As points, x-intercepts take the form
, so to find the intercepts we can set
and solve for
.
From the first equation alone, we already know that
is a solution, which means one intercept is
.
The second equation gives
so that the second intercept occurs at
.
So if
and
, we have
, giving C as the answer.
Answer:
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Step-by-step explanation:
Percentage of 9th graders that said no is approx. 14%
Percentage of opposers that were 9th graders is approx 6%
Answer:
P = 24
Step-by-step explanation:
P = 2L + 2W ( substitute L = 4, W = 8 into the formula )
P = 2(4) + 2(8) = 8 + 16 = 24
Answer:
The answer is in the explanation
Step-by-step explanation:
Mean value = = 438
(a) The data appeared to be centered towards 438.
There are little or no skew.
There is no outliers.
(b) yes
(c) standard deviation = s = 14.8955
95% confidence interval =
=
= (430.3415, 445.6585)
(d) Test statistic
t =
t = -3.3216
p -value is correctly given in option b.
No, 450 is not a plausible valaue.