Answer:
Type I error is nothing but Reject the H0 when H0 is true.
Here H0: the absorption rates are the same
H1: the absorption rates are different
Now Type I err or is Deciding that the absorption rates are different, when in fact they are
7.4 rounded to the nearest tenth is 7
Step by step;
Red:black
25/75
25 to 75
25/75 / 5/5 = 5/15 you can divided that number me more time (divid it by 5/5) which give you your answer of 1:3
Well I don't know !
Let's work it out together:
3(x - 2) = -3x + 42
Eliminate parentheses: 3x - 6 = -3x + 42
Add 6 to each side: 3x = -3x + 48
Add 3x to each side: 6x = 48
Divide each side by 6 : x = 8
Answer:
Correct option is D. No, since the ratios of the corresponding sides are not proportional.
Step-by-step explanation:
Please refer to the attached figure
Let height of coach represents by AB = 6 feet
And shadow of coach represents by BC = 4 feet
Let height of goal post represents by DE = x feet
And Shadow of goal post represents by EF = 12 feet.
Since measurement of shadows are at same time. therefore ratio of height of coach and height of goal post must be same as ratio of shadow of coach and shadow of goal post.
⇒ 6/x = 4/12
⇒x = 72/4 = 18 feet
So goal post is not at regular height , since expected height is 20 feet while actual height is 18 feet . And if we consider value of x as 20 feet instead of 18 feet , ratio of corresponding sides will not match.
Hence correct answer is D. No, since the ratios of the corresponding sides are not proportional.