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astra-53 [7]
3 years ago
5

Solve the following quadratic equation for all value of c i'm simplest form 5(x-2)^2=20

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
8 0

Answer:

x=-2 and x=0

Step-by-step explanation:

5(x-2)^2 =  20; divide by 5 both sides

(x-2)^2 = 4; take the square root of both sides

(x-2) = ±2, now set it equal to positive 2 and negative 2

x-2 = 2

x=4

AND

x-2 = -2

x=0

atroni [7]3 years ago
6 0

Answer:

The values of x is 0 and 4.

Step-by-step explanation:

You have to divide 5 by both sides;

5 {(x - 2)}^{2}  = 20

{(x - 2)}^{2}  = 4

You have to expand the brackets;

{x}^{2}  - 4x +4 = 4

{x}^{2}  - 4 x = 0

You have to factorize;

x(x - 4) = 0

Lastly, you have to solve it;

x = 0

x = 4

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Pls help I will mark braniliest
lidiya [134]

Answer:

y=x+2 will be a positive upwards graph that has a slope of 1 this means it will cross diagonally perfectly it won't change directions and it won't  go up more than down or left more than right. It will cross the x axis at 2.

y=-x+2 It will be the same thing but this time starts from the top left and goes down gets to x axis at positive 2 again

y=|x|+2 This will go down from top left again and hit positive 2 on y axis then go back up making a v it does not curve and it does have a perfect slope of 1 making it easy to graph.

Step-by-step explanation:

7 0
2 years ago
F(x)=(x-2)(x+4) what is the y-intercept and x-intercept
GarryVolchara [31]

Answer:

x-int=-8, y-int=2,-4

Step-by-step explanation:

for the x-int

you set x to 0 then solve the equation to get -8

for the y-int

you set y(or in this case f(x)) to 0 then solve. You solve this by spilting this into 2 linear equations; x-2=0 and x+4=0, then you solve them both to get the two y-intercepts, 2 and -4

6 0
3 years ago
The circumference (C) of a circle is 16 cm. Which formula can you use to find the diameter (d) if you know that C = π d?
Zigmanuir [339]
You should get 5.09! Hope this helps!!!
5 0
3 years ago
Find the distance between the points (-3, 11) and (5, 5).
marshall27 [118]
Formula for distance between two points:

d  = √((x₂-x₁)² + (y₂-y₁)²)

Let point 1 be (-3, 11) and point 2 be (5, 5)

Therefore x₁ = -3, y₁ = 11, x₂ =5, y₂ = 5, and substituting in the formula above.

d = √((x₂-x₁)² + (y₂-y₁)²)

   = √((5- -3)² + (5-11)²)

   = √((5+3)² + (5-11)²)

   = √((8)² + (-6)²)          8² = 8*8 = 64, (-6)² = -6*-6 = 36

   = √(64 + 36)

  = √(100)

  = 10

Distance = 10 units.
5 0
3 years ago
I need help with this problem quick.
KatRina [158]

The absolute value - or distance from zero, is fairly simple to find. Make your final answer positive to find it.


|\frac{10-7}{4}| = |\frac{3}{4}| = |.75| = .75

|\frac{-15+8}{6}| = |-\frac{7}{6}| = |-1.2| = 1.2

8 0
3 years ago
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