For the given functions f and g , find the indicated composition.f(x) = 4x2 + 5x + 7,g(x) = 5x - 6(g?f)(x)
A. 20x2 + 25x + 29
B. 4x2 + 5x + 1
C. 4x2 + 25x + 29
D. 20x2 + 25x + 41
Answer: A
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Write the number in scientific notation.619.687
A. 6.19687 × 10-1 B. 6.19687 × 101 C. 6.19687 × 102 D. 6.19687 × 10-2
Find the exact value of y, or state that y is undefined.y = cot-1 
A. 
B. 
C. 0
D. 
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Write a quadratic equation in standard form with the given solution set.{-5
, 5
}
A. x2 - 10
x + 250 = 0
B. x2 + 10
x - 250 = 0
C. x2 - 250 = 0
D. x2 + 250 = 0