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Tatiana [17]
2 years ago
8

Solve for x. x^2 + 4x + 4 = 8 

Mathematics
1 answer:
Lerok [7]2 years ago
3 0

Answer:

Work:

x^2 + 4x - 4 = 8

x^2 +4x -12 = 0

(x + 6) (x - 2) = 0

x = -6 and 2

Answer: first option

I hope this helps!

Step-by-step explanation:

did this on edge :)

hope this helps ~ xoxo ANGIEEE CRAZZZY :3

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what is the equation of the line that is parallel to 6x-2y=4+6y and passes through the point (8, -16)?
Alisiya [41]

Answer:

y=\frac{3}{4}x-22

Step-by-step explanation:

We are given;

  • The equation of a line 6x-2y=4+6y
  • A point (8, -16)

We are required to determine the equation of a line parallel to the given line and passing through the given point.

  • One way we can determine the equation of a line is when we are given its slope and a point where it is passing through,

First we get the slope of the line from the equation given;

  • We write the equation in the form y = mx + c, where m is the slope

That is;

6x-2y=4+6y

6y + 2y = 6x-4

8y = 6x -4

We get, y = 3/4 x - 4

Therefore, the slope, m₁ = 3/4

But; for parallel lines m₁=m₂

Therefore, the slope of the line in question, m₂ = 3/4

To get the equation of the line;

We take a point (x, y) and the point (8, -16) together with the slope;

That is;

\frac{(y--16}{x-8}=\frac{3}{4}

4(y+16)=3(x-8)\\4y + 64 = 3x - 24\\4y=3x-88\\ y=\frac{3}{4}x-22

Thus, the equation required is y=\frac{3}{4}x-22

4 0
3 years ago
You put $939 into an investment at 8% for 6 years. What will the balance be at the end of 6 years?
WINSTONCH [101]

Answer:

At simple interest it will be 939+939×6×0.08=$1389.72.

Step-by-step explanation:

4 0
3 years ago
The perimeter of a playing field for a certain sport is 334ft. The field is a rectangle, and the length is 47 ft longer than the
babunello [35]

Answer:

The dimensions of the rectangle = 60ft by 107ft

Where 60 ft = Width of the playing field

107ft = Length of the playing field

Step-by-step explanation:

A playing field is Rectangular is shape, hence,

The formula for Perimeter of a rectangle = 2(L + W)

P = 334 ft

L = 47 + W

W = W

Hence we input these values in the formula and we have:

334 = 2(47 + W + W)

334 = 2(47 + 2W)

334 = 94 + 4W

334 - 94 = 4W

240 = 4W

W = 240/4

W = 60

There fore, the width of this playing field = 60 ft

The length of this rectangle is calculated as:

47 + W

47 + 60

= 107 ft

The length of this playing field = 107ft

Therefore the dimensions of the rectangle = 60ft by 107ft

6 0
2 years ago
How much is 13,200 feet in miles
Naddika [18.5K]

Answer:

2.5 miles

Step-by-step explanation:

5 0
3 years ago
I’m usually pretty good at these but I cant seem to figure this one out. My answer is 40 every time and I’ve worked it 3 times
slava [35]
Hope this answer helps :)

3 0
2 years ago
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