If x is a real nunber, what is the real value of √x + √-x?

Mrs. Tiwari has two sons, one being exactly one year older than the other. Her age is equal to the sum of the squares of the ages of her sons. If 4 years hence her age becomes five times the age of the elder son then find the ages of her sons.

A+10=55 how do I solve this

What is the volume of a rectangular prism with the dimensions: base 5 2 cm, height 3 2 cm, and length 7 2 cm? A) 105 2 cm3 B) 105 4 cm3 C) 105 6 cm3 D) 105 8 cm3

What is the sum of the measures of the interior angles of a pentagon? Enter your answer in the box.

Use the given information to find the exact value of the expression. sin θ = 24/25, θ lies in quadrant II Find tan 2θ. A. - 526/527 B. 336/625 C. - 336/527 D. 336/527

What is the sum of the exterior angle measures of triangle xyz?

If P dollars is deposited in a savings account that pays interest at a rate of r % per year compounded continuously, find the balance after t years. (Round your answer to the nearest cent.) P = 100, r = 2 1/2, t = 12

Linda bought 56 books. Linda bought 8 times as many books as Pablo. let b be the number of books pablo bought

Which equation should be used to solve 81 + * = 108

Nadia started at 19.26 feet below sea level and then changed her altitude by climbing a total of 5,437.8 feet up from her initial position. What was Nadia's altitude at the end of her climb