Answer:
Side of the square paper = 21 inches
Step-by-step explanation:
Let the square paper is having measure of each side = a inches
Esther cut this square piece into two pieces.
Let the other side of one rectangle piece = x inches
Perimeter of this piece = 2(a + x) inches
Similarly dimensions of the other rectangular piece will be = a inches × (a - x) inches
Perimeter of this piece = 2[a + (a - x)]
Since both the rectangular pieces have the same perimeter = 63
So, 2(a + x) = 2[a + (a - x)] = 63
2(a + x) = 2(2x - x)
a + x = 2a - x
2a - a = 2x
a = 2x
x = 
Therefore, Perimeter = 2(a + x) = 2(a + ) = 63
= 63
3a = 63
a = 21
Therefore, measure of the sides of the square is 21 inches.
Answer:
14 : 15 or 2 : 15 pm
Step-by-step explanation:
Time of the appointment = 11: 45 + 2 ½ hours
Jason's appointment is in 2 ½ hours. His appointment is in 2 hours + 1/2 of an hour
1/2 of an hour = 1/2 x 60 = 30 minutes
Remember that 60 minutes make one hour
Time of the appointment = 11:45 + 2:30
+ <u>2 : 30 </u>
13 : 75
we would have to adjust the time derived from the addition because the maximum minutes that exist is 60
To adjust, remove 60 minutes from the minutes and add it to the hour
this gives 14 : 15 or 2 : 15 pm
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Answer:
a) 25
b) 49
c) 97
Step-by-step explanation:
The sample size is calculated using the formula, n = 
Now,
for 95% confidence level value of z-factor = 1.96
Given:
Mean = $3.94
standard deviation = $0.25
thus,
a) for margin of error = $0.10
n =
or
n = 
or
n = 4.9²
or
n = 24.01 ≈ 25 (Rounded off to next integer)
b) for margin of error = $0.07
n =
or
n = 
or
n = 7²
or
n = 49
c) for margin of error = $0.05
n =
or
n = 
or
n = 9.8²
or
n = 96.04 ≈ 97 (Rounded off to next integer)
9/27=33.3% repeating 3 = 0.3 repeating 3
18/27= 66.6 repeating 6 = 0.6 repeating 6
I think it is b because of the negative 2 so it have to go down
