Answer:
17.85 answer
Step-by-step explanation:
u add the following and the ans u get u take it away from 25
Answer:
-4x + 4
Step-by-step explanation:
4x - 2( 4x - 2 )
→ Expand out 2 ( 4x - 2 )
2 ( 4x - 2 ) = 8x - 4
→ Substitute the expanded bracket back into the expression
4x - (8x - 4)
→ Collect the 'x' values
-4x + 4
Answer:
95%.
Step-by-step explanation:
We have been given that the lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 7 hours.
We are asked to find the percentage of the bulbs whose lifetimes lie within 2 standard deviations to either side of the mean using empirical rule.
The empirical rule (68-95-99.7) states that approximately 68% of data points lie within 1 standard deviation of mean and 95% of data points lie within two standard deviation of mean. 99.7% of data points lie within three standard deviation of mean.
Therefore, approximately 95% of data points lie within two standard deviation of mean.
Answer:
100$- 50$
hagahaha
Step-by-step explanation:
Part A: Does the table represent y as a function of x? Justify your answer.
Yes, this table does represent y as a function of x. No x-value appears more than once, and in each case, there is exactly ONE associated y-value. Were there more than one associated y-value, the table would not represent a function.
****************
f(x) = 20 + 3x
What is the value of f(150), and what does f(150) represent?
Substitute 150 for x (in two instances) in the given function:
f(150) = 20 + 3(150) = 20 + 450 = 470. This is the value of the function when the input value (x) is 150 units.
f(150) is functional notation represents the value (y-value) of the function when the input (x-value) is 150 units.