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Mekhanik [1.2K]
3 years ago
5

Plz help i dont understand

Mathematics
1 answer:
Elina [12.6K]3 years ago
5 0
You can search in google if you want for the "inscribed quadrilateral conjecture"

and if you want... I can give you a quick proof of it

hmmm in short, if you inscribe a quadrilateral polygon in a circle
it will have 4 angles

each pair of opposite angles, are "supplementary angles", or they add up to 180°

so.. that said in yours, R+P = 180 and Q+O = 180 as well

you only need Q

so  \bf \measuredangle Q+\measuredangle O=180\qquad 
\begin{cases}
\measuredangle Q=2x+4\\\\
\measuredangle O=2x
\end{cases}\implies (2x+4)+(2x)=180

solve for "x"

how big is Q? well, 2x + 4 :)
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(a) Complete the ratio table shown. Show your work.
ella [17]
      I = Prnwhere I is the interest, P is the principal, r is the decimal equivalent of the given rate, and n  is the number of years. In this item, we assume that n is equal to 1. Solving for the interests,                $200:     I = ($200)(0.03)(1) = $6                $150:     I = ($150)(0.03)(1) = $4.5The difference between the two calculated interests is $1.5. 
Therefore, you could have earned $1.5 more if you invested $200 rather than $150. 
hope this helps (^>^)
3 0
3 years ago
Write an equation for a line parallel to y=2x-2 and passing through the point (1,1) Y=???? PLEASE HELP ANYONE
Rufina [12.5K]
The general equation for slope-intercept form is y = mx + b, where m = the slope of the equation, b = the y intercept, and x and y are your variables (and the coordinate points on the graph). 

Remember that for parallel lines, the slope, m, is the same for both equations. The equation you're given, y = 2x - 2, is already in slope-intercept form and the 2 in front of x is m, your slope. That means for whatever equation we come up with, m has to be 2. 

So far we know the equation for our parallel line is y = 2x + b. How do we figure out b? Plug in the (x, y) coordinate you're given, (1, 1) and solve for b:
y = 2x + b\\
1 = 2(1) + b\\
1 = 2 + b\\
b = -1

Now we know b = -1. Put that into our y = 2x + b equation to get the final equation of your parallel line: 
Your final answer is y = 2x - 1.

5 0
3 years ago
Tell whether the situation should be represented by a continuous graph or a discrete graph.
andre [41]
1) Discrete graph

2) Continuous graph

I hope this helps! I would check with someone else first though.
6 0
3 years ago
Kelly has 4 times as many songs on her music
Korolek [52]

Answer:

<h2>248 Songs</h2>

Step-by-step explanation:

<h3>Step 1; Set up an equation</h3>

4l + 6l + l = 682

<h3>Step 2: Add like terms</h3>

11l = 682

<h3>Step 3: Divide by 11</h3>

l = 62

Lou has 62 songs

<h3>Step 4: Multiply by 4</h3>

Kelly has 248 songs

<h3>Step 5: Check</h3>

Kelly has 248 songs

Lou has 62 songs

Tiffany has 372 songs

Is 248 4 times 62? ✔

Is 372 6 times 62? ✔

Is 248 + 372 + 62 = 682? ✔

<h3>Step 6: Answers</h3>

Kelly has 248 songs

Lou has 62 songs

Tiffany has 372 songs

I'm always happy to help :)

8 0
3 years ago
What is the equation of the graph below?
IgorC [24]
ANSWER

f(x) = (x  +  3)^{2}  - 1



EXPLANATION

The vertex of the graph is at


(-3,-1)


The equation of the graph in vertex form is given by the formula,



f(x) =  a{(x - h)}^{2}  + k


The above graph has a minimum point, hence
a >  \: 0

When we put these values into the equation we obtain,

f(x) = a(x -  - 3)^{2}   +  - 1


This implies that,

f(x) = a(x  +  3)^{2} - 1

The point (-2,0) lies on the line.


a( - 2 + 3)^{2}    - 1 = 0

a = 1


f(x) = (x  + 3)^{2}  - 1

The correct answer is D.
6 0
3 years ago
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