Answer:
The functions f(x) = 2x2 + 2 and g(x) = 2x+1 + 2 are graphed on the coordinate plane as shown.
Step-by-step explanation:
Answer:
Angle DBC = 51
Step-by-step explanation:
Angle ABC = angle ABD + angle DBC
We are given that angle ABC = 122 and angle ABD = 71
So 122 = 71 + angle DBC
* Solve for angle DBC *
Subtract 71 from both sides
122 - 71 = 71 - 71 + angle DBC
51 = angle DBC
The answer to this problem is 9
Answer:
The correct option D.
Step-by-step explanation:
The given function is

Where f(d) is the height of the ball at horizontal distance d.
Put f(d)=0, to find the distance where the ball touch the ground.

Quadratic formula:

Using the quadratic formula we get


Therefore the ball is in air between d=-0.146 to d=9.146.
The distance can not be negative, therefore the ball remains in the air between d=0 to d=9.146.

Therefore the correct option is D.
Answer:
C. 13 1/2 feet
Step-by-step explanation:
The problem states that a thresher shark is 3 times as long as a sandbar shark. A sandbar shark is 4 1/2 feet, so to solve, you would either multiply 4 1/2 by three OR, to utilize the bar model, you would add 4 1/2 plus 4 1/2 plus 4 1/2 which would equal 13 1/2. :)