Answer:
To express your answer in terms of pi, simply refrain from substituting pi's numerical value for its symbol in the equation. That way, your answer will look like xπ where x is whatever number you come up with, and π is simply a placeholder.
D(x)=1375-110x
when it reaches 0 it has reached destination
0=1375-110x
add 110x to both sides
110x=1375
divide both sides by 110
x=12.5
answer is 12.5 hour
With
a standard deviation of 6 minutes, we will test the hypothesis that σ = 6
against the alternative that σ < 6 if a random sample of the test
times of 20 high school seniors has a standard deviation s = 4.51. use a
0.05 level of significance.
<span /><span><span>
</span></span>
There are 6+5 marbles.
Of those, 5 are red.
The chances of drawing a red marble are 5/11
Since you replace the marble you drew, the chances each draw remain 5/11
You cannot draw two red marbles without drawing a red marble on your first draw, so the odds of you making a second draw are 5/11. The odds of that also being red are 5/11… but we only care about that 5/11ths the time
5/11*5/11=25/121
Answer:
67.2 and 94.1
Step-by-step explanation:
Let x represent one number and y represent the other
their sum is
x + y = 161.3 and the difference
x - y = 27.9 now add two equations
x + y + x - y = 161.3 + 27.9
2x = 188.2 divide both sides by 2
x = 94.1 to find the other number subtract this from 161.3
y = 161.3 - 94.1
y = 67.2
