Find an equation for the line with the given properties.Perpendicular to the line y = -9; containing the point (1, 4)
A. y = 4
B. y = 1
C. x = 4
D. x = 1
Answer: D
You might also like to view...
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5 
A. log5125 - log5
B. 3log55 - 
log5(x - 1)
C. 3 - log5
D. 3 - 
log5(x - 1)
Solve.3x - 4y + 5z = 4 - y + 4z = 4 z = 3
A. 
B. 
C. 
D. 
Solve.If the three lengths of the sides of a triangle are known, Heron's formula can be used to find its area. If a, b, and c are the three lengths of the sides, Heron's formula for area is: A = 
where s is half the perimeter of the triangle, or s = 
(a + b + c).Use this formula to find the area of the triangle if a = 9 cm, b = 11 cm and c = 16 cm. 
A. 3
sq. cm
B. 18
sq. cm
C. 180
sq. cm
D. 18
sq. cm
Solve the problem.A certain noise produces 
of power. What is the decibel level of this noise (to nearest decibel)? Use the formula 
where 
A. 184 decibels B. 70 decibels C. 8 decibels D. 80 decibels