Answer:
x = 7, x = -3
Step-by-step explanation:
We can find the zeros by factoring the equation using the zero product property.
x^2-4x-21 = 0
(x-7)(x+3) = 0
<u>x-7 = 0</u>
x = 7
<u>x+3 = 0</u>
x = -3
Zeros are x=7 and x= -3.
Answer:
-21/4
Step-by-step explanation:
slope = y2-y1/ x2-x1
-18 - 3 / 17-13 = -21/4
Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1
Answer:
Step-by-step explanation:
The missing parameters are:
--- population
--- population mean
-- population standard deviation
Required
First, calculate the sample standard deviation
Next, calculate the sample mean 
So:
So, we have:
Calculate the z score
So, we have:
From the z table
So:
Answer:
29/42
Step-by-step explanation:
No. of red candies = 3
No. of green candies = 13
No. of yellow candies = 13
No. of blue candies = 13
T.T = 42
Probability that candy will not be blue= 13+13+3 = 29
= 29/42
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