Add.-19 + (-7)
A. 26
B. -26
C. -12
D. 12
Answer: B
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Use the following table of values to estimate the value of 
at 
. Round your answer to two decimal places.
?
x 2.7 5.5 7.2 8.6
6.6 5.7 2.1 1.4?
A. -2.12
B. -3.60
C. 0.00
D. None of the above
Answer the given question by setting up and solving the appropriate proportion. If necessary, round the answer to two decimal places.Given that 1 atm = 760 torr, what pressure in atmospheres is 640 torr?
A. 8.42 atm B. 0.84 atm C. 0.08 atm D. 1.19 atm
Solve the equation. Express radicals in simplest form.x2 + 4 = 68
A. ±7 B. 8 C. 34 D. ±8
Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 - 2x + 3
A. vertex (-1, -4)
intercepts (1, 0), (- 3, 0), (0, -3)
B. vertex (1, 4)
intercepts (-1, 0), (3, 0), (0, 3)
C. vertex (1, -4)
intercepts (-1, 0), (3, 0), (0, -3)
D. vertex (-1, 4)
intercepts (1, 0), (- 3, 0), (0, 3)