In ΔUVW, the measure of ∠W=90°, WU = 8.2 feet, and UV = 9.6 feet. Find the measure of ∠U to the nearest tenth of a degree.

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =