Yea you multiply it 1 plus 2 times 9 and get 52
Answer:
This means that there is a 95% probability that the confidence interval will contain the true population mean. Thus, P( [sample mean] - margin of error < μ < [sample mean] + margin of error) = 0.95.
Answer:
See below for answers and explanations
Step-by-step explanation:
<u>Part A</u>
The average rate of change of a function over the interval is equal to , hence:
Therefore, the average rate of change of over the interval is .
<u>Part B</u>
Do the same thing as in Part A:
Therefore, the average rate of change of over the interval is .
<u>Part C</u>
To interpret our answer from Part B in terms of the real world it represents, we say that between 0.25 seconds and 1 second, the ball falls at a rate of 4 feet per second (since our average rate of change is negative).
Answer:
0.5
Step-by-step explanation:
5.348
5 is in ones place
5/10=0.5
Answer:
x=−9 and y=−2
Step-by-step explanation:
Multiply the first equation by 2,and multiply the second equation by -5.
2(1/3x−y=−1)
−5(1/5x−2/5y=−1)
Becomes: 2/3x−2y=−2
−x+2y=5
Add these equations to eliminate y:
−1/3 x=3
Then solve −1/3x=3 for x:
−1/3x 3
−1/3 = −1/3
(Divide both sides by (-1)/3)
x=−9
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
1/3x−y=−1
Substitute−9 for x in 1/3x−y=−1:
1/3(−9)−y=−1
−y−3=−1(Simplify both sides of the equation)
−y−3+3=−1+3(Add 3 to both sides)
−y=2
−y
−1=
2
−1
(Divide both sides by -1)
y=−2