Answer:
2.1
Step-by-step explanation:
(21-3)/3 to the power of 2
19/3 to the power of 2
19/9
2.1
Answer: x is 12
Step-by-step explanation:
For directly proportional relationship, both variables change in the same direction. It means that an increase in one variable will result to an increase in the other variable. A decrease in one variable will result to a decrease in the other variable.
y and x have a proportional relationship,
We will introduce a proportionality constant and replace the proportionality symbol with an equal to symbol. Thus
y = kx
When y is 12, x is 8
Substituting into the equation,
12 = k × 8
k = 12/8 = 1.5
The equation becomes
y = 1.5x
The value of x when y is 18 will be
18 = 1.5x
x = 18/1.5 = 12
Y = 2.5x - 500
I simplified it a bit, you could write it as y = 5x - 2.5x - 500
I will use the binomial distrubion to find the probability.
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A - selecting a red checker exactly 7 times in 10 selections
Answer:
plz repost it
Step-by-step explanation:
