Answer:
you want 4 correct and 16 incorrect
there are 20 questions
each question has four answers, so
P(right answer) = 1/4
P(wrong answer) = 3/4
----
Since you want 4 correct of 20 we have a combination of 20C4
This is a binomial problem where p = 1/4, q = 3/4 and we get
(20 "choose" 4)*(probability correct)^(number correct)*(probability incorrect)^(number incorrect)
putting numbers in we get
(20c4)*(1/4)^4*(3/4)^16
This gives us
~ .189685
Step-by-step explanation:
Answer:
<u>The answer is 692.</u>
Step-by-step explanation:
Number of cars with automatic transmissions = 356
Number of cars with power steering = 240
Number of cars with both of these options = 96
Number of cars that were manufactured with at least one of the two options = x
x = Number of cars with automatic transmission + Number of card with power steering + Number of cars with both of these options
x = 356 + 240 + 96
<u>x = 692</u>
<u>The number of cars manufactured with at least one of the two options is 692.</u>
10 to the 2nd power is 100 so that equation is saying 910 divided by 100 equals 9.1
Hope that helps
Answer:
The length of side JK is 4.7 units.
Step-by-step explanation:
Given:
Δ JKL is an Isosceles Triangle.
JL = 5x - 0.2
KL = x + 3.2
JK = 4x - 1.3
To Find:
The length of side JK = ?
Solution:
Δ JKL is an Isosceles Triangle. ......Given
JK = KL .........................Given
Substituting the given values we get
Now substituting 'x' in JK we get
The length of side JK is 4.7 units.
