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grandymaker [24]
3 years ago
13

Math people please help!!!!!! what's the inverse of y=3x^2-27 with steps?????!!!!!!

Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0
Y = 3x2 + -27

Reorder the terms:
y = -27 + 3x2

Solving
y = -27 + 3x2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = -27 + 3x2
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A flute was originally priced at $500 but went on sale for 80% off. If Lena bought the flute and paid 6% sales tax, how much did
PIT_PIT [208]

Answer:

106$

Step-by-step explanation:

80% off of 500$ is 100$ and 6% of 100$ is 6$ add that and u get 106$

5 0
3 years ago
How do u do this.I need major help on it
Tpy6a [65]
Look for what 'y' is when t = 1 and t = 2. Go to the graph, look at 1 on the bottom axis and go up till you find the point, then go all the way to the left to see what the y-value is, in this case it should be 1200. If you do the same with t = 2, you will get 2400. So our two ordered pairs are:

(1, 1200), (2, 2400)

We can find the slope of these two points by plugging them into the slope formula:

\sf m=\dfrac{y_2-y_1}{x_2-x_1}

For points in the form of (x1, y1), (x2, y2). Plug in what we know:

\sf m=\dfrac{2400-1200}{2-1}

Subtract:

\sf m=\dfrac{1200}{1}

Divide:

\sf m=1200

This is the slope, so we can write the equation:

\boxed{\sf y=1200t}
4 0
3 years ago
Multiply or divide the following expression: Reduce all answers to lowest terms. Factor the following completely.
Semmy [17]

A function assigns the values. The value of f(-3) and f(3) + f(-3) is 8 and -8, respectively.

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

Given the function f(x)=-x²-4x+5, therefore, the value of f(x) when the value of x is -3 is,

f(-3) = -(-3)² - 4(-3) + 5

f(-3) = -9 + 12 + 5

f(-3) = 8

Now, the value of f(x) when the value of x is 3 is,

f(3) = -(3)²-4(3)+5

f(3) = - 9 - 12 + 5

f(3) = -16

further, the value of f(3) + f(-3) is,

f(3) + f(-3) = -16 + 8

f(3) + f(-3) = -8

Hence, the value of f(-3) and f(3) + f(-3) is 8 and -8, respectively.

Learn more about Function:

brainly.com/question/5245372

#SPJ1

7 0
2 years ago
WILL GIVE BRAINLIEST ASAP NEEDED PLS ANSWER HELP
Alika [10]

Answer:

$47,520

Step-by-step explanation:

A.

the area of a polygon is/

A= perimeter X apothem /2

A=500

apothem = 10

500 = (P * 10)/2

P =100

B. 100*7.95 = $795

C.

60*100= 6,000

6,000 * $7.95=

$47,520

7 0
3 years ago
What are the solutions of the system of equations y = –(x + 2)2 + 1 and y = 2x + 5?
Scilla [17]

Answer:

(–4, 5) and (–2, 1)

Step-by-step explanation:

8 0
2 years ago
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