Answer:
2
Step-by-step explanation:
95% of all data lies within 2 standard deviations of the mean.
I know one way could be:
(3 × (-6)) + (5 × (-6)) = -18 + (-30) = -48
The other way i dont know
Answer:
2870
Step-by-step explanation: mind
2(x + 4) = -10 |divide both sides by 2
x + 4 = -5 |subtract 4 from both sides
x = -9
<h3><u>The value of y is equal to 1.</u></h3>
7(y - 3) = 2(y - 9) + 2y
Distributive property.
7y - 21 = 2y - 18 + 2y
Combine like terms.
7y - 21 = 4y - 18
Subtract 4y from both sides.
3y - 21 = -18
Add 21 to both sides.
3y = 3
Divide both sides by 3.
y = 1