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IrinaK [193]
3 years ago
10

ABCD is a square. What is the measure of angle BAC?

Mathematics
2 answers:
bezimeni [28]3 years ago
8 0
Angle BAC is 45 degrees. The diagonal bisects angle BAD and since all angles in a square are 90 degrees, half of 90 is 45 degrees.
horrorfan [7]3 years ago
5 0
It's 45° because each angle is 90 so div by 2
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Answer:

For this question, the options are written the wrong way. In each of the answers below, the correct form of the question will be added.  

The answers are:

1. e) 4/9

2. a) 1/16

3. 980 girls

4. c) 2/3

5. d) 1/13

6. a) 42 boys

7. d) 1/21

8. b) 1/6

Step-by-step explanation:

1. What is the probability of getting a number greater than 2 on two rolls of a six-sided die both times?

a) 4/3

b) 2/6

c) 4/6

d) 3/6

e) 4/9

The correct answer is e) 4/9 because the probability of getting a number greater than 2 in two rolls is 4/6 * 4/6 =16/36 = 4/9

2. A fair coin is tossed four times. What is the probability that it will be heads every time?

a) 1/16

b) 4/2

c) 2

d) 4/16

e) 1

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c) 2/3

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If the die is rolled twice there are 12 possible outcomes and 8 of those outcomes can be 5 or an even number. The probability is 8/12 = 2/3

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a) 4/13

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In a standard deck, there are 13 jack cards, the probability of getting a jack the first time is 1/13

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b) 10

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The number of boys that will be picked for the team is 210*20% = 42

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a) 2/21

b) 1/42

c) 2

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The probability of getting picked for one of the 2 positions is 2/42 = 1/21

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c) 0

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e) 1/36

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