Answer:
1 day
Step-by-step explanation:
i don't know hot to explain it, but technically i multiplied 1.8 time 60 (because there is 60 minutes in an hour, which will equal 108. now i multiplied 108 times 24 to see how many pages he can read in a day and it gave me 2592 and he only has to read 300 pages. So technically he can read 8 or more books of 300 pages in a day.
This type of problem can be decided by looking at whether the function is positive or negative in the vicinity of the zeros. There are three roots: -12, -6, and 2 at which the function is clearly 0. Look at the four intervals the x axis:
interval x<-12: function is negative (just test using a number <-12, say, -13)
interval (-12,-6): function is positive
interval (-6, 2): function is negative
interval x>2: positive
From the above you deduce that at the roots the function must be crossing the x-axis (as opposed to just touching it) because the function value changes its sign every time.
I’m going to go with Exponential
First blank: not random Because he sent it to the top 5 students. Not random students throughout the grade.
second blank: I would guess not valid because it was not a random sample.
Answer:
$5.65
Step-by-step explanation:
1.20x0.50=0.60
1.50x2.50=3.75
0.60+3.75=4.35
10.00-4.35
5.65