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3 years ago

What is the measure of the angle that complements a 30° angle? 30° 60° 75° 90°

Mathematics

1 answer:

Paha777 [63]3 years ago

3 0

Complementary angles always equal $90^{o}$

do 90 -30 to get 60
the answer is $60^{o}$

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Start at 3. Create a pattern that multiplies each number by 2 and then adds 1. Stop when you have five numbers.

liubo4ka [24]

3, 3*2+1, 7*2+1, 15*2+1, 31*2+1
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3 years ago

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A tutoring agency charges $20 for study materials, plus $40 an hour for tutoring. Which function can be used to find the total c

Fittoniya [83]

Answer:

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3 years ago

There are 10 marbles in a bag. Four are blue, 3 are black and 2 white and 1 red. If the marbles are not replaced once they are d

stich3 [128]

Given:

Given that there are 10 marbles in a bag. 4 are blue, 3 are black, 2 are white and 1 is red.

The marbles are selected by not replacing the drawn ones.

We need to the probability of selected a black marble and then a white marble without replacement.

Probability:

Let B denote the black marble.

Let W denote the white marble.

The probability of selecting a black marble is $P(B)=\frac{3}{10}$

The probability of selecting a white marble without replacement is $P(W)=\frac{2}{9}$

The probability of selecting a black marble and then a white marble without replacement is given by

$P(B \ and \ W)=P(B) \cdot P(W)$

Substituting the values, we get;

$P(B \ and \ W)=\frac{3}{10} \cdot \frac{2}{9}$

$P(B \ and \ W)=\frac{6}{90}$

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3 years ago

3. Nolan drew a right triangle. How many acute angles did he draw?

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3 years ago

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elixir [45]

I believe its 2 and 1/2

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4 years ago

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