This is to do with ratios, the idea behind it is that you see that the side of length 24 is an enlarged version of the side labelled 16. Using this you can see that the ratio of enlargement is 1.5, therefore x = 26/1.5 = 53/2
Answer: 900 times
Step-by-step explanation:
1 kilometer = 1000 meters
1.8 kilometers = 1000 × 1.8
1.8 kilometers = 1800 meters
2 meters = 1 click
1800 meters = 1800 ÷ 2
1800 meters = 900 clicks
The wheel will click 900 times when Ty walks 1.8 kilometers.
Hope this helped!
Answer:
1.844
Step-by-step explanation:
Given that final exam has 20 multiple choices questions. 10 questions have 5 choices and 10 questions have 4 choices.
So we divide the questions into two groups I and II.
The no of correct answers in I is called U.
U is binomial with n =10 and p = 0.2
Similarly II group, V the no of correct answers would be binomial
with n =10 and p = 0.25
Our random variable X= U+V
Obviously U and V are independent.
We have var (U) = npq = 1.6
Var (V) = npq = 1.875
Var(X) = Var(U+V)
= Var(U)+Var(V) since U and V are independent
= 3.4
STd dev (X) = 
Answer:
D) <c and <e
Step-by-step explanation:
<c and <e
Answer:
68.56
Step-by-step explanation:
if you add them together you will ger 68.56