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3 years ago

Would someone help me

Mathematics

1 answer:

melamori03 [73]3 years ago

5 0

The angle AEC is opposite the angle DEB
the angle AEC is equal
9x + 12 = 2x + 30
9x - 2x = 30 - 12
7x = 18
x = 2.57

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3 years ago

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3 years ago

Read 2 more answers

Please give me the answer

Lunna [17]

Answer:

37°

Step-by-step explanation:

As we know the sum of angles of a triangle is 180 degrees.

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angle A + angle B + angle C = 180°

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3 years ago

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slavikrds [6]

Answer:

a. $\frac{1}{4}$

Step-by-step explanation:

We are asked to find the probability of getting 3 heads on 4 flips.

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}$

Since we know that flipping a fair coin has 2 equally likely possible outcomes, so flipping four coins will have $2*2*2*2=16$ possible outcomes.

Sample space of possible outcomes.

HHHH, HHHT, HHTH, HHTT, HTHH, HTHT, HTTH, HTTT,

THHH, THHT, THTH,THTT, TTHH, TTHT, TTTH, TTTT.

We can see that there are 4 favorable outcomes of getting heads.

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Therefore, the probability of getting 3 heads on 4 coins will be $\frac{1}{4}$ and option a is the correct choice.

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