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FrozenT [24]
3 years ago
8

Chords AC and DB intersect at point E. Find the value of x.

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

the answer would be 9 so option B

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Please help ASAP!!! Thank you so much!!! Just want confirm my answer it is y=150x-50. A concession stand at a football game took
jekas [21]

Answer: You have the correct answer. It is y = 150x-50

Nice work on getting the correct answer. For anyone curious, the explanation is below.

=============================================

x = number of hours the stand is open

y = amount earned

(1,100) is from the fact the stand is open 1 hour and earns $100

(3,400) is due to the stand earning $400 after 3 hours.

Slope Formula

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

m = (400-100)/(3-1)

m = 300/2

m = 150 is the slope, and it is the amount earned per hour. It is the rate of change.

Use m = 150 and (x,y) = (1,100) to find the value of b as shown below

y = mx+b

100 = 150(1) + b

100 = 150 + b

100-150 = b

-50 = b

b = -50 is the y intercept and it is the starting amount they earn. The negative earning indicates that they spent $50 to set up the stand, which is the cost of buying the food, equipment, etc.

So we have m = 150 as the slope and b =  -50 as the y intercept.

Therefore, y = mx+b turns into y = 150x-50.

-------

As a check, plugging in x = 1 should lead to y = 100

y = 150x-50

y = 150(1)-50

y = 150-50

y = 100 and indeed it does

The same should be the case with (3,400). Plug in x = 3 and we should get y = 400

y = 150x-50

y = 150(3)-50

y = 450-50

y = 400, we have confirmed the answer by showing that the line y = 150x-50 goes through the two points (1,100) and (3,400).

3 0
3 years ago
Simplify the expression<br>(-2xyz^4)^2​
Delicious77 [7]

Answer

4x^2y^2z^8

Step-by-step explanation:

Just apply the exponent rule (-a)^n=a^n

7 0
3 years ago
Consider the equations 3x+2=14 and 2+3x=14 <br>Do they have the same solution? Why or why not?
mixer [17]
Yes, on the left side you are adding 3x+2 in one and 2+3x in the other. these add to the same number because addition is Commutative on the real numbers.
7 0
3 years ago
Consider functions f and g
Alex

Answer:

1)D 2) Can't see the function

7 0
2 years ago
The sum of the product of 3 and x and the number 15??​
Deffense [45]

Answer:3×x=15

x=15÷3.

X=5

<h2>5 is the correct answer</h2><h3><em>hope</em><em> it</em><em> helps</em><em> you</em><em> have</em><em> a</em><em> great</em><em> day</em><em> keep</em><em> smiling</em><em> be</em><em> happy</em><em> stay</em><em> </em><em>safe</em></h3>

<em>answer </em><em>is </em><em>5</em><em> </em><em>because</em><em> </em><em>1</em><em>5</em><em> </em><em>divided</em><em> </em><em>b</em><em>y</em><em> </em><em>3</em><em> </em><em> </em><em>is </em><em>5</em><em> </em><em>3</em><em>×</em><em>5</em><em>=</em><em>1</em><em>5</em><em> </em>

5 0
2 years ago
Read 2 more answers
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