Answer:
B
Step-by-step explanation:
B
x - 4 squared provides 2 real zeros that are the same. These two are not distinct.
The other two come from x^2 - 7x + 10 which has a discriminate of
sqrt(7^2 - 4*1*10) = sqrt(9) = +/- 3 leading to something real and different.
Step-by-step explanation:
y=-27
...................
Answer:
1.22 x ![10^{6}](https://tex.z-dn.net/?f=10%5E%7B6%7D)
Step-by-step explanation:
1,220,000 would be...
1.22 x 10^6
Answer:
The probability that the candidate score is 600 or greater
P(X≥ 600 ) = 0.0228
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Given mean of the Population = 500
Given standard deviation of the Population = 50
Let 'X' be the random variable in normal distribution
Given X = 600
![Z = \frac{x-mean}{S.D} = \frac{600-500}{50} = \frac{100}{50} =2](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7Bx-mean%7D%7BS.D%7D%20%3D%20%5Cfrac%7B600-500%7D%7B50%7D%20%3D%20%5Cfrac%7B100%7D%7B50%7D%20%3D2)
<u><em>Step(ii)</em></u>:-
The probability that the candidate score is 600 or greater
P(X≥ 600 ) = P(z≥2)
= 0.5 - A(2)
= 0.5 -0.4772
= 0.0228
<u><em>Final answer</em></u>:-
The probability that the candidate score is 600 or greater
P(X≥ 600 ) = 0.0228
Answer:
Step-by-step explanation:
A]
Both have the same surface area. The numbers are just rearranged.
B]
Is the correct answer.
The surface area of the first one is 2*8*5 + 2*8*6 + 2*5*6 = 236
The surface area of the second is 2*10*8 + 2*10*3 + 2*8*3 = 244
C]
Another rearrangement. Not the answer.
D]