Answer: 10
Explanation:
If n = 7:
Substitute n for 7.
5(7 - 5)
(5)(2)
10
You have to write a word problem where (a * x) + b is greater than c. One situation could start with (a * x) where a is 2, and x is another number, lets say 5. You have to multiply those and then add b, which we could say is 2, for the sake of it. Then all of those together has to be more than c, which could be 9 for this problem. Then you have to show your work and graph on a number line and all that stuff, and explain what your solution means in the context of the problem. That could be what the numbers mean in relation to others, or what a, x, b, and c are.
Answer:
1: D. 1/336
Explanation:
10 x 9 x 8 = 720
There are 720 ways for them to come in first, second and third place.
2. Probability = 1/8 x 1/7 x 1/6 = 1/336
The probability is 1/336 or 0.002976.
Step-by-step explanation:
Note: Question does not indicate if probability required is for weight to exceed or below 3000 lbs. So choose appropriate answer accordingly (near the end)
Using the usual notations and formulas,
mean, mu = 3550
standard deviation, sigma = 870
Observed value, X = 3000
We calculate
Z = (X-mu)/sigma = (3000-3550)/870 = -0.6321839
Probability of weight below 3000 lbs
= P(X<3000) = P(z<Z) = P(z<-0.6321839) = 0.2636334
Answer:
Probability that a car randomly selected is less than 3000
= P(X<3000) = 0.2636 (to 4 decimals)
Probability that a car randomly selected is greater than 3000
= 1 - P(X<3000) = 1 - 0.2636 (to 4 decimals) = 0.7364 (to 4 decimals)
The answer would be 25 because 25 times 2 is 50
