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3 years ago

Simplify. (2x^2 + 7x + 10) - (x^2 + 2x - 9)

Mathematics

1 answer:

Murrr4er [49]3 years ago

7 0

Subtract like terms:

2x^2 - x^2 = x^2

7x - 2x = 5x

10 - -9 = 10+9 = 19

The answer is: x^2 + 5x +19

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Step-by-step explanation:

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2 years ago

Using the method of completing the square, put each circle into the form

tatiyna

Answer:

Standard form: $(x-\frac{1}{2})^2 + (y-0)^2 = 15$

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Radius: $r =\sqrt{15}$

Step-by-step explanation:

The equation of a circle in the standard form is

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Divide both sides of equality by 4

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Now we complete square for variable x.

Take the coefficient "b" that accompanies the variable x and divide by 2. Then, elevate the result to the square:

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Now add $(\frac{b}{2})^2$ on both sides of the equality

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Factor the expression and simplify the independent terms

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3 years ago

Hey! i just need you to tell me how you got your answer! thank you!

Yakvenalex [24]

5 + 27 ÷ 3 / 6 + 1 - Remember PEMDAS, so start by dividing 27 by 3.

5 + 9 / 6 + 1 - Next, add

14 / 7 Lastly, Divide.

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4 years ago

A=214 b=35 c=128 d=107

hram777 [196]

Answer:

d=107

Step-by-step explanation:

7+5^2 *4

PEMDAS

Since there are no parentheses, we do exponents next

7+25*4

Then we multiply

7+100

Then we add

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3 years ago

Read 2 more answers