In ΔDEF, the measure of ∠F=90°, DE = 70 feet, and EF = 57 feet. Find the measure of ∠D to the nearest tenth of a degree.

Solve the equation. (4n + 5) (3n - 7) = 0 (5/4), (7/3) (-5/4), (7/3) (5/4), (-7/3) (-5/4), (-7/3)

There are 27 red or blue marbles in a bag. The number of red marbles is 5 less than 3 times the number of blue marbles. How many red and blue marbles are in the bag?

Which statements describe the solutions to the inequality x<-20 Check all that apply. There are infinite solutions. Each solution is negative. Each solution is positive. The solutions are both positive and negative.

What is the dimention of 2,5in, 4in, and v=60in3

How to change an improper fraction to a mixed number?

What is the value of k in the product of powers below? 10 Superscript negative 3 Baseline times 10 times 10 Superscript k Baseline = 10 Superscript negative 3 Baseline = StartFraction 1 Over 10 cubed EndFraction

There are 15 marbles in a bag. 7 are red, the rest are a variety of colors. You want the chance of getting red to be at least 50%. How many red do you need to add?

Write 450 miles per 18 gallons as a unit rate (miles per gallon)

If 15 hats cost $120 and all the hats all cost the same amount, what is the price of each hat?

Questions 6 to 10 are related. based on a random sample of n=15 observations, we have obtained a sample mean of x (bar) = 1050. the goal is to test: h (0) : μ≤1000 and h (a) : μ>1000 assume that x is normally distributed with σ=150.