A sculpture is made of solid brass in the shape of a cone. The sculpture is 90 inches tall, and its base has a radius of 6 inches. If brass costs \( \$ 0.55 \) per cubic inch, how much did the brass for the sculpture cost? Use 3.14 for \( \pi \), and do not round your answer.

\( 16 \quad \) How long is an arc intercepted by the given central angle in a circle of radius 3.97 km ?

Use geometric formulas to find the unsigned area between the graph of \( y=f(x) \) and the \( x \)-axis over the indicated interval. \( f(x)=x+10 ;[2,11] \) The area between \( f(x) \) and the \( x \)-axis is (Type an exact answer, using \( \pi \) as needed.)

7. \( m \angle \mathrm{~A}=40^{\circ}, m \angle \mathrm{~B}=88^{\circ}, a=15 \) Find \( b \).

19. Бір тузу бойында 13 нукте болса, неше вектор жасауға болады? (A) 156 (B) 160 () 144 () 132

Examine the graph of the circle at right. Homework Help a. What is the equation of the circle? b. On graph paper, sketch the graph of \( x^{2}+y^{2}=81 \). What is the radius?