Total marbles = 2 + 7 = 9
P(Purple, then white) = (7/9)(2/8) = 7/36
Answer: 7/36
P' = (-1, 8) (the x coordinate stays the same and the y coordinate = (distance between -4 and 2) + 2 = 6+2 = 8).
using the same process:-
Q' = (4, 8)
R' = (8, 5)
S' = (3, 5)
Answer:
36 x 2 - 49 y 2
Step-by-step explanation:
6 x (6x) +6 x ( - 7 y ) + 7 y (6x) +7 y ( - 7 y)
Answer:
80 Students were surveyed.
Step-by-step explanation:
To find the answer we need to do a Rule of Three. The Rule of Three is a Mathematical Rule that will help us to solve problems based on proportions.
1. I know that a 65% of students are 52 students. I need to know how many students represent that 100%.
2. So if 52 students mean _____ 65%
X students mean _____ 100%
Pay attention here. We have to put the same elements in the same columns. Students with studients and percentage with percentage.
3. Now I have to cross these details. I have to multiple 52*100. So:
52*100= 5200
4. Then divide that result by 65.
5200/65= 80
5. So 80 is the total number of students surveyed.
The equation becomes y =-0.7x²+5.4x+6 if the person who is 6 feet tall throws a ball into the air option first is correct.
<h3>What is a quadratic equation ?</h3>
Any equation of the form 
Where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
The standard form of a quadratic equation:
Plug x = 0 and y = 6
6 = c ...(1)
Plug x = 1, and y = 10.7
10.7 = a + b + c ...(2)
Plug x = 2 and y = 14
14 = 4a + 2b + c ...(3)
After solving equation (1), (2) and (3) we get:
a = -0.7
b = 5.4
c = 6
Thus, the equation becomes y =-0.7x²+5.4x+6 if the person who is 6 feet tall throws a ball into the air option first is correct.
Learn more about quadratic equations here:
brainly.com/question/2263981
#SPJ1
