The terminal side of angle ? in standard position lies on the given line in the given quadrant. Find sin ?, cos ?, and tan ?.
; quadrant I
A. sin ? = 
;
cos ? = 
;
tan ? = 
B. sin ? = 
;
cos ? = 
;
tan ? = 
C. sin ? = 
;
cos ? = 
;
tan ? = 8
D. sin ? = 
;
cos ? = 
;
tan ? = 8
Answer: C
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The percent of mothers who work outside the home and have children younger than age 6 yr is approximated by the function 
where t is measured in years, with 
corresponding to the beginning of 1980.
?
Compute 
. Round your answer to six decimal places.
?
A. 
per year in the second power
B. 
per year in the second power
C. 
per year in the second power
D. 
per year in the second power
E. 
per year in the second power
Write the following as an equation, using x for the unknown number. Then solve.Three-fourths of a number is 
. Find the number in lowest terms.
A. 
x = 
; 
B. 
+ x = 
; - 
C. 
x = 
; 
D. 
x = 
; 
Use the provided graph or table to evaluate the given expression.f(-1)
A. 0 B. -1 C. -2 D. 1
Simplify the expression. Assume that all variables represent nonnegative real numbers.
+ 
+ 
+ 
A. 21
+ 
+ 
B. 21
+ 7x
C. 
xy + 
+ 7x
D. 221
+ 7x