Answer:you did it right good job
Step-by-step explanation:
Answer:
Evan = 200 miles
Susan = 380 miles
Step-by-step explanation:
Evan:
Step 1:
25 miles × 8 gallons
Answer:
200 miles
Susan:
Step 1:
38 miles × 10 gallons
Answer:
380 miles
Hope This Helps :)
Answer:
2nd option
Step-by-step explanation:
Given
2x - 8y + 3x² + 7y - 12x ← collect like terms
= 3x² + (2x - 12x) + (- 8y + 7y)
= 3x² + (- 10x) + (- y)
= 3x² - 10x - y
Answer:
25 - 20 = 5
Step-by-step explanation:
Since the Hornets have played a total of 25 games and won only 20 of them, you want the difference between the two to figure out how many games the Hornets lost.
<em>t = total games played</em>
<em>w = games won</em>
<em>l = games lost</em>
<em>t - w = l</em>
Answer:
(−14.850850 ; 0.565135)
Step-by-step explanation:
Confidence interval :
Xd ± Tcritical * Sd/√n
Population 1 :30 35 23 22 28 39 21
Population 2 : 45 49 15 34 20 49 36
d = -15,-14,8,-12,8,-10,-15
The mean of d, Xd = Σx / n = - 7.14285714
The standard deviation of the difference, Sd = 10.4948967 (using calculator)
Sample size, n = 7
Tcritical at 90%, df = 7 - 1 = 6
Tcritical = 1.943176
Confidence interval :
- 7.14285714 ± 1.943176 * 10.4948967/√7
Confidence interval :
- 7.14285714 ± 7.7079925
(−14.850850 ; 0.565135)
