Verify the identity: (a^2+b^2) (x^2+y^2) = (ax-by) ^2 + (bx+ay) ^2

A medium-sized has 70 calories. this is 10 calories less than 1/4 of the calories in an Old Westie Chocolate Bar. We need to find out how many calories are in the chocolate bar.

Two numbers total 14, and their differences is 12. find two numbers

What is 2+2 (im seeing how this app works)

Angle kl bisects angle vkw. Classify angle vkw if measure of angle lkw is 25°

Which is not an example of mutually exclusive events? (A) a light switch being in the on position or being in the off position (B) a six-sided die rolled once and rolling a 3 or rolling a 4 (C) owning a dog or owning a cat (D) a coin flipped once

A random sample of 101 lightning flashes in a certain region resulted in a sample average radar echo duration of 0.81 sec and a sample standard deviation of 0.45 sec.

Jeanette can walk 1 km in 11 minutes. At the same rate, how far can she walk in 55 minutes?

Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will have in each case. 75% syrup?

What is the equivalent expression for 2/3 - 4/5?

Which is true regarding the function? The function f (x) is given by the set of ordered pairs. { (8, - 3), (0, 4), (1,-5), (2, - 1), (-6, 10); f (-3) = 8 f (3) = 5 f (8) = 0 f (-6) = 10