4a/b + 5b/a =
a. (4a + 5b)/ab
b. (4ab + 5b)/ab
c. (4a2 + 5b2)/ab
d. 9a2b2/ab
e. 9ab
c. (4a2 + 5b2)/ab
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Find the second derivative.s = 
+ 7
A. 14t + 7 B. 7t C. 14t D. 7t2
Write a sentence that expresses the relationship in the formula, using the language of variation or proportion.f-stop = 
, where f-stop is camera setting with a lens with focal length f and diaphragm opening D
What will be an ideal response?
Write the whole number in word form.135,060
A. Thirteen thousand, five hundred six B. One hundred thirty-five thousand, sixty C. Thirteen thousand, five hundred sixty D. One million, thirty-five thousand, sixty
Solve the triangle.a = 33.37, A = 20°20', B = 36°20'
(Round lengths to the nearest hundredth.)
A. b = 80.23, c = 56.90, C = 123°20' B. b = 80.23, c = 56.90, C = 124°20' C. b = 56.90, c = 80.23, C = 123°20' D. b = 56.90, c = 80.23, C = 124°20'