Answer:
Step-by-step explanation:
y=-1/2(x+10)^2+14
2y=-(x+10)^2+28
(x+10)^2=28-2y
L.H.S. is positive.
so 28-2y≥0
28≥2y
or 2y≤28
or y≤ 14
Range is (-∞,14]
Answer:
Pack of 6 apples for £1.65 is better because the price of 1 apple is less in this answer.
Answer:
True
Step-by-step explanation:
The variance of data measures how much the data varies.
1108 i think becuase 10 to the power of 3 is 1000 now 10 -4 =6 X 2 = 12 + 3
Rule: If the p-value is smaller than alpha, then we reject the null hypothesis. Otherwise, there isn't enough statistically significant evidence to overturn the null.
In this case, the level of significance is 0.09 so alpha = 0.09
The p-value is 0.0553, which is smaller than alpha. So we reject the null.
