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3 years ago

Simplify the algebraic expression by combining like terms.

Mathematics

2 answers:

Alja [10]3 years ago

7 0

Answer:

O 12x²

Step-by-step explanation:

-7x² + 19x²

x² (19 - 7)

= 12x²

Paladinen [302]3 years ago

5 0

Answer:

Step-by-step explanation:

Due to the fact that the exponents are identical, you would simply subtract.

-7+19 = 12x^2

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4 years ago

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Step-by-step explanation:

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3 years ago

Which equation describes the circle having center point (3,7) and the radius r=4 in Standard form

Annette [7]

The equation of circle in standard form is $(x - 3)^2 + (y - 7)^2 = 16$

<h3><u>Solution:</u></h3>

Given that circle having center point (3,7) and the radius r = 4

To find: equation of circle in standard form

<em><u>The equation of circle is given as:</u></em>

$(x - h)^2 + (y - k)^2 = r^2$

Where center (h,k) and radius r units

Given that center point (h , k) = (3, 7) and radius r = 4 units

Substituting the values in above equation of circle,

$(x - 3)^2 + (y - 7)^2 = 4^2\\\\(x - 3)^2 + (y - 7)^2 = 16$

Thus the equation of circle in standard form is $(x - 3)^2 + (y - 7)^2 = 16$

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3 years ago