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xxTIMURxx [149]
3 years ago
5

Khan academy circles unit test

Mathematics
1 answer:
shutvik [7]3 years ago
3 0

What are you trying to say with that?

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∠ and ∠ are supplementary angles. If ∠ = (2 − 30)° and ∠ = 4, find the measure of the larger angle
Gala2k [10]

Answer:

We get ∠A =40° and ∠B = 140° and ∠B = 140° is measure of larger angle

Step-by-step explanation:

we have  ∠A = (2x − 30)° and ∠B = 4x, and we need to find measure of larger angle. And ∠A and ∠A are supplementary angles.

If the angles are supplementary there sum is equal to 180° i.e ∠A + ∠B = 180°

So,  First we have to find the value of x. and then we can determine larger angle.

We know: ∠A + ∠B = 180

2x-30+4x=180

6x-30=180

6x=180+30

6x=210

x=210/6

x=35

So, value of x is x=35

Now finding ∠A and ∠B

∠A = (2x − 30)°

∠A = (2(35) − 30)°

∠A = (70 − 30)°

∠A =40°

and ∠B = 4x

∠B = 4(35)

∠B = 140°

So, we get ∠A =40° and ∠B = 140° and ∠B = 140° is measure of larger angle

6 0
3 years ago
Plsss provide Explanation to IF you can...very confused!!
qaws [65]

Answer:

1 rotation/circumference = 879.2/10

87.9= 2x3.14xr

= 14

Step-by-step explanation:

brainliest would be appreciated

3 0
3 years ago
Read 2 more answers
The center of circle Q has coordinates (3,-2). If circle passes through R(7,1), what is the length of its diameter?(1) 50(3) 10(
dmitriy555 [2]
The answer is 3)...10
6 0
3 years ago
A.) 7<br> b.) 8<br><br> C) 5<br><br> d.) 6
nalin [4]
The answer would be D.) 6
5 0
2 years ago
You receive a $35 gift certificate from an online retailer that sells digital music and games. Each song costs $1.29 and each ga
Mars2501 [29]

Answer:

So, we purchased 9 songs and 4 games for 20.1$.

So, we purchased 10 songs and 6 games for 25.5$.

So, we purchased 10 songs and 10 games for 33.9$.

Step-by-step explanation:

We have receive a $35 gift certificate from an online retailer that sells digital music and games. Each song costs $1.29 and each game costs $2.10.

First case:

9\cdot 1.29=11.61\\\\4\cdot 2.10=8.4\\\\8.4+11.61=20.01

So, we purchased 9 songs and 4 games for 20.1$. We have 13 items  for 20.1$.

Second case:

10\cdot 1.29=12.9\\\\6\cdot 2.10=12.6\\\\12.9+12.6=25.5

So, we purchased 10 songs and 6 games for 25.5$. We have 16 items  for 25.5$.

Third case:

10\cdot 1.29=12.9\\\\10\cdot 2.10=21\\\\12.9+21=33.9

So, we purchased 10 songs and 10 games for 33.9$. We have 20 items  for 33.9$.

3 0
3 years ago
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