Answer:
18
Step-by-step explanation:
8 3/4 + 9 2/8
We can simplify 2/8 by dividing the top and bottom by 2
8 3/4 + 9 1/4
Add the whole numbers
8+9 = 17
3/4 + 1/4 = 4/4 = 1
Add this to the whole numbers
17+1 = 18
Answer:
I believe that it should be Y; Height of an emperor penguin on Antarctica
1.

add 5 to both sides

2.

subtract 2 from both sides

3.

add 2 to both sides

and it's the 4th graph option
4.

subtract 5 from both sides

and it's the 2nd graph option
5.

add 5 to both sides

Answers:
1. 3rd option
2. 1st option
3. 4th option
4. 2nd option
5. 2nd option
Hope this helps!
Answer:
A. (4.78, 6.90)
Step-by-step explanation:
Using the following formulas the lower and upper limits of the Interval are calculated
Lower limit = mean - (standard deviation /√sample size)* Zr
Upper limit = mean + (standard deviation /√sample size)* Zr
Zr depends on confidence interval and can be found in a z table
Zr for 90% = 1.645
then
Lower limit = 5.84 - (4.98 /√60)* 1.645 = 4.78
Upper limit = 5.84 + (4.98 /√60)* 1.645 = 6.90