The pressure P, in lb/ft2 , a liquid exerts at a given point on a submarine is directly proportional to the depth d, in feet, of the point below the surface of the liquid. When a given point is 3 ft below the surface of the liquid, the pressure is 187.5 lb/ft2 . Find an equation of variation expressing P as a function of d.
What will be an ideal response?
P = 62.5d
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 1, b = 2 B. a = -1, b = 2 C. a = 1, b = -2 D. Impossible
Determine if the following is a linear equation in one variable. If not, state why.13x - 18 = 4x - 72
A. It is not a linear equation in one variable because it is not an equation. B. It is a linear equation in one variable. C. It is not a linear equation in one variable because it has more than one variable. D. It is not a linear equation in one variable because 13x has an exponent other than 1.
Provide an appropriate response.A prime number has exactly 
factor(s).
A. 3 B. 1 C. 0 D. 2
Solve.With both the cold water and hot water faucets open, it takes 6 minutes to fill a sink. The cold water faucet alone takes 8 minutes to fill the sink. How long would it take to fill the sink using the hot water faucet alone?
A. 25 min
B. 19
min
C. 24 min
D. 24
min