At first glance, it might be tempting to say this is a linear function, because we see linear terms (3x and –6x); however, these are multiplied together, so it's actually a quadratic.
We need to expand the function (hint: use FOIL) to identify the terms.
The x^2-term, or quadratic term, is
. The x-term, or linear term, is
. The number term, or constant term, is –20.
The answer is A because if you do 10*10*10 that would give you 1k and if u multiply that by 2 you get 2k
Total percentages of student who scored As
= 25+35= 60%
Probability of a girl who got A = 35/60
If you simplify the ans will be 7/12
Answer:
500
Step-by-step explanation:
100 X 5 = 5 + 5 + 5 + 5...100 times = 100 + 100 + 100 + 100 + 100 = 500
Answer:
0.6826
Step-by-step explanation:
The high temperatures for days in January are Normally distributed with a mean of 38 degrees Fahrenheit and a standard deviation of 5 degrees . How many days in January will have temperatures between 33 degrees Fahrenheit and 43 degrees Fahrenheit ? Round your answer to two decimal places.
Solution:
The z score is a score used in statistics to determine by how many standard deviations the raw score is above or below the mean. The z score is given by the formula:
From the normal distribution table, P(33 < x < 43) = P(-1 < z < 1) = P(z < 1) - P(z < -1) = 0.8413 - 0.1587 = 0.6826
