Answer:
the answer is x^2+8x+ c
Step-by-step explanation:
If x
2
+
b
x
+
c is a perfect square, then there is always the same relation ship between b
and
c
"Find half of b and square it" , so c
=
(
b
/2
)
^2
x^
2
+
8
x
+
(
8/
2
)^2 =
x^
2
+
8
x
+
4^
2
=
x^
2
+
8
x
+
16 =
(
x
+
4
)
^2
I hope that helps you
Answer: TRUE
<h2 /><h2 /><h2 /><h2 /><h2>ANSWER IS IN THE PICTURE MARK ME BRAINLIEST!!</h2>
Step-by-step explanation:
Given:
population mean, mu = 57 lb
population standard deviation, sigma = 6.3 lb
Sample mean, x = 60.2 lb
Sample size, n= 45
Null hypothesis x = mu (i.e. sample mean is not greater than usual, using a significance level of 0.05)
Here we have a case where population mean and standard deviation are known (given).
We calculate the z-score
z=(x-mu)/(sigma/sqrt(n))
= (60.2-57)/(6.3/sqrt(45))
= 3.41
P(x>mu) = P(z>3.41) = 0.99968 >> 0.95 (one sided tail)
Therefore we can reject the null hypothesis and accept the alternate hypothesis that fish are larger than usual.
Answer:
D
Step-by-step explanation: