Answer:
A. There is a focus at (-9, 1).
D. There is a directrix at x = -5.8.
F. There is a directrix at x = -2.2.
Step-by-step explanation:
Just did it in edg
Answer:
The fraction of frame did Monica paint blue is 
Step-by-step explanation:
Given as :
The area of square frame = A = 24 square inches
Monica paint 
of one side of the frame blue
Let the measure of one side of frame = x
So, <u>From Area of square</u>
Area = side × side
Or, A = x × x
Or, x ² = 24
∴ x = 
= 2
So, Measure of each side = x = 2
Now, As Monica paint of one side of the frame blue
So, The painted part = × 2
∴ The painted part = 
×
I,e The fraction of painted blue =
Hence, The fraction of frame did Monica paint blue is Answer
Answer:
1 hr, 48 minutes
Step-by-step explanation:
you can create a proportion:
doughnuts/hours = doughnut/hours (h)
1500/9 = 300/h
cross-multiply to get:
1500h = 2700
h = 27/15
h = 1 12/15, which is 1 hr, 48 minutes because 12/15 = 48/60
Answer: The first table
Step-by-step explanation:
1:16
2:32
4:64
8:128
Answer:
We reject the Null and conclude that the mean costs of a meal at fast food restaurants in two different cities are different.
Step-by-step explanation:
Given :
City n x s
A 26 $4.05 $0.55
B 32 $5.15 $0.85
H0 : μ1 - μ2 = 0
H0 : μ1 - μ2 ≠ 0
n1 = 26 ; x1 = 4.05 ; s1 = 0.55
n2 = 32 ; x2 = 5.15 ; s2 = 0.85
Tstatistic :
(x1 - x2) / √(s1²/n1 + s2²/n2)
(4.05 - 5.15) / √(0.55²/26 + 0.85²/32)
-1.1 / 0.1849668
= - 5.947
Using the smaller n;
df = n - 1 ; 26 - 1 = 25
Pvalue = (-5.947, 24)
Pvalue = 0.000001
Since Pvalue < α ; We reject the Null and conclude that the mean costs of a meal at fast food restaurants in two different cities are different.
