You wrote the equation wrong- he starts with 9 pencils so that's a constant and he sharpens 11 pencils for every minute. The equation would be 9+11x with x being the amount of minutes, which in this case is 7. So you just substitute and solve.
9+11x
9+11(7)
9+77
86
Hope this helps!
There are 3 outcomes in each game.
For 1st game, there can be either win (W), lose(L) or Tie (T).
For each of these outcome, there can be 3 possible outcomes in 2nd game i.e. either W, L or T
So, the tree diagram will have 3 branches, each further dividing into 3 more branches(nodes)
Thus option C gives the correct tree diagram.
Divide the width of the shelf by the widthof the books.
First rewrite feet as inches:
1 foot = 12 inches.
3 1/2 feet x 12 inches per foot = 42 inches
Now divide the width of the shelf by the width of the book:
Now you have 42 / 5/8
When dividing by a fraction flip the second fraction over and change division to multiplication:
42 x 8/5
Now Multiply across:
7/2 x 8/5 = (42 x 8) /5 = 336/5 = 67.2
Round to the nearest whole number: 67
The shelf will hold 67 books.
Answer:
b. 0.12
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What is the probability that a seed will take more than 720 hours before germinating?
This is 1 subtracted by the pvalue of Z when X = 720. So



has a pvalue of 0.88.
1 - 0.88 = 0.12
So the correct answer is:
b. 0.12
Answer:
The second one or B- "He did not find the prime factors of 4."
Step-by-step explanation:
I got it right on Edge2020