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3 years ago

The angle measures 42°, 50°, 130°, and 138° are written on slips of paper. You choose two slips of paper at random.

Mathematics

2 answers:

ratelena [41]3 years ago

5 0

Answer:

the chances are 1/4

Step-by-step explanation:

you have 1/4 chance you will pick the two angles that make 180 degrees or supplementary

topjm [15]3 years ago

4 0

Answer:

Step-by-step explanation:

<u>Combination of pairs of paper slips:</u>

4C2 = 4!/(2*2) = 6

A pair of 50 with 130 and 42 with 138 are the two pairs of supplementary angles.

<u>The probability is:</u>

P(supplementary pair) = 2/6 = 1/3

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Answer with explanation plz

Nostrana [21]

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3 years ago

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sveta [45]

Actual length of the room
6 * 40
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3 years ago

What number is39% of 120

noname [10]

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3 years ago

Read 2 more answers

A blouse that regularly sells for $28.50 is on sale for one-third off. what is the sale price of the dress?

egoroff_w [7]

You have to multiply the original price by 1/3 and then multiplying it by 2:
y=1/3x(2)
y=1/3(28.5)(2)
y=9.50(2)
y=19
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This is 2/3 of the original price (1/3 off).
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7 0

3 years ago

Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?

goldfiish [28.3K]

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

$x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}$

Replacing the numeric values:

$r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}$

The radius of the circle is √26.

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3 years ago