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vovangra [49]
3 years ago
12

(4x – 3) + (–x + 5) =

Mathematics
2 answers:
tekilochka [14]3 years ago
7 0

Answer:

3x+2

Step-by-step explanation:

Volgvan3 years ago
5 0

Answer:

x=-0.4

Step-by-step explanation:

(4x-3)+(-x+5)=0

Distribute the positive

4x-3+x+5=0

Combine like terms

5x+2=0

5x=-2

x=-0.4

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vlada-n [284]

Answer:

<u>y = -x² + 4</u>

Step-by-step explanation:

The equation of the parabola in the vertex form is:

y = a (x-h)² + k

Where: (h,k) the coordinates of the vertex & a is a multiplier

The parabola has a vertex at ( 0,4 )

So, h = 0 , k = 4

∴ y = a (x-0)² + 4

∴ y = a x² + 4

The parabola passes through points ( 2,0 )

∴ 0 = a 2² + 4

∴ 4 a = -4  ⇒ a = -4/4 = -1

∴ y = -x² + 4

So, the equation of a parabola that has a vertex at ( 0,4 ) and passes through points ( 2,0 ) is <u>y = -x² + 4</u>

See the attached figure.

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Step-by-step explanation:

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2 years ago
Question 14 of 25
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Answer:

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Step-by-step explanation:

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