Perform the conversion. Round to the nearest tenth when necessary.81° C to Fahrenheit
A. 30.8° F
B. 66.4° F
C. 177.8° F
D. 113.8° F
Answer: C
Mathematics
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Use a calculator to find the value of y in degrees rounded to two decimal places.y = cos-1 (-0.4541)
A. 117.01° B. -27.01° C. 24.42° D. 27.01°
Mathematics
Find the standard form of the equation of the ellipse satisfying the given conditions.Center at (0, 0); Focus at (0, 6); Vertex at (0, 7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Identify the degree of each term and the degree of the polynomial.8x2 - 3x + 7
A. 8, -3, 7; 8 B. 2, 1, 0; 8 C. 2, 0, 0; 2 D. 2, 1, 0; 2
Mathematics
Find the slope of the tangent line to the graph at the given point.f(x) = -3x + 11 at (2, 5)
A. -3
B. - 
C. -11
D. 11
Mathematics