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skelet666 [1.2K]
2 years ago
9

Work out the size of x

Mathematics
1 answer:
topjm [15]2 years ago
7 0

Answer:

They are supplementary angles so they add up to make 180°

So you do the reverse

180°-100°=x

80°=x

Step-by-step explanation:

Please give me brainliest

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Suppose that E and F are two events and that N(E and F)=300 and N(E)=730. What is P(F|E)?
marin [14]

Answer:

\displaystyle\frac{30}{73}

Step-by-step explanation:

The formula of conditional probability is:

\displaystyle P(F|E)=\frac{P(E \cap F)}{P(E)}

And if we called N(U) the total number of possible outcomes, then remember by definition of probability:

\displaystyle P(E \cap F)=\frac{N(E \cap F)}{N(U)}\\\displaystyle P(E)=\frac{N(E)}{N(U)}

Then plugging them into the formula of conditional probability we get:

\displaystyle P(F|E)=\frac{\frac{N(E \cap F)}{N(U)}}{\frac{N(E)}{N(U)}}

Then we simplify and we get:

\displaystyle P(F|E)=\frac{N(E \cap F)}{N(E)}

We just plug the given info and we get:

\displaystyle P(F|E)=\frac{300}{730}=\frac{30}{70}

3 0
3 years ago
HELP ME ASAP 29 POINTS
Naya [18.7K]
The range means the y values. The points are written as: (x,y)

So, the right answer is {1,2,3} not the C because the range only needs to be told once.

Hope this helped and pls mark as brainliest!

~ Luna
6 0
3 years ago
-4 2/3+ 1 5/6 pls help me
Sauron [17]
Here is the work for that problem

4 0
3 years ago
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Find θ in the triangle. Round to the nearest degree.
chubhunter [2.5K]
I qould say the answer is b. 59.
3 0
3 years ago
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(2-3a)(8+5a) please help me
IceJOKER [234]

Answer:

-15a² -14a+16

Step-by-step explanation:

<h2>(2-3a)(8+5a)</h2>

2×8=16

2×5a=10a

-3a×8=-24a

-3a×5a=-15a²

16+10a-24a-15a² = -15a² -14a+16

7 0
2 years ago
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