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kolezko [41]
3 years ago
15

Can someone help plz

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer: x=-7

Step-by-step explanation:

1) The angles of a triangle are equal to 180

2) Add your angles together and set them equal to 180 like this:

x+59+x+51+84=180

3) Combine like terms:

2x+ 194 =180

4) Subtract 195 from both sides:

2x+ 194 =180

    - 194   -194

2x = -14

5) Divide by 2 on both sides

2x= -14

/2     /2

x= -7

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Find (f ∘ g)(4) when f(x) = -5x - 7 and g(x) = -6x 2 + 9x + 9.
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Answer:

\boxed{\sf \ \ \ 248 \ \ \ }

Step-by-step explanation:

Hello,

(fog)(4)=f(g(4)) \ \ \ and \ \ \ g(4)=-6*4^2+9*4+9=-51 \ \ so\\(fog)(4)=f(-51)=-5*(-51)-7=255-7=248

hope this helps

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1 year ago
What is 247*367 can you please help
I am Lyosha [343]

Answer:

90,649

Step-by-step explanation:

<em>Hey!</em><em> So I'm going to help you through this problem in two ways! One with a calculator where you'll just get the answer, and also handwritten, just in case you aren't able to use a calculator on a future assignment or test! :)</em>

By calculator, 247 × 367 = 90,649

I hand calculated in the image below, and with each step after multiplying the number in ones place in the bottom number (the lowest number) by each of the top numbers (the biggest number), I add an extra zero before adding my multiplication for each place!

<em>So! With 2 ways to do it depending on your class or preference, your answer is 90,649 :)</em>

<em />

Hope this Helps! :)

<em>Have any questions? Ask below in the comments and I will try my best to answer.</em>

-SGO

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