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ankoles [38]
3 years ago
7

W^2-8w-20 factor the polynomial.

Mathematics
2 answers:
Mademuasel [1]3 years ago
6 0
Your answer would be (w+2)(w−10). If you want me to explain please don't hesitate to ask.
Illusion [34]3 years ago
5 0
W^2-8w-20= (w-10)(w+2)

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Evaluate this expression by distributing the multiplication over division: 5 x (7+4)
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Answer:

I think you can write like this:

5 x (5+2+4)

OR

5 x 11

Step-by-step explanation:

My own knowladge

Hope it helps

Put a thanks

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6 0
3 years ago
Solve the following system of equations:<br> y = 5/4x - 2<br> y = -1/4x + 19<br><br> x = ? and y = ?
Dmitry [639]

Answer:

1. y= 5 /4 x −2

2.x=−4y+76

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From a height of 50 meters above sea level on a cliff, two ships are sighted due west. The angles of depression are 61° and 28°.
Olenka [21]

Answer:

The ships are 66 meters apart.

Step-by-step explanation:

For the sake of convenience, let us label ships A and B

As shown in the figure, the distances to the ships from right triangles.

The distance to the ship A is d_1 and it is given by

tan (61^o)= \dfrac{50}{d_1}

d_1=\dfrac{50}{tan (61^o)}

\boxed{d_1= 27.71m}

And the distance to the ship B is d_2 and is given by

tan (28^o)= \dfrac{50}{d_2}

d_2=\dfrac{50}{tan (28^o)}

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Therefore, the distance d between the ships A and B is

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In other words, the ships are 66 meters apart.

8 0
3 years ago
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Solve the system of equations below algebraically <br> 2x+3y=6 and -5x+2y=4
Charra [1.4K]


Steps
I’m using elimination so I’m trying to get rid of y
To do that I multiply the first equation by 2 and the second by -3. Then solve
4x + 6x = 12
15x + -6x = -12
—————————
19x + 0 = 0
Divid by 19 to get x to one side. 0/19 is 0 so
X= 0
Plug that into an equation so 0 + 3y = 6
Divid by 3 and y = 2
Answer x = 0 y = 2
7 0
3 years ago
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