R6.
What will be an ideal response?
Find the limit.
2 sin 
A. 0 B. 1 C. 4 D. -1
Solve the problem.The barometric pressure p at an altitude of h miles above sea level satisfies the differential equation 
If the pressure at sea level is 29.92 inches of mercury, find the barometric pressure at 16,000 ft.
A. 54.85 in. B. 16.32 in. C. 1.22 in. D. 8.16 in.
Simplify the expression by performing the indicated operations.
? 
- 2
A. -7
B. 9 - 10
C. -2
D. 6 - 10