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ololo11 [35]
3 years ago
13

Simplify (7x) - (-2x). O 5x 0 -5x O 9x 0-9x NEXT QUESTION 2 ASK FOR UEL

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

9x

Step-by-step explanation:

Since you are subtracting a negative from a positive you would get 9

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Please explain how to do and set up
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A

using the Cosine rule in ΔSTU

let t = SU, s = TU and u = ST, then

t² = u² + s² - (2us cos T )

substitute the appropriate values into the formula

t² = 5² + 9² - (2 × 5 × 9 × cos68° )

   = 25 + 81 - 90cos68°

   = 106 - 33.71 = 72.29

⇒ t = \sqrt{72.29} ≈ 8.5 in → A


6 0
3 years ago
Find the value of X.
pychu [463]

Answer:

<h2><em>x</em><em>=</em><em>3</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>Theorem</em><em>:</em>

<em>The</em><em> </em><em>angle</em><em> </em><em>bisector</em><em> </em><em>theorem</em><em> </em><em>states </em><em>that</em><em> </em><em>if</em><em> </em><em>a</em><em> </em><em>ray </em><em>bisects</em><em> </em><em>an</em><em> </em><em>angle</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>triangle,</em><em>then</em><em> </em><em>it</em><em> </em><em>divides</em><em> </em><em>the</em><em> </em><em>oppos</em><em>ite</em><em> </em><em>side</em><em> </em><em>into</em><em> </em><em>two </em><em>segments</em><em> </em><em>that</em><em> </em><em>are</em><em> </em><em>proportional</em><em> </em><em>to</em><em> </em><em>other</em><em> </em><em>two</em><em> </em><em>sides</em><em>.</em>

<em>By</em><em> </em><em>the</em><em> </em><em>theorem</em><em>,</em>

<em>\frac{24}{9x - 9}  =  \frac{32}{6x + 6}  \\ or \: 24(6x + 6) = 32(9x - 9) \\ or \: 144x + 144 = 288x - 288 \\ or \: 144x - 288x =  - 288 - 144 \\ or \:  - 144x =  - 432 \\ or \: x =  \frac{ - 432}{ - 144}  \\ x = 3</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

3 0
4 years ago
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Lelu [443]

Answer:

20 sets

Step-by-step explanation:

320/16=20

He needs 320 ping pong balls, and he has 16, so divide the amount needed by the amount that comes in each containter.

3 0
3 years ago
The graph below shows the average daily temperatures on January 1 from 1900 to 1934 for city A.
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Answer:

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Step-by-step explanation:

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guapka [62]
3.95 × 3.81 = 15.0485

The road was 15.0485 miles long after the renovation.

Hope this helps!
4 0
3 years ago
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