Where did we get one?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°