A random sample of n = 4 scores is obtained from a population with a mean of m = 80 and a standard deviation of s = 10. if the sample mean is m = 90, what is the z-score for the sample mean

The square of a negative number is 28 more than three times the negative number

What expression is equivalent to 4x/5-2x/3

Find the inverse of the function. f (x) = 7x + 2

Which of the following is true? O 3/8 > 37.5% > 0.375 O 9/11 > 0.81 > 80% O 34% > 3/2 > 0.33 O 1/12 > 1.12 > 12%

Use the diagram to solve. what is 135% of 280

Molly is making a sign in the shape of a trapezoid. One base is 18 inches and the other is 30 inches. How high must she make the sign so its area is 504 square inches?

While hiking, Sanjay went up 200 meters. If Sanjay started at 500 meters above sea level, which integers represents his elevation now?

Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 - 2 (7) (25) cos ___ = 242 A. 180° B. 90° C. 16° D. 74°

What is 8/9 as a percentage

A right triangle has one leg with a length of 10 m and another left with a length of 12 m. What is the length of the third side of the triangle? OA) 22 meters OB) 15.6 meters OC) 6.6 meters D) 2 meters