Answer:
ty to the points :>
Step-by-step explanation:
tytytytysm
Answer:
−35.713332 ; 0.313332
Step-by-step explanation:
Given that:
Sample size, n1 = 11
Sample mean, x1 = 79
Standard deviation, s1 = 18.25
Sample size, n2 = 18
Sample mean, x2 = 96.70
Standard deviation, s2 = 20.25
df = n1 + n2 - 2 ; 11 + 18 - 2 = 27
Tcritical = T0.01, 27 = 2.473
S = sqrt[(s1²/n1) + (s2²/n2)]
S = sqrt[(18.25^2 / 11) + (20.25^2 / 18)]
S = 7.284
(μ1 - μ2) = (x1 - x2) ± Tcritical * S
(μ1 - μ2) = (79 - 96.70) ± 2.473*7.284
(μ1 - μ2) = - 17.7 ± 18.013332
-17.7 - 18.013332 ; - 17.7 + 18.013332
−35.713332 ; 0.313332
Answer: 24cm
Step-by-step explanation:
R = 25 cm
S = 7 cm
T = ?
The square of equals to the addition of the square of S and the square of T.
R^2 = S^2 + T^2
25^2 = 7^2 + T^2
T^2 = 25^2 - 7^2
T^2 = 625 - 49
T =✓576
T = 24cm
<span>the answer is 6047 i think
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