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An environmental agency worries that many cars may be violating clean air emissions standards. The agency hopes to check a sample of vehicles in order to estimate that percentage with a margin of error of 4% and 95% confidence. To gauge the size of the problem, the agency first picks 50 cars and finds 11 with faulty emissions systems. How many should be samples for a full investigation?
The agency should sample at least ___ vehicles. (Round up to nearest whole number)
For the quadratic equation. Use the technique Completing the Square to Determine the solutions (roots) of the equation
Simplify the formula for given variable
Plotting points & then sketching the curves
Company reports the following operating results for the month of August: Sales $350,000 (units 5,000); variable costs $210,000; and fixed costs $90,000. Management is considering the following independent courses of action to increase net income.
Estimate the slope.
Find the vertex of the function
Factor of the following polynomial
Find the LCM.
In one year 5,293 delivers were made. One delivery takes 30 minutes. If this task was eliminated how much time would be saved per week?
Determine a quadratic regression function that represents the distance the ball will travel in terms of its speed when it is hit at a 40 degree angle.
Simplify the inequality
Factor out all common monomials first in order to factor the following trinomial expression:
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