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Mama L [17]
3 years ago
10

Circle O is shown below. The diagram is not drawn to scale. What is the measure of angle BAC?

Mathematics
2 answers:
mafiozo [28]3 years ago
5 0
56.5, since its (180 - 67)/2
allsm [11]3 years ago
4 0

Answer:

angle BAC = 56.5 degree

Step-by-step explanation:

In the given circle O, AO  and BO are the radius of the circle

AO  and BO are same

So the angle opposite of AO and BO are also same

Angle BAC = angle ABO

WE know the sum of angles in a triangle is 180 degree

Angle BAC + ABO + O = 180 degree

Angle O = 67 degree

angle ABO = angle BAC

BAC + BAC + 67 = 180

2BAC + 67= 180

Subtract 67 on both sides

2BAC = 113

Divide by 2 on both sides

BAC = 56.5

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enot [183]
Hi there!

For a 3,4,5 triangle the smallest angle measure would be 45 degrees.

Hope this helps !
6 0
3 years ago
If I needed to write in this format (A U B) how would i write it
MAXImum [283]

Answer:

n(AUB)=n(A)+n(B)–n(AnB)

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Step-by-step explanation:

This is the formula i have learned. Hope this will help u. U can use them according the question type.

7 0
3 years ago
In a class of 30 students, 6 have a brother and 12 have a sister. There are 14 students
Elena-2011 [213]
30 students

14 have no siblings

that leaves 16 with siblings

6 have brothers and 12 have sisters which = 18 so 2 of the students have both a brother and a sister

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3 0
3 years ago
2. John and Jen went to the farmers market to buy fruit. John bought 3 boxes of oranges and 9 boxes of cherries for $78. Jen bou
jenyasd209 [6]

Answer:

Let the cost of orange be X and cost of cherry be y

3x + 9y = 78

8x + 4y = 58

Solving equation using elimination method

multiplying eq 1 with 8 and eq 2 with 3

8(3x + 9y ) = 78(8)

3( 8x + 4y) = 3(58)

24x + 72 y = 624

24x + 12y = 174

subtracting,

60 y = 450

y = 7.5

3x + 9(7.5) = 78

3x + 67.5 = 78

3x = 78 - 67.5

3x = 10.5

x = 3.5

<h2>Box of orange = $3.5 </h2><h2>Box of cherry = $7.5</h2>
7 0
1 year ago
Find the critical value zα/2 that corresponds to a 98% confidence level.
SVETLANKA909090 [29]

A critical value is the point on the scale of the test statistic (z test in this case) outside which we reject the null hypothesis, and is taken from the level of significance of the test. The critical values can be obtained from the standard distribution tables for z and for this case, it is equivalent to:

critical value zα/2 at 98% confidence level = 2.326

Answer: 2.326

<span> </span>

4 0
3 years ago
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