Calculate the arc length of the indicated portion of the curve r(t).r(t) = (7 - 9t)i + (4 + 2t)j + (6t - 2)k, -2 ? t ? 10
A. 88
B. 132
C. 968
D. 1452
Answer: B
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Write the following as a rate in lowest terms.92 miles on 6 gallons
A. 
B. 
C. 
D. 
Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.g(x) = x2 - 2x + 2
A. 
Vertex (1, -1)
x-int = (0, 0), (2, 0);
y-int = (0, 0)
B. 
Vertex (-1, -1)
x-int = (-2, 0), (0, 0);
y-int = (0, 0)
C. 
Vertex (1, 1)
no x-intercepts;
y-int = (0, 2)
D. 
Vertex (-1, 1)
no x-intercepts;
y-int = (0, 2)
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
Factor mentally. Look for special products and greatest common factors.
One factor is
A) (x + 10)
B) (x + 20)
C) (x + 5)
D) (x - 10)
E) It cannot be factored.