Answer:
A. y= 2(x - 2)2 + 4
Step-by-step explanation:
vertex having an x value of 2 means the phrase in paren must be x - 2.
This eliminates B and D
vertex having a y value of 4 is of no help as the remaining two equations will result in 4 if the x term is 2
plugging in x = 3 makes y = 6 in equation A, but not in equation C where y = 10
Answer:
8 in.
Step-by-step explanation:
Perimeter of a rectangle, P = 2(L + W)
Value of P = 46.
Length is 7 inches less than the width. This translates to L = W - 7
Substitute L = W - 7 into the perimeter equation, you get
46 = 2(W - 7 + W)
46 = 2(2W - 7)
46 = 4W - 14
4W = 60
W = 60 / 4 = 15 in
L = W - 7 = 15 - 7 = 8 in
Answer:
8.8 Minutes or 528 Second.
Step-by-step explanation:
↓[ Read Below ]↓
Important Info:
Leslie Ran 3 Mile Race.
2nd Mile = 10% longer than 1st and 3rd Miles took her 24s longer than 2nd Mile
Question to Answer:
Leslie’s total time for the race was 26 minutes how long did the second mile take her?
Explanation/Solution:
Let for first mile, she took x minutes . And second mile took her 10 percent longer, so second mile took
x+ 10/100x = 110/100x=1.1x
And the third mile took 24 seconds longer as compared to second mile .
So third mile took
1.1x+24/60 = (1.1x+0.4) Minutes
And the total time for the race was 26 minutes, that is
x+1.1x+1.1x+0.4=26
3.2x=26-0.4
3.2x=25.6
x= 25.6/3.2 = 8 Minutes
So the first mile took 8 minutes. And therefore second mile took
= 1.1 (8) = 8.8 Minutes
Also Equal to 528 Second.
[RevyBreeze]
Answer:
4.73%
Step-by-step explanation:
y = 3×2^(t/15) = 3×(2^(1/15))^t = 3×1.0472941^t
In this form, ...
1 +r = 1.0472941
r = .0472941 ≈ 4.73%
The daily increase is about 4.73%.
The number is 19.6826 in it is B
