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Marysya12 [62]
2 years ago
15

I need help plz with this.

Mathematics
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

if you take away 94.75-72.85 you will get 21.90 but i dont know how much higher

i hope i helped

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9x + 27 = –72 what is x
Brilliant_brown [7]
9x + 27  = -72
       - 27 = - 27
        9x  = - 99
      9x/9 = -99/9
          x  = -11
5 0
2 years ago
Events a, b, and c in a sample space have p(a)=0.2, p(b)=0.4, and p(c)=0.1. find p(a ∪ b ∪
Julli [10]
If A and B are mutually independent, then \mathbb P(A\cup B)=\mathbb P(A)+\mathbb P(B) and \mathbb P(A\cap B)=0.

If A and C are independent, then \mathbb P(A\cap C)=\mathbb P(A)\cdot\mathbb P(C). Ditto for B and C.

The inclusion/exclusion principle says that

\mathbb P(A\cup B\cup C)=\mathbb P(A)+\mathbb P(B)+\mathbb P(C)-\mathbb P(A\cap B)-\mathbb P(A\cap C)-\mathbb P(B\cap C)+\mathbb P(A\cap B\cap C)

Since A and B are mutually exclusive, their intersection is the empty set. It then follows that A\cap B\cap C also is the empty set, so the last probability is also 0.

Plug in what we know:

\mathbb P(A\cup B\cup C)=0.2+0.4+0.1-0-0.2\cdot0.1-0.4\cdot0.1+0

\implies\mathbb P(A\cup B\cup C)=0.64
3 0
2 years ago
Solve for n: <br> 4+ n/3 &lt;6
Goshia [24]

Answer: n < 6

Step-by-step explanation:

multiply both sides.

4 + n/3 < 6

move the constant to the right.

12 + n < 18

calculate.

n < 18 - 12

solution:

n < 6

7 0
3 years ago
Number 1 is the question. the second picture is the one i want you to draw the answer on please ty
laiz [17]
So 4:30 and then the second one is 15:75
4 0
2 years ago
Round this number to nearest 10,000. 4,278,003
s2008m [1.1K]

Hi there!

To Round of the number given, first you have to find the ten thousands place on the given number. Started from ones, tens, hundreds, and moving on, the number in the ten thousands place would be 7 in your case.

Now, looking to the number on the right of 7 which is 8, it is bigger than 5, and therefore, we round up 7 and let 8 go to zero.

Applying this, your answer would be 4,280,003

Hope this helped!

4 0
3 years ago
Read 2 more answers
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