What is the equation of the parabola that has its vertex at (7,6) and contains the point (6,8)? Question 10 options: A) y = 2x2 – 28x + 52 B) y = x2 – 14x + 52 C) y = 2x2 – 28x + 104 D) y = 2x2 – 14x + 104

Can someone answer this question? : )

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.