The 6 should be 30 in step two.
EXPLANATION
Following the Addition Property of Equality, you have to transpose the constant term to the other side by adding its negative or opposite value on both sides.
That is,
-18 - 3 x = 12
-18+18 - 3 x = 12+18
-3x=30
Following the equation, you'll have
-3x=30
x=-10
First, you do 1/4 • 9 to find the total amount that is in the bag, which is 2 1/4 cups. Then, you do 2 1/4 - 5/8 to find out how much is left in the bag. There is 1 5/8 cups of trail mix left in the bag.
Answer:
The 90% confidence interval for the mean weight of all adult male grizzly bears in the United States is between 573 pounds and 649 pounds.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 23 - 1 = 2
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 22 degrees of freedom(y-axis) and a confidence level of . So we have T = 2.0739
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 611 - 38 = 573 pounds
The upper end of the interval is the sample mean added to M. So it is 611 + 38 = 649 pounds
The 90% confidence interval for the mean weight of all adult male grizzly bears in the United States is between 573 pounds and 649 pounds.
Answer:
The answer is A. (4x²+3)(x+2)
Step-by-step explanation:
If u multiply (4x²+3) by (x+2), u get 4x^3+8x^2+3x+6