Answer:
9 and 4 or D
Step-by-step explanation:
If you're not quite sure how to solve, let's find the answer by process of elimination.
If the area of a rectangle is 36 square inches, we can try option one.
7 * 6 = 42, not 36, so option A is incorrect.
Option two:
12 * 3 = 36 so option B is correct.
Option 3:
10 * 3 = 30 so option C is incorrect
Option 4:
9 * 4 = 36 so option D is correct
Now for perimeter:
9 + 4 + 9 + 4 = 18 + 8 = 26.
12 + 12 + 3 + 3 = 24 + 6 = 30
Thus, an answer of 9 and 4 is correct.
The answer is 2:3 because it is 12:18 simplified.
Correct answer is: P(x<6) is 0.123 and it is usual.
Solution:-
Given that the time a person takes to decide which shoes to purchase follows normal distribution. Which has mean = 8.21 minutes and standard deviation 1.90
Then probability of individual takes less than 6 minutes is
P(X<6) = 
= 
= 0.1230
Typically we say an event with a probability less than 5% is unusual.
But here P(X<6) = 0.123 is greater than 5% hence this is usual.
Answer:
Step-by-step explanation:
The answer is C because t = 2 so 75x2=150 and 150 + 10= 160.
