Solve the problem.Find an equation for the level surface of the function f(x, y, z) = 
that passes through the point 
.
A. x2 + y2 + z2 = 13
B. x2 + y2 + z2 = 169
C. x + y + z = 13
D. x + y + z = ± 13
Answer: B
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Factor completely.8a4 - 50b2
A. 2(2a2 + 5b)(2a2 - 5b) B. 2(2a2 - 5b)2 C. Prime D. 2(2a2 + 5b)2
Solve the inequality and graph the solution.
? 20
A. 
B. 
C. 
D. 
Solve the problem.The acceleration due to gravity g (in meters per second per second) at a height h meters above sea level is given by 
where 6.374 × 106 is the radius of Earth in meters. Death Valley in California is 86 m below sea level.a) Find the value of g(h) at Death Valley to four decimal places.b) Compare the value in (a) to the value of g(h) at sea level.
What will be an ideal response?
The longer leg of a right triangle is 2 centimeters longer than twice its shorter leg. The hypotenuse is 1 centimeter longer than longer leg. Find the dimensions of the lengths of the triangle.
A. 3 cm, 4 cm, 5 cm B. 2 cm, 5 cm, 10 cm C. 10 cm, 17 cm, 18 cm D. 5 cm, 12 cm, 13 cm