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Fofino [41]
3 years ago
12

Y = 1.5x + 1 y = -0.25x - 6

Mathematics
1 answer:
solmaris [256]3 years ago
7 0

Answer:

x=−2.181818

Step-by-step explanation:

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Joel is designing a ramp for a bike trick. He draws this diagram. What is the value of x?
inn [45]

Answer:

x = -1

x = 5

Step-by-step explanation:

Use pythagorean theorem: a² + b² = c²

x² + (2x + 2)² = (2x + 3)²

Since these are quantities, you'll have to make them into quadratic equations.

(2x + 2)(2x + 2) = 4x² + 4x + 4x + 4

(2x + 3)(2x + 3) = 4x² + 6x + 6x + 9

x² + 4x² + 4x + 4x + 4 = 4x² + 6x + 6x + 9

Combine like terms

5x² + 8x + 4 = 4x² + 12x + 9

Move one side to set the equation equal to 0

x² - 4x - 5 = 0

Solve

x² - 5x + x - 5 = 0

x(x - 5) + 1(x - 5) = 0

(x + 1)(x - 5) = 0

x = -1, 5

<em>We</em><em> </em><em>can</em><em> </em><em>check</em><em> </em><em>that</em><em> </em><em>these</em><em> </em><em>are</em><em> </em><em>correct</em><em> </em><em>by</em><em> </em><em>plugging</em><em> </em><em>them</em><em> </em><em>in</em><em> </em><em>for</em><em> </em><em>x</em><em> </em><em>and</em><em> </em><em>seeing</em><em> </em><em>if</em><em> </em><em>they</em><em> </em><em>are</em><em> </em><em>equal</em>

<em>For</em><em> </em><em>example</em>

<em>(</em><em>-1</em><em>)</em><em>²</em><em> </em><em>+</em><em> </em><em>(</em><em>2</em><em>(</em><em>-1</em><em>)</em><em> </em><em>+</em><em> </em><em>2</em><em>)</em><em>²</em><em> </em><em>=</em><em> </em><em>(</em><em>2</em><em>(</em><em>-1</em><em>)</em><em> </em><em>+</em><em> </em><em>3</em><em>)</em><em>²</em>

<em>1</em><em> </em><em>=</em><em> </em><em>1</em>

3 0
3 years ago
A function hall charges a $250 fee to rent the hall plus $15 per guest Write an equation for this function
Strike441 [17]

Answer:

Write in y=mx+b, or slope intercept form.

y represents the total cost of the function hall.

x represents the number of guests.

y=250+15x

3 0
3 years ago
Quadrilateral LMNP has been translated to<br> form quadrilateral TVWY. What is the length<br> of YW?
Komok [63]

Answer:

f(x)=4x^3-5

Step-by-step explanation:

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4 years ago
Gene add 35 + 9 how can she solve using only equations to model her thinking explain​
Ulleksa [173]

She can add 35 and 9 which equals 44

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4 years ago
Someone please help me ​
AleksandrR [38]

Answer:

C. 5^10

Step-by-step explanation:

  • You can add the exponents together (3+7) if they have the same base (5)!
3 0
3 years ago
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