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tekilochka [14]
3 years ago
13

If line AD is a tangent to circle B at point C, and m∠ABC = 55º, what is the measure of ∠BAD?

Mathematics
2 answers:
Anna11 [10]3 years ago
8 0

Answer:

The correct answer is 145.

Step-by-step explanation:

I took the quiz and it was right

4vir4ik [10]3 years ago
7 0
The tangent AD at point C forms a right angle to circle B, such as ∠ACB=90° and ∠ABC=55°.

We also know that the summation of all angles in a triangle is 180°. Thus we have the expression below:
180°=∠ABC + ∠ACB + ∠BAD
180°=55°+90°+∠BAD
∠BAD=35°

Therefore, the answer is 35°.

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Marizza181 [45]

Answer:

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BigorU [14]

The probability that Gina randomly selected two red marbles is 1/19

<u>Explanation:</u>

Total number of marbles = 7 + 5 + 8

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The probability of getting two red marbles in the fraction form is given as:

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P(first red marble) = \frac{5}{20} = \frac{1}{4}

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P(two red marbles) = P(first) X P(second)

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6 0
3 years ago
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2 years ago
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Step-by-step explanation:

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3 years ago
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