EXPLAIN + BRAINLIEST Find the difference: (3x2 + 4x - 6) - (5x2 - 8x - 3)
1 answer:
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Answer:
36% loss
Step-by-step explanation:
To calculate percentage loss
× 100%
loss = £50 - £32 = £18, then
percentage loss = × 100% = 18 × 2 % = 36%
Answer:
The two events are dependent.
the probability that events A and B both occur is:
Step-by-step explanation:
Consider the provided information.
Event A: When a page is randomly selected and ripped from a 2424-page document and destroyed, it is page 2020.
Event B: When a different page is randomly selected and ripped from the document, it is page 1616.
Part(A)
The occurring of one event affects the probability of the other event.
Because if we ripped one page then the probability of ripping second page will going to change as the size of sample space will decrease.
For example: The document has 2424 page, that means size of sample space is 2424. If we ripped another page, the sample size will be 2423. That means event B is depending on event A.
Thus, the two events are dependent.
Part(B)
The probability that events A and B both occur.
If we select a page randomly from 2424-page document, the probability will be: 1/2424
Now we have 2423 pages left in the document as one page is destroyed.
The probability of selecting another page is: 1/2423.
Thus, the probability that events A and B both occur is:
Answer:
Lori will have cavity if she brushed for
each night.
Step-by-step explanation:
As the question suggests cavities developed varies inversely with the number of seconds spent on brushing.
Lets take the terms as ,where
is the constant of proportionality.
And
c = Number of cavities developed each year
t = Number of minutes spent on brushing per night
Now we will plugging the values of the given terms and find the value of ,for this we can re-arrange it as...
and
Now as Lori will increase her brushing time so as the cavity will decrease.
So for this we have been given, and
.
As
So as per Paul's observation if Lori brushed for at night she will have
cavity on that year.