Any slice into the three-dimensional shape below will always result in a two-dimensional shape of a triangle. True or False?
2 answers:
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Answer: 2.396
Step-by-step explanation:
Given : It is claimed that the national average for the price of gasoline in $2.66 per gallon.
i.e. Population mean :
Sample size :
Sample mean :
Standard deviation :
We assume that the national average for the price of gasoline is normally distributed.
Since the sample size is small (< 30), then we need to calculate t-test statistic for the test .
Hence, the test statistic for this test = 2.396
Answer:
y = -6x^2 - 36x - 30
Step-by-step explanation:
X intercepts are the roots
y = a(x + 1)(x + 5)
to find "a" use point (0, -30)
-30 = a(1)(5)
-30 = a(5)
a = -6
therefor
y = -6(x + 1)(x + 5)
Expanded form
y = -6x^2 - 36x - 30
