Find the value of x - Use sin-1 ,cos-1 ,or tan-1

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4