Use the commutative and/or associative laws to rewrite the given expression. Label each step with a reason.3 + (a + b) as b + (3 + a)
What will be an ideal response?
| 3 + (a + b) = (3 + a) + b | Using the associative law |
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Find the slope-intercept form of the line satisfying the given conditions.Parallel to the graph of y = 5x + 8; passing through (0, -7)
A. y = - 
x - 7
B. y = -5x - 7
C. y = 
x - 7
D. y = 5x - 7
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total cost function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total revenue function, R(x), is such that 
. Find R(x).
A. R(x) = 45x + 0.3x2 B. R(x) = 45x - 0.3x2 C. R(x) = 47x - 0.3x2 D. R(x) = 44x - 0.6x2
The quantity demanded x (in thousands of pounds) of a certain brand of butter per week is a continuous random variable with probability density function
?
?
What is the expected demand for this brand of butter per week?
?
__________ lb/wk
Fill in the blank(s) with the appropriate word(s).
Find the intercepts of the function f(x).f(x) = x3 - 8x2 - x + 8
A. x-intercepts: -1, -2, 4; y-intercept: 8 B. x-intercepts: 1, -1, 8; y-intercept: 8 C. x-intercepts: 1, -2, -4; y-intercept: 8 D. x-intercepts: 1, -1, -8; y-intercept: 8