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anzhelika [568]
2 years ago
5

I need help geometry ASAP. 30 points.

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
3 0

10a)  <u>x = 81</u>    <u>y = 30.5</u>

Isolate y

2y + 20 = x

2y = x- 20

y = x/2 - 10

Plug in for y

4y - 6 + 64 + x = 180

4(x/2 - 10) - 6 + 64 + x = 180

4x/2 - 40 -6 + 64 + x = 180

4x/2 + 18 = 180

4x/2 = 162

4x = 324

x = 81

Plug in for x

2y + 20 = x

2y + 20 = 81

2y = 61

y = 30.5

10b) <u>x = 47</u>

Isolate x

4x -12 = 3x + 35

x - 12 = 35

x = 47

11)

2. definition of parallelogram

3. < ABD ≅ < BDC

4. < CBD ≅ <BDA

6. I'm not 100% sure what this one is but I think it has something to do with the line of symmetry.

Hope this helps! ;)

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Please answer this question only if you know the answer!! 85 points and brainliest!
Anuta_ua [19.1K]

Answer:

The game is not fair

Step-by-step explanation:

Let us find the sample space.  It is the sum of the two spins

1+1 1+2 1+3  1+4

2+1 2+2  2+3  2+4

3+1 3+2 3+3 3+4

4+1  4+2  4+3  4+4

Adding

2,3,4,5

3,4,5,6

4,5,6,7

5,6,7,8

P(2) = 1/16

p(3) = 2/16

p(4) = 3/16

p(5) = 4/16

p(6) = 3/16

p(7) = 2/16

p(8) = 1/16

Player A gets a point if the sum is 6 or more

P (6,7,8) = P (6) + P(7) + P(8)  since they are independent event

              =( 3+2+1) /16 = 6/16 = 3/8

Player P gets a point if the sum is less than 6

P (2,3,4,5) =P (2) + P(3) + P(4 + P(5)

                 (1+2+3+4)/16 = 10/16= 5/8

Player B has a better chance of winning, so the game is not fair

7 0
3 years ago
Read 2 more answers
The sum of two and the quotient of a number x and five
Burka [1]
The sum of two and the quotient of a number x and fine.

sum= +

two= 2

quotient= divide

five= 5

2+ x/5 <- should look something like this

I hope this helps!
~kaikers


3 0
2 years ago
Read 2 more answers
If 9:x = x:4, then x is 6. <br><br> true or false
Sophie [7]
We subsituete

9:6=6:4
treat as fraction
9/6=6/4

9/6=3/3 times 3/2
6/4=2/2 times 3/2

3/2=3/2
this is TRUE
7 0
2 years ago
Read 2 more answers
Find a common difference of the arithmetic sequence -2, -1 4/5, -1 3/5, -1 2/5,
elixir [45]

Answer:

The common difference is \frac{1}{5} or 0.2

Step-by-step explanation:

Given:

Arithmetic Sequence -2, -1 4/5, -1 3/5, -1 2/5,

First term      = a₁ = -2

Second term = a₂ = \frac{-9}{5}

Third term     = a₃ = \frac{-8}{5}

Fourth term = a₄ = \frac{-7}{5}

To Find:

Common Difference = d = ?

Solution:

Formula for Common Difference d ,\textrm{common difference}= \textrm{Second Term} -\textrm{First Term}=\textrm{Third Term}-\textrm{Second Term}

\textrm{common difference} = a_{2}- a_{1}= a_{3}- a_{2}=a_{4}- a_{3}

∴ d = \frac{-9}{5}-(-2)\\d=\frac{-9}{5}+2\\d=\frac{1}{5}\\ \therefore d =0.2\\

The common difference is \frac{1}{5} or 0.2

6 0
3 years ago
Using a straightedge, or using technology, sketch an obtuse, scalene triangle. Make sure to include your sketch in your answer.
zubka84 [21]
Obtuse angles measure more than 90 degrees, scalene angles have three different side lengths. Would you like for me to include angle measure in the sketch?

8 0
3 years ago
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