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3 years ago

What are the points of intersection of -x^2+9x-3 and y=3x

Mathematics

1 answer:

ELEN [110]3 years ago

8 0

Answer:

Easiest and fastest way is to graph both equations into a graphing calc and trace the graph to where they intersect.

Alternatively, you can use substitution to solve for your answer.

Step-by-step explanation:

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Rewrite the equation to isolate the variable.. df= g- 10 for d

ehidna [41]

Df = g - 10

To solve for d, divide both sides by f.

df / f = (g - 10) / f

d = (g - 10) / f

I hope this explains it.

6 0

3 years ago

Buying one movie ticket online costs $16.50. Two tickets cost $30.50. Assuming that the relationship is linear, use the drop dow

HACTEHA [7]

Answer:

$C(n)=14n+2.50$

Step-by-step explanation:

Let

n -----> number of tickets

C ----> represent the cost of buy n tickets online

we have the ordered pairs

(1,16.50) and (2,30.50)

<em>Find out the slope of the linear equation</em>

The formula to calculate the slope between two points is equal to

$m=\frac{C2-C1}{n2-n1}$

substitute the values

$m=\frac{30.50-16.50}{2-1}$

$m=14$

<em>Find the equation of the line in slope intercept form</em>

$C=m(n)+b$

we have

$m=14$

$point(1,16.50)$

substitute

$16.50=14(1)+b$

$b=16.50-14$

$1b=2.50$

substitute

$C(n)=14n+2.50$

The domain of the function is all positive integers (whole numbers) including zero

{0,1,2,3,4,...}

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3 years ago

How do you write 9/2 as a percentage?

olga55 [171]

9/2 would be converted to 450%

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Please explain how to do this well I really need help

astraxan [27]

Simply the radical expression

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3 years ago

What is Gama rays? ‎ ‎

Arte-miy333 [17]

Answer:

Step-by-step explanation:

penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.

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2 years ago

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