4 is on the y-intercept. the y axis is vertical and the x axis is horizontal.
Question 17: B. A’ (1,2), B’ (3,2), C’ (3,5)
Translating 4 to the right means that you should add 4 to the x value of your coordinate point.
Question 18: C. (3,-5)
This is because reflecting over the x-axis would mean to move down the same amount of units above the x-axis the original point is (the original point is five units above the x-axis so you just move down five units). Look at the attached picture for more help.
Question 19: A. C’ (0,-2)
We can see that the triangle has been translated 1 unit to the right and 2 units up. This would mean you add 1 to the x-value of the coordinate and add 2 to the y-value of the coordinate. I can’t see point C clearly, but I’m guessing that it’s at (-1,-4). This would give point C’ as (0,-2)
Hope this helps! Let me know if you need more help! Have a fantastic day!
Answer: 
Step-by-step explanation:
The confidence interval for population proportion(p) is given by :-

, where
= Sample proportion.
n= Sample size.
z* = Critical value.
Let p = Proportion of adults in the U.S. who have donated blood in the past two years.
As per given , we have
n= 2322
Sample proportion of adults in the U.S. who have donated blood in the past two years. :
By z-table , the critical value for 90% confidence : z*= 1.645
Then, the 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years will be






Hence, the 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years. = 
Length of the rectangle is 40 meters.
Step-by-step explanation:
- Step 1: Ratio of width:length = 4:5, so let width be 4x and length be 5x. Find the length if area = 2000 sq. m
Area of the rectangle = length × width
2000 = 5x × 4x
2000 = 20x²
⇒ x² = 2000/20 = 100
∴ x = 10
4x = 40 m
4 years
using I = PRT
then T = 
calculate PR = 1300 ×
= 74.75, hence
T =
= 4 years