Answer:
The lower end of the interval is above 0.5, which means that it provides evidence that a majority of visitors to Niagara Falls are from the United States
Step-by-step explanation:
We want to see if the majority of Niagara Falls visitors are from the United States.
Looking at the confidence interval
We have to see if the lower end of the interval is higher than 0.5.
In this question:
The 95% confidence interval to estimate the true proportion of visitors to Niagara Falls that are from the United States was (0.5216, 0.6784).
The lower end of the interval is above 0.5, which means that it provides evidence that a majority of visitors to Niagara Falls are from the United States
X+1=y and 3y-7=2x are your two equations.
Substitute x+1 in for y
3(x+1)-7=2x
3x+3-7=2x
x-4=0
x=4
Plug in 4 for x in either equation to solve for y
x+1=y
4+1=y
5=y
x=4 and y=5
Hope I could help!
Answer:
41
Step-by-step explanation:
Matrix Multiplication follows a row-column format. In order to compute this, you must be familiar with vector dot products.
With that in mind, lets get straight into it.
The order that matrix multiplication follows means that the terms in the result are filled in left to right, then top to bottom.
Therefore, a21 will be the 3 value that is computed. This is important becuase this allows to directly compute a21, instead of using up a lot of time computing all the values before.
As a21 is located in the bottom row 1st column, we take the dot product of the 2nd row in matrix 1 and the 1 column in matrix two.
So we have:
(7 2) dot (5 3) = 7*5 + 2*3 = 41
I think it 157 the answer of it is 14
Answer:
1 3/5
Step-by-step explanation:
(4 cans)/(2 1/2 qt) = (4 cans)/(5/2 qt)
= (4)·(2/5) cans/qt . . . . . . . "invert and multiply"
= 8/5 cans/qt
= (5 +3)/5 cans/qt
= (5/5 + 3/5) cans/qt
= 1 3/5 cans/qt
_____
You can also think of this as multiplying the following statement by 2/5:
... 4 cans for 5/2 quarts
... (4)(2/5) cans for (5/2)(2/5) quarts . . . . multiply by 2/5
... 8/5 cans for 1 quart . . . . simplify
... 1 3/5 cans for 1 quart . . . . write improper fraction as mixed number