Convert the given polar coordinates of the point to rectangular coordinates.(8, 45°)
A. (4
, 4
)
B. (-4
, -4
)
C. (4?, 4?)
D. (4
, 4
)
Answer: A
Mathematics
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The circumference of a circle is 69.9 m. Find its radius. Use the rules for working with measurements.
A. The radius is 4.72 m. B. The radius is 11.1 m. C. The radius is 5.56 m. D. The radius is 22.2 m. E. The radius is 44.5 m.
Mathematics
Add.-9 + (-4)
A. 13 B. -13 C. -5 D. 5
Mathematics
Determine the domain and range of the function. Then graph it.f(x) = 
- 2
A. domain = [0, ?), range = [-2, ?)
B. domain = [-2, ?), range = [0, ?)
C. domain = [0, ?), range = [-2, ?)
D. domain = [2, ?), range =[0, ?)
Mathematics
Simplify the expression.
A. x15y14 B. -x9y9 C. x9 + y9 D. x9y9
Mathematics