Use a calculator to evaluate the expression. Round the answer to three decimal places.(-0.86)-3
A. -0.636
B. 0.636
C. -1.572
D. 1.572
Answer: C
Mathematics
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Solve the problem.The cross section of a hill can be approximated by y = 0.8x - 0.00008x3 from 
to 
The top of the hill is level. How high is the hill?
A. 
m
B. 
m
C. 
m
D. 
m
Mathematics
Translate the phrase to an algebraic expression.Seven divided by x
A. 7 - x
B. 7 + x
C. 7x
D. 
Mathematics
Solve the problem.Find the total area of the shaded rectangles.
A. 25x2 + 40x + 64 B. 5x2 + 40x + 64 C. 5x2 + 80x + 64 D. 25x2 + 80x + 64
Mathematics
Graph the parabola and label the vertex. Find the x-intercept.x = 
y2 + 1
A. vertex (1, 0), x-intercept (1, 0)
B. vertex (1, 0), x-intercept (1, 0)
C. vertex (- 1, 0), x-intercept (- 1, 0)
D. vertex (- 1, 0), x-intercept (- 1, 0)
Mathematics