Solve for the variable.4(2x - 3) = 7(x + 4)
A. x = 20
B. x = 40
C. x = -16
D. x = 16
Answer: B
Mathematics
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At the given point, find the slope of the curve, the line that is tangent to the curve, or the line that is normal to the curve, as requested.x5y5 = 32, slope at (2, 1)
A. 2
B. - 
C. 16
D. - 
Mathematics
Graph the function. Show at least one period.y = 4 cos
A. 
B. 
C. 
D. 
Mathematics
Write the equation in standard form.18x2 + 45y2 + 108x - 270y + 198 = 0
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.What is the intensity in watt/m2 of a noise that's loudness is measured at 98 decibels?
A. 9.8 × 10-10 watt/m2 B. 6.31 × 10-3 watt/m2 C. 6.31 × 10-2 watt/m2 D. 1.8 × 1016 watt/m2
Mathematics