3 years ago

Rewrite the expression using as few terms as possible X^2+5x-4x+20

Mathematics

1 answer:

Rasek [7]3 years ago

8 0

Answer:

it's x^2 +x +20

Step-by-step explanation:

5x - 4x = x

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Need help pls! Answer asap

Lostsunrise [7]

1. 130°

I don't remember too many specifics from my past math classes, but I always remembered this because that is an upside-down mirror of the 130° angle.

2. 50°

A straight line is 180°, and 180 - 130 = 50.

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3 years ago

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80 members decreased by 65%

LekaFEV [45]

Do a proportion
65/100= x/80

Cross multiply and divide
80 x 65= 5, 200
5, 200 divided by 100 is 52
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80-52= 28
Answer is 28 members

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3 years ago

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nignag [31]

Answer: X= 6 or X=-4

Step-by-step explanation:

$x^{2} -2x-24=0\\(x-6)(x+4)=0\\x-6=0 --> x=6\\x+4=---> x=-4$

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3 years ago

Please help with 7-9 they are related to the same circle

Andrej [43]

40º

7) In this problem, we can see that both tangent lines to that circle come from the same point O.

So, we can write out the following considering that there is one secant line DO and one tangent line to the circle AO

$\begin{gathered} m\angle1=\frac{1}{2}(160-80) \\ m\angle1=\frac{1}{2}(80) \\ m\angle1=40^{\circ} \end{gathered}$

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1 year ago

What type of polynomial is this

Crank

Answer:

trinomial..............

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3 years ago