Answer:
3:5 Is the ratio because there are five pieces of cheese.
Step-by-step explanation:
If there are 12 pieces, then you can add 4 and 3 together and get 7 and then you can take 7 from 12 and get 5 which is how many cheese pieces there are. Now you know that there are 3 slices of pepperoni and 5 pieces of cheese. Therefore the ratio is 3:5.
Answer:
True
Step-by-step explanation:
The hypothesis of a conditional statement is the "if" part. This means the hypothesis is "If a line is bisected."
The conclusion of a conditional statement is the "then" part. This means the conclusion is "then it is cut into two equal parts."
Answer:
11.725%
Step-by-step explanation:
Given that :
True value = 0.904 seconds
Measured time = 1.010 seconds
Experimental error :
(|measured value - True value | / true value) * 100%
(|1.010 - 0.904| ÷ 0.904) * 100%
= 0.106 / 0.904 * 100%
= 0.1172566 * 100%
= 11.725%
Correct Answer:Option A. 0.01
Solution:This is a problem of statistics and uses the concept of normal distributions. We need to convert the score of 90 into z-score and then find the desired probability from standard normal distribution table.
Converting 90 to z-score:
![z= \frac{90-83.6}{ \frac{8.7}{ \sqrt{10}} }=2.33](https://tex.z-dn.net/?f=z%3D%20%5Cfrac%7B90-83.6%7D%7B%20%5Cfrac%7B8.7%7D%7B%20%5Csqrt%7B10%7D%7D%20%7D%3D2.33%20)
Now we are to find the probability of z score being more than 2.33. From the z-table the probability comes out to be 0.01.
Therefore, we can conclude that the probability of class average is greater than 90 is 0.01.