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3 years ago

How do you solve x^2 - 16x -34 = 2 by completing the square?

1 answer:

5 0

Complete the SquareSolve for x over the real numbers:(x - 8)^2 - 100 = 0
Add 100 to both sides:(x - 8)^2 = 100
Take the square root of both sides:x - 8 = 10 or x - 8 = -10
Add 8 to both sides:x = 18 or x - 8 = -10
Add 8 to both sides:Answer: x = 18 or x = -2

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ſ x - 5y = -9( 4x + 4y = - 12Step 1 of 2: Determine if the point (-4,1) lies on both of the lines in the system of equations by

Phoenix [80]

Given:

$\begin{gathered} x-5y=-9\ldots\ldots(1) \\ 4x+4y=-12\ldots\text{.}\mathrm{}(2) \end{gathered}$

The given point is (-4,1)

Let's check the ordered pair (-4,1) in the first equation

$\begin{gathered} x-5y=-9 \\ (-4)-5(1)=-9 \\ -4-5=-9 \\ -9=-9 \end{gathered}$

Hence, (-4,1) is a solution of the first equation x-5y=-9.

Now, let's check (-4,1) in the second equation.

$\begin{gathered} 4x+4y=-12 \\ 4(-4)+4(1)=-12 \\ -16+4=-12 \\ -12=-12 \end{gathered}$

So, (-4,1) is a solution of the second equation 4x+4y=-12.

Hence, (-4,1) is a solution of both equation in the system, then it is a solution to the overall system.

3 0

1 year ago

1. Given the picture below, which is the longest side?

True [87]

Answer:

Whichever side is opposite (across from) the 74 degree angle.

Step-by-step explanation:

4 0

2 years ago

Please answer !!!!!!!! Will mark brainliest whoever answers correctly !!!!!!!!

kirill115 [55]

Answer:

g(q) = 5/8q

Step-by-step explanation:

-7q + 12r = 3q - 4r

Add 4r to each side

-7q + 12r+4r = 3q - 4r+4r

-7q +16r = 3q

Add 7q to each side

-7q+7q +16r = 3q+7q

16r = 10q

Divide each side by 16

16r/16 = 10q/16

r = 5q/8

g(q) = 5/8q

5 0

3 years ago

Aline crosses the coordinates (-4,-5) and (2, 4). What is the slope of the line?

djyliett [7]

Answer: use the website desmos and plug in the cordinate it gives u the line automaticaly.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Please help first person to answer correctly gets 50 and marked as brainly

jeka94

Answer:

HOPE THIS HELPS!!

6 0

2 years ago