4 years ago

Sienna is solving the quadratic equation by completing the square.

2 answers:

7 0

If you would like to know the value of A, you can do this using the following steps:

3x^2 + 9x - 4 = 0
3x^2 + 9x = 4
A(x^2 + 3x) = 4

A = 3:
3 * (x^2 + 3x) = 4
3x^2 + 9x = 4

The correct result would be C: 3.

Ainat [17]4 years ago

3 0

Answer:

the answer is C.) 3

Step-by-step explanation:

i took the test : )

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Melanie has a chocolate chip cookie recipe that uses 2 cups of sugar for 6 dozen cookies. How much sugar will she need if he onl

Alborosie

Answer:

so since she is making 36 cookies you divide that by 6 since the sugar and you get 6 then you do 6x2 since the sugar and you get 12 :)

Step-by-step explanation:

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3 years ago

-(m - 6) = 3m + 14 Multiply m- 6 by -1

Angelina_Jolie [31]

For this case we have the following equation:

$- (m-6) = 3m + 14$

We apply distributive property on the left side of the equation, taking into account that:

$- * + = -\\- * - = +$

So:

$-m + 6 = 3m + 14$

Subtracting 3m from both sides of the equation:

$-m-3m + 6 = 14$

Equal signs are added and the same sign is placed:

$-4m + 6 = 14$

We subtract 6 from both sides of the equation:

$-4m = 14-6\\-4m = 8$

We divide between -4 to both sides of the equation:

$m = \frac {8} {- 4}\\m = -2$

Thus, the solution of the equation is $m = -2$

ANswer:

$m = -2$

5 0

3 years ago

Find the derivative of the function f(x)= (x^2-x) ^2

Virty [35]

(2x-1)(2x^2-2x) I THINK

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3 years ago

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What is the value 49,254

erastova [34]

40,000
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I'm guessing that's what you were looking for?

8 0

3 years ago

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8 1. Isolate x in the first equation: 2. Substitute the v

klemol [59]

X + 3y = 7
x = -3y + 7

2x + 4y = 8
2(-3y + 7) + 4y = 8
-6y + 14 + 4y = 8
-2y = 8 - 14
-2y = - 6
y = -6/-2
y = 3

x + 3y = 7
x + 3(3) = 7
x + 9 = 7
x = 7 - 9
x = -2

solution is (-2,3)

6 0

3 years ago

Read 2 more answers