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Nitella [24]
3 years ago
11

Please help!!!! I dont know how to do this and also please explain!

Mathematics
1 answer:
Nataly [62]3 years ago
5 0
Hello!

Since AOC is a straight line it has an angle of 180

We put the two equations and have them equal 180

6x + 29 + 3x + 124 = 180

Combine like terms

9x + 153 = 180

Subtract 153 from both sides

9x = 27

Divide both sides by 9 

x = 3

Now we x into the equation of angle BOC

6(3) + 29 = 

Multiply

18 + 29 = 47

The answer is 47°

Hope this helps!
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Please help with these two math problems<br><br> 1. 7^x ÷ 7^y =<br> 2. z^10x^y ÷ z^5 =
IceJOKER [234]

Answer:

  1.  7^(x-y)

  2. z^5x^y

Step-by-step explanation:

The applicable rule of exponents is ...

  (a^b)/(a^c) = a^(b-c)

__

1.

  \dfrac{7^x}{7^y}=\boxed{7^{x-y}}

__

2.

  \dfrac{z^{10}x^y}{z^5}=x^yz^{10-5}=\boxed{z^5x^y}

8 0
3 years ago
Which table represents a direct variation? Table A x 4 6 8 10 y 7 9 11 13 Table B x 4 6 8 10 y 12 18 24 30 Table C x 4 6 8 10 y
Greeley [361]

Answer:

We conclude that 'Table B' represents a direct variation.

Step-by-step explanation:

We know that when y varies directly with x, the equation is

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality.

Table A

x     4 6 8 10

y     7 9 11 13

Finding k for all the pairs of x and y

k = y/x

k = 7/4, k = 9/6 = 3/2, k = 11 / 8, k = 13/11

As constant of proportionality 'k' does not remain constant.

Hence, table A does not represent a direct variation

Table B

x     4   6   8   10

y     12 18 24 30

Finding k all the pairs of x and y

k = y/x

k = 12/4 = 3, k = 18/6 = 3, k = 24/8 = 3, k = 30/10 = 3

As the constant of proportionality remains constant.

Therefore, the value of k = 3 for all the points in the table.

Hence, table B represents a direct variation.

Table C

x     4   6   8   10

y     1    3    5    7

Finding k all the pairs of x and y

k = y/x

k = 1/4, k = 3/6 = 1/2, k = 5/8, k = 7/10

As the constant of proportionality 'k' does not remain constant.

Hence, table C does not represent a direct variation.

Table D

x     4   6   8   10

y     3   3   3    3

Finding k all the pairs of x and y

k = y/x

k = 3/4, k = 3/6, k = 3/8, k = 3/10

As the constant of proportionality 'k' does not remain constant.

Hence, table D does not a direct variation.

Therefore, we conclude that 'Table B' represents a direct variation.

8 0
3 years ago
Read 2 more answers
Please Help! Brainliest Answer! Thank you
GrogVix [38]

Answer:

<h2>B.  27.73 ft.</h2><h2 />

Step-by-step explanation:

see attached image.

the distance between the two person standing on opposite

of a rectangular courtyard is by using Pythagorean theorem:

x² = 25² + 12²

x = \sqrt{625 + 144}

x = 27.73 ft.

4 0
4 years ago
Please answer this correctly
Aloiza [94]

Answer:

Height of this missing bar would be 1

Step-by-step explanation:

Since there is 1 and only 1 quantity between 80-99.

5 0
3 years ago
Read 2 more answers
10. In the figure below, ABCD is a square. DEFC, BCGH and AEFB are all
zysi [14]

Answer:

a) As sides of squares are always equal.

So,

BC=CD

2b+CF=a+b

CF= a+b-2b

CF= a-b

b) Area of rectangle CDEF= CDxCF

=(a+b)(a-b)

=(a²-b²)

Hope it helps :-)

6 0
3 years ago
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