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mihalych1998 [28]
2 years ago
15

Please help i will give brainliest

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
7 0

Answer:

it is 42 degrees

Step-by-step explanation:

the angle x is the same as the parallel angle

enot [183]2 years ago
5 0

Answer:

x = 48

Step-by-step explanation:

First, We know that it a supplementary angles

Note:

Supplementary angles are angles measures add up to 180 degrees.

Complementary angles are angles measure add up to 90 degrees.

Hence, it 180 degrees.

Then You see that "42 degrees" Hence 180 - 42 =138 Then You see that Box in the corner that is a complementary angles which also means 90 degrees..

138 - 90 =48

Therefore it 48, 90 ,138

Now Let's find x..{ I have a picture below}
You see the red line?  It equal to the 42 degrees..

The Blue box lines makes  a 90 degrees..

Hence it the same 180 - 42 - 90=48

Thus, x = 48

[RevyBreeze}

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1) Given P(A) = 0.3 and P(B) = 0.5, do the following.
Delicious77 [7]

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Step-by-step explanation:

1) Given

P(A) = 0.3 and P(B) = 0.5

Let us learn about a formula:

P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\OR\\P(A\cup B) = P(A) +P(B) -P(A\cap B)

(a) If A and B are mutually exclusive i.e. no common thing in the two events.

In other words:

P(A\ and\ B) = P(A \cap B) = 0

Using above formula:

P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\\Rightarrow P(A\ or\ B) = 0.3 + 0.5 -0 = \bold{0.8}

(b)  P(A and B) = 0.2

Using above formula:

P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\\Rightarrow P(A\ or\ B) = 0.3 + 0.5 -0.2 = \bold{0.6}

*************************************

1) Given

P(A) = 0.4 and P(B) = 0.2

Let us learn about a formula:

P(A\ and\ B) = P(B) \times P(A/B)  for dependent events

P(A\ and\ B) = P(A) \times P(B) for independent events.

(a) If A and B are independent events :

Using the above formula for independent events:

P(A\ and\ B) = 0.4 \times 0.2 = \bold{0.08}

(b)  P(A / B) = 0.7

Using above formula:

P(A\ and\ B) = P(B) \times P(A/B) = 0.2 \times 0.7 = \bold{0.14}

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3 years ago
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