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valentinak56 [21]
2 years ago
8

PLEASE HELP DUE TODAY!!What is the value of x?

Mathematics
1 answer:
tresset_1 [31]2 years ago
3 0

Answer:

x = 15

Step-by-step explanation:

The square makes it equal to 90. 90 - 30 = 60.

Make the 4x equal to 60.

4x = 60

x = 15

Hope I helped!!

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Which equation is quadratic in form? 2(x 5)2 8x 5 6 = 0 x6 6x4 8 = 0 7x6 36x3 5 = 0 4x9 20x3 25 = 0
Amiraneli [1.4K]

The equation that fits the standard form of a Quadratic equation is 2(x + 5)² + 8x + 5 +  6 = 0 which can be re-written as 2x² + 28x + 61 = 0.

<h3>What is a Quadratic Equation?</h3>

Quadratic equation is simply an algebraic expression of the second degree in x. Quadratic equation in its standard form is;

ax² + bx + c = 0

Where x is the unknown

From the given data, we check which of them fits the standard form of a quadratic equation.

  • 2(x + 5)² + 8x + 5+  6 = 0
  • x⁶ + 6x + 4  + 8 = 0
  • 7x⁶ + 36x³ + 5 = 0
  • 4x⁹ + 20x³ + 25 = 0

2(x + 5)² + 8x + 5 +  6 = 0

2( (x(x+5) + 5(x+5) ) + 8x + 5 +  6 = 0

2( x² + 5x + 5x + 25 ) + 8x + 5 +  6 = 0

2( x² + 10x + 25 ) + 8x + 5 +  6 = 0

2x² + 20x + 50 + 8x + 5 +  6 = 0

2x² + 20x + 8x + 50 + 5 +  6 = 0

2x² + 28x + 61 = 0

Therefore, the equation that fits the standard form of a Quadratic equation is 2(x + 5)² + 8x + 5 +  6 = 0 which can be re-written as 2x² + 28x + 61 = 0.

Learn more about quadratic equations here: brainly.com/question/1863222

#SPJ4

8 0
2 years ago
Lines a and b Are ?
shtirl [24]

Answer:

Perpendicular

Step-by-step explanation:

these lines intersect  and that is the reason why they are perpendicular



Perpendicular - lines that cross paths or intersect

5 0
3 years ago
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How do i simplify this
leonid [27]
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6 0
3 years ago
1. Sherrys age is nine less than six times Fred's age. Write an equation and find Sherrys age if Fred is ten years old.
artcher [175]

Answer:

1. x= 10x6-9 Sherry is 51 apparently

2. $71.40

Step-by-step explanation:

6 0
3 years ago
Pls help it is due today
MaRussiya [10]
It would be the third. X+3=y
4 0
3 years ago
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