I'm not sure but I think it is the third option
Multiply 8/3 by 3/5 and get 8/5
Answer:
Step-by-step explanation:
Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.
P(completing exam before 1 hour)
= P(less than an hour) = P(X<60)
=P(Z<
)
=0.5-0.34=0.16
i.e. 16% of students completed the standardized exam.
Answer:
Step-by-step explanation:
v = 3 (r - 1)
v = 3(- 1 - 3) <----- Here we are substituting R
v = -3 - 9 <---- Here we expanded the bracket
v = -12 <--- This is your answer, because -3 -9 is equal to -12
Answer:
x = 25 B = 65˙ C = 50˙
Step-by-step explanation:
Triangle Sum- All three angles in a triangle add up to 180˙
65 + (3x - 10) + (2x) = 180
65 - 10 +3x + 2x = 180 Combine like terms
55 + 5x = 180 Move the 55 over to combine w/180.
<u>- 55 -55 </u>
<u>5x</u> = <u>125</u> Divide by 5
5 5
x = 25 Answer
B C
(3x - 10) (2x)
(3*25 - 10) (2* 25)
65˙ 50˙
