Evaluate: -7 + 14
A) 21
B) 7
C) –21
D) –7
E) 14
B) 7
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Solve the problem.A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of 
What dimensions yield the minimum surface area? Round to the nearest tenth, if necessary.
A. 10.6 ft × 10.6 ft × 0.5 ft B. 3.8 ft × 3.8 ft × 3.8 ft C. 5.5 ft × 5.5 ft × 1.8 ft D. 4.8 ft × 4.8 ft × 2.4 ft
Solve the problem.A building 250 feet tall casts a 90 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
A. 70° B. 20° C. 69° D. 21°
Identify whether the equation, when graphed, will be a parabola, circle, ellipse, or hyperbola.x2 = 4y2 + 4
A. ellipse B. circle C. hyperbola D. parabola
Find the composite function for the given functions and state the domain. h ? g ? f for f(x) = 
, g(x) = 
, and h(x) = 4x+ 8
A. 4
+ 8
B. 
C. 
+ 8
D. 
+ 2