Use an integer to express the number.Mr. Voss increased his speed by 15 miles per hour.
A. 15
B. -15
Answer: A
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Find the center, radius, and intercepts of the circle.x2 + y2 - 2x + 4y - 7 = 0
A. (h, k) = (1, -2), r = 2
x-int: x = 1 ± 2
; y-int: y = -2 ± 
B. (h, k) = (-1, 2), r = 12
x-int: x = 1 + 2
; y-int: y = -2 + 
C. (h, k) = (-1, -2), r = 2
x-int: x = 1 + 2
; y-int: y = -2 + 
D. (h, k) = (1, -2), r = 2
x-int: x = -1 ± 2
; y-int: y =2 ± 
The graph of either a cubic or quartic polynomial f(x) with leading coefficient ±1 and integer zeros is shown. Write the complete factored form of f(x).
A. f(x) = (x - 4)(x + 1)(x + 3) B. f(x) = -(x + 4)(x - 1)(x - 3) C. f(x) = (x + 4)(x - 1)(x - 3) D. f(x) = 2(x - 4)(x + 1)(x + 3)
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?
Solve the problem.Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in 
. How long does it take each of them working alone?
A. Paul: 10 hr; Ron: 12 hr B. Paul: 9.1 hr; Ron: 11.1 hr C. Paul: 8 hr; Ron: 10 hr D. Paul: 8.3 hr; Ron: 10.3 hr