So, (6a - X)*5a = Y*(a^2) - 35a
<span>=> 6a*5a - X*5a = Y*(a^2) - 35a </span>
<span>=> 30(a^2) - X*5a = Y(a^2) - 35a
</span>30 = Y and
<span>X*5 = 35 or X = 7 </span>
I think r= 5
7r-7=2r+18
Subtract 2 from 7r and 2r
U get 5r-7=18
Then add 7 to 7 and 18
18+7= 25
the remainder is 5r and 25
So u divide 5 to 5r and 25 then ur answer is 5
So r=5
Answer:
There is difference in the scores of males and females
Step-by-step explanation:
Given that a professor teaches a certain section of material using a lot of examples with sports and cars to illustrate. He is concerned that this may have biased his instruction to favor male students
Since simple variances are unequal, we can do t test for comparison of two means with unequal variances
Group Group One Group Two
Mean 84.00 78.00
SD 4.00 8.00
SEM 1.26 2.53
N 10 10
The mean of Group One minus Group Two equals 6.00
95% confidence interval of this difference: From 0.06 to 11.94
t = 2.1213
df = 18
standard error of difference = 2.828
The two-tailed P value equals 0.0480
Since p <0.05 we reject null hypothesis
There is difference in the scores of males and females
The volume of the cylinder that measures 6 ft tall and 3 ft wide and was triple would be 1,145.6 cubic feet. This is calculated using the formula volume =
(r²)(h). BUt before substitutign the value, we need first to multiply it byt 3 and for the wide it has to be further divided to 2 to have the radius, h = 18 and r = 4.5. Substituting the value it would give us 1,145.6