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irina1246 [14]
2 years ago
10

X - 2y = 2 3x + 2y = -2

Mathematics
2 answers:
WARRIOR [948]2 years ago
8 0

Answer:

x=0

y= -1

Step-by-step explanation:

x−2y=2                 - eq 1

3x+2y=−2             - eq 2

x−2y=2

(3x+2y)+(x−2y)=−2+2

x−2y=2

3x+2y+x−2y=0

x=0

y= -1

IceJOKER [234]2 years ago
3 0

Answer:

x=0 y=-1

Step-by-step explanation:

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360 percent. 360 percent probability i think

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2 years ago
20.) A=49.23 degrees, c=54.8Solve the right triangle. Express angles in decimal degrees.
vivado [14]

\begin{gathered} a=41.50 \\ b=35.78 \\ B=40.76\text{ \degree} \\  \end{gathered}

Explanation

Step 1

a) let

\begin{gathered} A=49.23\text{ \degree} \\ c=54.8\text{ \degree} \end{gathered}

b) b value

to find the measure of side b we can use cosine function

\begin{gathered} cos\theta=\frac{adjacent\text{ side}}{hypotenuse} \\ replace \\ cos\text{ 49.23=}\frac{b}{54.8} \\ b=54.8*cos49.23 \\ b=35.78 \end{gathered}

c) angle B

to find the measure of Angle B we can use sine function

\begin{gathered} sin\theta=\frac{opposite\text{  side}}{hypotenuse} \\ replace \\ sin\text{ B=}\frac{35.78}{54.8} \\ sin\text{ B= 0.65}\Rightarrow inverse\text{ function to isolate B} \\ B=\sin^{-1}(0.65) \\ B=40.76 \end{gathered}

d) side a

\begin{gathered} sin\theta=\frac{opposite\text{ side}}{hypotenuse} \\ sin\text{ A=}\frac{a}{c}=\frac{\placeholder{⬚}}{\placeholder{⬚}} \\ sin\text{ 49.23=}\frac{a}{54.8} \\ multiply\text{ both sides by 54.8} \\ 54.8s\imaginaryI n\text{49.23=}\frac{a}{54.8}*54.8 \\ 41.50=a \end{gathered}

so, the answer is

\begin{gathered} a=41.50 \\ b=35.78 \\ B=40.76\text{ \degree} \\  \end{gathered}

I hope this helps you

7 0
1 year ago
Which of the following represents the series shown? Check all that apply. 11+17+23+29
Daniel [21]

Answer:

80

Step-by-step explanation:

have a wonderful day :)

6 0
2 years ago
Read 2 more answers
I need help plz! I am so confuse, I would really appreciate it if someone knows the answers!
aalyn [17]

What's the question?

Step-by-step explanation:

I will answer it

3 0
2 years ago
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