Answer:
√7
Step-by-step explanation:
2/5, 0.404040 and 0.286 are all rational as they all can be expressed in fraction form (0.4040 can be expressed as 40/99 and 0.286 as 286/1000 (can simplify but I didn't)) sqrt7 is the only irrational number.
Answer:
56
Step-by-step explanation:
The mean is the average number of a data set.
To find the mean:
First, add all the numbers in the data set:
30 + 45 + 45 + 70 + 90 = 280
Next, divide the sum (280) by 5 (amount of values):
280 / 5 = 56
56 represents the mean of your data set.
Answer:
A number line going from 0 to 10. An open circle is at 7. Everything to the left of the circle is shaded.
Step-by-step explanation:
We have the following inequality:
-1.1x + 6.4 > -1.3
to solve it, we need to isolate x, as follows:
-1.1x > -1.3 - 6.4
-1.1x > -7.7
x < -7.7/-1.1 (notice that while dividing with a negative number, the sign changes)
x < 7
Basically put it in a calculator
Of the sixteen possibilities only one is HHHT, so the probability is
