Find the indicated function value.Find f(-1) when f(x) = 4x2 + 2x - 7.
A. -5
B. -8
C. 9
D. -1
Answer: A
Mathematics
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Sketch the vector field in the plane along with its horizontal and vertical components at a representative assortment of points on the circle x2 + y2 = 4.F = - 
i - 
j
What will be an ideal response?
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Divide.52.395 ÷ 0.1
A. 543.95 B. 523.95 C. 5239.5 D. 5189.5
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Find the perimeter.a scalene triangle whose sides are 15 ft, 8 ft, and 16 ft
A. 38 ft B. 39 ft C. 64 ft D. 31 ft
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Solve the problem.To convert a Fahrenheit temperature to Celsius, one formula to use is 
where F is the Fahrenheit temperature (in degrees) and C is the Celsius temperature. What is the Celsius temperature (to the nearest degree) when Fahrenheit temperature is 50°?
A. 96° B. 10° C. 24° D. 122°
Mathematics