Translate to a proportion. Do not solve.4.5 is what percent of 9.7?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
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Solve.Sand is poured carefully into a pile that forms a right circular cone as shown. The total surface area of the cone with slant height s and base radius r is given by the polynomial ?r2 + ?rs. Find an equivalent expression by factoring out a common factor.
A. ?r(?r + s) B. ?r(r + s) C. r(?r2 + ?s) D. ?rs(r + 1)
Solve the nonlinear system of equations for real solutions.
A. (-
, -3
)
B. ?
C. (
, 3
), (-
, 3
)
D. (
, 3
), (-
, 3
), (
, -3
), (-
, -3
)
Use the given function value(s), and trigonometric identities (including the cofunction identities), to find the indicated trigonometric functions.
?
?
?
A. 
and 
B. ?
and 
C. ?
and 
D. ?
and 
E. ?
and 
Use back-substitution to solve the system of linear equations.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?