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Anettt [7]
3 years ago
12

(x^2-4x)^2+7x^2-28x+12=0

Mathematics
1 answer:
Valentin [98]3 years ago
7 0

Answer:

x^4-9x^2-28x=-12

Step-by-step explanation:

(x^2-4x)^2+7x^2-28x+12=0

(x^4-16x^2)+7x^2-28x=-12

x^4-9x^2-28x=-12

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The price of a sweatshirt at a local shop is twice the price of a pair of shorts. The price of a T-shirt at the shop is $4 less
fomenos

Answer:

The answer to your question is below

Step-by-step explanation:

Equation 1

                            $sweatshirt = 2 pair of shorts

                                    <u>  w = 2h</u>

Equation 2

$t-shirt = $pair of shorts  - $4

                                <u>      t = h - 4</u>

Equation 3

Total cost = 3 sweatshirts + 2 pairs of shorts + 5 t-shirts

<u>Total cost = 3w + 2h + 5t = 136 </u>    

5 0
3 years ago
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ASAP! NEED HELP!!!<br> ACTUALLY USA TESTPREP BUT STILL. PLEASE HELP!
Rus_ich [418]
What is the length of the longest lead? 1 3/4 

What is the length of the shortest lead? 1/4 

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8 0
3 years ago
Solve the system of equations. Show your work.<br> y = x^2 -3x +4 <br> x + y = 4
sesenic [268]

Answer:

x + y = 2 ,  y = x 2 − 4 x + 4

Replace all occurrences of  

y

with  x 2 − 4 x + 4

in each equation.

x 2 − 3 x + 4 = 2 y = x 2 − 4 x + 4

Solve for  

x

in the first equation.

x = 2 , 1 y = x 2 − 4 x+ 4

Replace all occurrences of  

x  with  2

in each equation.

y=0 x = 2

Replace all occurrences of  x

with  1

in each equation.

y = 1 x = 1

The solution to the system is the complete set of ordered pairs that are valid solutions.

( 2 , 0 ) ( 1 , 1 )

The result can be shown in multiple forms.

Point Form:

( 2 , 0 ) , ( 1 , 1 )

Equation Form:

x=2 , y = 0 x = 1 , y = 1

Step-by-step explanation:

3 0
2 years ago
Q=(c+d)/2 solve for d
UkoKoshka [18]
Q=(c+d)/2
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2×q=(c+d)
Subtract c from both sides to get rid of the c
2×q-c=d
Flip the equation around
d=2×q-c
8 0
3 years ago
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julsineya [31]

Answer:

10.

Step-by-step explanation:

AK = KB so

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Multiply through by 3:

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8x = 24

x = 3

So AK =  3(3) + 1 = 10.

4 0
3 years ago
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