Answer:
<u><em>8/20</em></u>
Step-by-step explanation
<em>boys left handed=3
</em>
<em>boys right handed=9
</em>
<em>girls left handed=2
</em>
<em>girls right handed=6
</em>
<em>what is the probability that a student chosen from random is a girl? give answer as a fraction please and include step by step process</em>
<em>girls left handed: 2</em>
girls right handed: 6
6+2=8
total all students 20
<em>8/20</em>
Answer:
Step-by-step explanation:
8x9=72 3x16=48 72+48=120
We are given a graph for the height of the ball with respect to horizontal distnace x of the ball from Julie.
From the graph, we can see the position of Julie is at (0,0). And starting height of the ball when thrown is 6 feet.
Then it moved to the maximum height of 14 feet. And hit to the ground when it has position on x-axis is 3.5 feet.
<em>Because we can see the parabola is crossing x-axis at 3.5 on the right.</em>
<em>That represents distance of the ball from Julie when it hit to the ground.</em>
<h3>Therefore, it has a horizontal distance of 3.5 feet from Julie.</h3>
Answer:
4
Step-by-step explanation:
because 2 1/2 times 4=10
Answer:
x = 0, x = 4
Step-by-step explanation:
12x - 21 = 5x + 7(x - 3)
First, foil out the right side --> 5x² - 15x + 7x - 21, which simplifies down to 5x² - 8x - 21.
Move the 12x - 21 to the right side by subtracting --> 0 = 5x² - 20x.
Factor out a 5x --> 0 = 5x(x - 4)
If you want to solve for x, set 5x = 0 and x - 4 = 0.
For 5x = 0, divide both sides by 5 to isolate the x --> x = 0/5, which simplifies down to x = 0.
For x - 4 = 0, add 4 to both sides to isolate the x --> x = 0 + 4, which simplifies down to x = 4.
Plug the values back into the original equation to check if it works
12(0) -21 = 5(0) + 7((0) - 3) --> -21 = -21
12(4) - 21 = 5(4) + 7((4) -3) --> 27 = 27
Hope this helps!