, 22.04.2020 22:48 andrewweltz421

# If Coach White coaches, the probability of being goalie is 0.55. If Coach Jackson coaches, the probability of being goalie is 0.35. If Coach White is the coach 70% of the time, what is the probability that Mitchell will be a goalie today?

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49 also, as per the statement: jennifer must spend$250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, \$137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

1 number

explanation

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.

Is it multiple choice

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