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docker41 [41]
3 years ago
12

Set up equation for the following angles

Mathematics
2 answers:
maw [93]3 years ago
4 0
Add each angle for the question and make them equal 180

Example: number 15
(23x-5)+(21x+5)=180
valentinak56 [21]3 years ago
3 0
I think it's 23x-5=21x+5
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How do I do this? Please help instead of just an answer. Brainliest.
nasty-shy [4]

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You just need to multiply the value by 5.

8 0
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Help me please asap ‘,:’
grin007 [14]

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0.75

Step-by-step explanation:

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Tell whether the data in the table can be modeled by a linear equation. Explain.
anastassius [24]

Answer:

y = -3x + 7

Step-by-step explanation:

Choosing two points from the given table:

Let (x1, y1) = (-3, 16)

(x2, y2) = (-1, 10)

Plug these given values into the slope formula:

m = (y2 - y1)/(x2 - x1)

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   = -6 / (-1 + 3)

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Therefore, the slope is -3.

Next, choose one of the points and plug into the <u>point-slope form</u>:

Let's use (-1, 10) as (x1, y1):

y - y1 = m(x - x1)

y - 10 = -3(x - (-1))

y - 10 = -3(x + 1)

y - 10 = -3x - 3

Add 10 on both sides to isolate y:

y - 10 + 10 = -3x - 3 + 10

y = -3x + 7

8 0
3 years ago
What is the value of m in the figure below in this diagram abd bcd
oee [108]

\triangle BCA\ \text{and}\ \triangle DCB\ \text{are similar (AAA). Therefore the sides are in proportion:}\\\\\dfrac{BC}{CD}=\dfrac{AC}{BC}\\\\\text{We have}\\\\BC=m\\CD=7\\AC=7+11=18\\\\\text{Substitute:}\\\\\dfrac{m}{7}=\dfrac{18}{m}\qquad\text{cross multiply}\\\\m^2=(7)(18)\\\\m^2=126\to\boxed{m=\sqrt{126}}\to\boxed{A.}

6 0
3 years ago
What is 2 1/4 equal to
Crazy boy [7]

Answer:

2.25

Step-by-step explanation:

divide

5 0
3 years ago
Read 2 more answers
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