Solve the problem.Frank can type a report in 6 hours. James takes 4 hours to type it. How long will it take the two of them typing together?
A. 
hr
B. 
hr
C. 12 hr
D. 
hr
Answer: A
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Provide the proper response.It can be shown that a hyperbola with center at the origin, foci at src="https://sciemce.com/media/4/ppg__10701191713__f1q41g6.jpg" alt="" style="vertical-align: -4.0px;" /> and absolute value of the distances from any point of the hyperbola to the two foci equal to 4.
and 
and equation 
has equation 
Use this result to find an equation of a hyperbola with center at the origin, foci at 
and
A. 
- 
= 1
B. 
- 
= 1
C. x2 - y2 = 4
D. 
- 
= 1
Evaluate using a number line.-6 + (-7) 
A. 1 B. -13 C. -1 D. 13
An electronics store manager stocks from 30 to 40 IBM-compatible computers and from 40 to 50 Macintosh computers. There is room in the store to stock up to 80 computers. The manager receives a commission of $50 on the sale of each IBM-compatible computer and $30 on the sale of each Macintosh computer. If the manager can sell all of the computers, find the maximum commission. Inventory IBM MacintoshMinimum 30 40Maximum 40 50Commission $50 $30
A. $3,300 B. $3,500 C. $2,800 D. $3,200 E. $3,400
Factor completely. State that the polynomial is prime if it cannot be factored.x2 - 14xy + 33y2
A. (x + 3y)(x - 11y) B. prime C. (x - 3y)(x - 11y) D. (x - 33y)(x - y)