Answer:
(5x +4y)^2
Step-by-step explanation:
The first and last terms are both perfect squares, and the middle term is twice the product of their roots. That means the trinomial is the perfect square trinomial ...
25x^2 +40xy +16y^2 = (5x +4y)^2
_____
It matches the pattern ...
a^2 +2ab +b^2 = (a +b)^2
The equation would be y=3x-1
Point Slope Formula:
y - y1 = m(x - x1)
y - 5 = 3(x-2)
y - 5 = 3x - 6
+ 5 + 5
--------------------
y = 3x - 1
<span><span><span>I believe the answer is (x+5)^</span>2</span>+<span><span>(y+6)^</span>2</span>=9
</span>
Answer:
The probability that the average of the scores of all 400 students exceeds 19.0 is larger than the probability that a single student has a score exceeding 19.0
Step-by-step explanation:
Xi~N(18.6, 6.0), n=400, Yi~Ber(p); Z~N(0, 1);
P(Xi≥19.0)=0.473
p=0.473
Yi~Ber(0.473)
Based on the Central Limit Theorem:
Then:
Based on the Central Limit Theorem:
Then:
the probability that the average of the scores of all 400 students exceeds 19.0 is larger than the probability that a single student has a score exceeding 19.0
Answer:
D
Step-by-step explanation:
Set up to different integrals that match the endpoints
so in our case it would look like
now it's just a matter of computing it