D.
1/5 of 65 is
65 × 1 / 5
65 / 5
= 13
65 and 13 add up to 78.
65 is the highest number out of both numbers.
♧
Knowing the ratio for dogs to cats is 10:9
To get to 50 dogs they multiplied 10x5
So multiply 9x5 as well to get the number of cats
Cats = 45
:) hope this helps
Answer:
The marginal error is 2.355
Confidence interval is 
The LB and UB are 34.645 and 39.3555 respectively.
Step-by-step explanation:
Consider the provided information.
n = 49, s = 8.2 c = 95%and 
Degree of freedom is: n-1 = 49-1 = 48.
From the table 
Marginal error is:
Hence, the marginal error is 2.355.
Part (B)
95% confidence interval estimate
Thus, the LB and UB are 34.645 and 39.3555 respectively.
Answer: Your equation would be y = x(12 - 2x)(8 - 2x).
The volume of a rectangular prism is V = LWH. The initial length and width are given as 12 and 8, however that makes the height 0.
If we cut out the corners, they would be the length of x. When we cut out the corners, we are subtract the length x from both ends of the length and width.
So now our measurements are:
Length: 12 - 2x
Side: 8 - 2x
Height: x
Multiply them altogether and you have your equation. Then, you can use your equation to find any measurements that you need.
