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agasfer [191]
3 years ago
12

Circles pls help decent amount of points ​

Mathematics
1 answer:
Tatiana [17]3 years ago
6 0
Recall that with inscribed angles, they equal half of the arc they create.

Knowing this, take a look at Angle B. Notice that it's two lines are on the diameter? This means that the arc created is 180 degrees. Because it's an inscribed angle, we know that it's 90 degrees.

Also recall that the sum of all angles in a triangle equal 180 degrees.

Knowing this, we can add up all the angles:
(2x + 2) + 9x + 90 = 180

Simplify:
11x + 92 = 180

Subtract:
11x = 88

Divide:
x = 8

Now that we know the value of x is 8, we can input that into the equation of angle 1 in order to solve the question:
2x + 2 = 2(8) + 2

2(8) + 2 = 16 + 2 = 18

Angle 1 is 18 degrees.
-T.B.
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Answer: B

Step-by-step explanation:

pi is greater than all of the numbers and there is no selection for pi being greater and \sqrt{8} is 2.828 and so on which is greater than 4/3 which equals 1.333 and so on..

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There are 118 boys and 121 girls signed up for a volleyball league. The coaches first make teams of 9 players and then assign an
AleksandrR [38]
What the question here? If how many team are there it would go
118+121=9+10p
239=9+10p
Subtract 9 from both sides
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3 years ago
Find 131.2% of 477. Round to the nearest tenth.
Aliun [14]

131.2(477)=62,582.4 is the answer you're looking for

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2 years ago
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Please help me answer this.
adoni [48]

Answer:

See explanation

Step-by-step explanation:

        Statements                         Reasons

1. \overline{AD}\parallel \overline{BC}                                        Given

2. \angle ADB\cong \angle CBD      As alternate interior angles when parallel lines AD and BC intersect by ltransversal BD

3. \overline{AD}\cong \overline{BC}                                     Given

4. \overline{BD}\cong \overline{DB}                     Reflexive property

5. \triangle ADB\cong \triangle CBD                  SAS postulate

6.  \angle ABD\cong \angle CDB              Corresponding parts of congruent triangles are congruent

7. \overline{AB}\parallel \overline{CD}            Inverse alternate interior angles theorem

8 0
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babunello [35]

Answer:

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Step-by-step explanation:

First you have to combine the like terms which are 5.3x + 7.6x= 12.9x. Then you just rewrite the equation 12.9x-9. You just leave the 9 by it self beacuse thers no other like terms.

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