N a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are: 68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68. what is the mean?

If A is uniformly distributed over [-12,16], what is the probability that the roots of the equation x^2+Ax+A+3=0 are both real?

Ron Finley is a gardener who decided a few years ago to plant several gardens in South Central Los Angeles. He wants his next garden to be a rectangle where the length is three times the width.

Calcula: + (-4) + (1/3) + (√7) = me ayudan?

Test. what mean 7+8

If a circle has a diameter of (x+3) inches, what is its circumference? A. (x (Pi) + 3 (Pi)) inches B. (2x (Pi) + 6 (pi)) inches C. (x+3) (pi) inches/2 D. (xsquared+6x+9) inches

You board a Ferris wheel at ground level and travel to the very top, when it stops to allow more riders to get on. How many degrees has the Ferris wheel rotated?

A right triangle with congruent legs is always a 45-45-90 triangle? True or False?

What is the difference between a square and a rectangle? A) A square is a parallelogram and a rectangle is not. B) A square has 4 equal sides and a rectangle does not. C) A square has 4 right angles and a rectangle does not have to.

The value of y varies directly with x, and y = - 8 when x = 2. Find y when x = 3

L=3x+6 W=3x^2 what's the perimeter