Establish the identity.(sec u - tan u)(sec u + tan u) = 1
What will be an ideal response?
(sec u - tan u)(sec u + tan u) = sec2u - tan2u = 1
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Find the total surface area of the given space figure.
a = 1
yd
A. 6
yd2
B. 13
yd2
C. 6
yd2
D. 36 yd2
Write the sentences as a system of inequalities in two variables. Then graph the system.The sum of the x-variable and the y-variable is at least 7. The x-variable added to the product of 2 and the y-variable does not exceed -2.
A. x + y ? 7
x + 2y ? -2
B. x + y ? 7
2x + y ? -2
C. x + y ? 7
2x + y ? -2
D. x + y ? 7
x + 2y ? -2
Solve the problem.An electrician charges a fee of $55 plus $40 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slope-intercept form of the equation.
A. y = 55x + 40 B. y = 40x + 55 C. y = 40x - 55 D. y = 55x - 40
Graph the linear equation.y = 
x + 8
A. 
B. 
C. 
D. 