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Ket [755]
1 year ago
12

I've done with my quiz, now I have to do the correction for extra point, bit my teacher required to explain how to solve it corr

ectly, but I don't know how. Please help me

Mathematics
1 answer:
lapo4ka [179]1 year ago
7 0

To solve this problem, we have to use the interior angles theorem which states that the sum of all three interior angles of a triangle must sum 180°.

Having said that, we express the following.

75+x+2x=180

Now, we solve for <em>x</em>.

\begin{gathered} 75+3x=180 \\ 3x=180-75 \\ 3x=105 \\ x=\frac{105}{3} \\ x=35 \end{gathered}

Then, we use this value to find the angle T.

m\angle T=2x=2(35)=70<h2>Therefore, the angle T is equal to 70°.</h2>
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Answer: yes the ratios 1:9 and 5:45 are equivalent.

Step-by-step explanation:

1:9*5:5=5:45

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2x^3-3x^2-11x+6 divide by x-3
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Answer: 2x^2+3x-2

Step-by-step explanation:

You can do long division, which is very very hard to show with typing on a keyboard. You essentially want to divide the leading coefficient for each term. Ill try my best to explain it.

Do \frac{2x^3}{x}=2x^2. Write 2x^2 down. Now multiply (x - 3) by it. Then subtract it from the trinomial.

2x^2*(x-3)=2x^3 -6x^2\\(2x^3 -3x^2-11x+6)-(2x^3-6x^2) = 3x^2-11x+6

Now do \frac{3x^2}{x} =3x. Write that down next to your 2x^2. Multiply 3x by (x - 3) to get:

3x(x-3)=3x^2-9x\\(3x^2-11x+6)-(3x^2-9x)=-2x+6

Your final step is to do \frac{-2x}{x} =-2. Write this -2 next to your other two parts

Multiply -2 by (x - 3) to get:

-2(x-3)=-2x+6\\(-2x+6)-(-2x+6)=0

Our remainder is 0 so that means (x - 3) goes into that trinomial exactly:

2x^2+3x-2 times

4 0
3 years ago
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Which of the following statements could be translated to the equation n-5=-2?
Klio2033 [76]

Answer:

The difference between a number and five is negative two.

Step-by-step explanation:

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=-2 means is negative two

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Solve inequality in interval notation Y^2&gt;-5y-9
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2 years ago
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tankabanditka [31]

Answer:

4

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