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kolbaska11 [484]
3 years ago
13

I don't understand this plz help explain how to do it

Mathematics
1 answer:
podryga [215]3 years ago
6 0

Answer:

1. U. 190

2.U. 155

3. U. 240

Step-by-step explanation:

Explanation: To find an angle of a triangle we add the angles we know about

EXAMPLE: 50 + 120. We need to find the third angle.

We know that Angles of triangles should add up to 360

So to find the third angle we add the angle we know about.

EXAMPLE: 50 + 120 = 170 then we Subtract the sum of a triangle *360*

EXAMPLE: 50 + 120 = 170

EXAMPLE: 170 - 360

EXAMPLE: = 190

That's how we find a third angle!

If this doesn't clarify how do to it enough just let me know and i can try to explain more in detail!

Hope this helps you!!!

Have a nice day!

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For f(x) = x2 + 2x + 3, and g(x) = x2 + 5, Find F(g(2)).
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Answer:

f(g(2)) = 102

Step-by-step explanation:

f(x) and f(g(2))

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5 0
3 years ago
If 10^2y = 25, then 10^-y equals:<br>(a) -1/5<br>(b) 1/625<br>(c) 1/50<br>(d) 1/25<br>(e) 1/5​
Gemiola [76]
<h3><u>given</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<h3><u>to</u><u> </u><u>find</u><u>:</u></h3>

<u>{10}^{y}  = .......</u>

<h3><u>solution</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<u>(10y {)}^{2}  =  {5}^{2}</u>

<u>10y = 5</u>

<u>\frac{1}{ {10}^{y} }  =  \frac{1}{5}</u>

<u>{10}^{ - y}  =  \frac{1}{5}</u>

<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>correct</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>option</u><u> </u><u>E</u><u>.</u>

8 0
1 year ago
Read 2 more answers
-104=8x what is x ????
love history [14]
-104=8x \\ \\ - \frac{104}{8} = x \ / \ divide \ each \ side \ by \ 8 \\ \\ -13 = x \ / \ simplify \\ \\ x = -13 \ / \ switch \ solution \ around \\ \\

The final result is, x = -13.
8 0
3 years ago
Read 2 more answers
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