I think the answer would be 13
Answer:
Step-by-step explanation:
Given the the height covered by the ball modeled by the equation
y= -4.9x²+12
Since we are not told what to find, we can as well find the time taken by the ball to reach the ground.
The ball hits the ground when y = 0. Substitute y = 0 into the equation and calculate x;
y= -4.9x²+12
0 = -4.9x²+12
Subtract 12 from both sides
0-12 = -4.9x²+12-12
-12 = 4.9x²
x² = -12/4.9
x² = 2.448
x = √2.448
x = 1.57s
Hence we can say that the ball hits the ground after 1.57s.
X=7 is a function because no vertical line can be drawn so that it intersects.
Answer:
4 hours
Step-by-step explanation:
Find out how much he earns an hour.
7 hours = 145.60
1 hour = 145.60 ÷ 7 = 20.80
83.20 ÷ 20.80 = 4 hours (Find out how much hours Jose has to work to earn 83.20)
Answer:
Note that a cube has 6 sides, and that the numbers on the face is 1 - 6.
The probability of rolling a number less than 3. Let "x" be the number:
x < 3
All numbers that fit the category is 1 & 2. Divide the part (2) from the whole (6):
2/6 = 1/3
B. 1/3 is your answer.
Note that a cube has 6 sides, and that the numbers on the face is 1 - 6.
The probability of rolling a number greater than 2. Let "y" be the number:
y > 2
All numbers that fit into the category is 3, 4, 5, & 6. Divide the part (4) from the whole (6):
4/6 = 2/3
C. 2/3 is your answer.
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