Factor by grouping.3x + 27 + xy + 9y
A. (x + 9)(3 + y)
B. (y + 9)(3x + y)
C. (y + 9)(x + 3)
D. (x + 9y)(3 + y)
Answer: A
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Provide an appropriate response.Change 52" to decimal degree equivalent. Express the decimal to the nearest ten-thousandth.
A. 0.8667° B. 0.0144° C. 0.1444° D. 0.0867°
The formula SA =?r (r + 1) gives the surface area of a cone where r is the ________________ and 1 is the of the cone.
What will be an ideal response?
The graph of the linear equation y1 is shown on a graphing calculator screen, along with the x-value of the x-intercept of the line. Use the screen to solve the following equation or inequality.y1 > 0
A. (-?, -5) B. (5, ?) C. (-?, 5) D. (-5, ?)
Solve the problem.A baseball pitcher throws a baseball with an initial speed of 133 feet per second at an angle of 20° to the horizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 124.98t, y = -16t2 + 45.49t + 5 5.457 sec, 1.422 sec, 263.668 feet B. x = 124.98t, y = -16t2 + 45.49t + 5 2.729 sec, 1.422 sec, 4.983 feet C. x = 124.98t, y = -16t2 + 45.49t + 5 5.898 sec, 1.422 sec, 32.333 feet D. x = 124.98t, y = -16t2 + 45.49t + 5 2.949 sec, 1.422 sec, 37.333 feet