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CaHeK987 [17]
3 years ago
8

Please help me with my homework

Mathematics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

x=90 y=58 z=32

Step-by-step explanation:

I don't know how to explain it but yea

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A circle with area 16pi has a sector with a central angle of 8/5pi radians. What is the area of the sector?
lianna [129]

Answer:

The area of the sector is 12.8\pi\ units^2

Step-by-step explanation:

we know that

The area of a complete circle (16π units^2) subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector , if the central angle is equal to 8π/5 radians

\frac{16\pi}{2\pi}=\frac{x}{(8\pi/5)}\\\\x=8(8\pi/5)\\\\x= 12.8\pi\ units^2

4 0
3 years ago
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Simplify the expression by combing all like terms x +2 + x + 2 + x
sergeinik [125]

Answer:

4 + 3x

Step-by-step explanation:

2 + 2 = 4

Add the three x's together and you get 3x!

Hope this helps! ^^

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3 years ago
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Pls help (I attached an image that explains the question)
masha68 [24]
I think it’s c or b but I’m positive it’s b
5 0
2 years ago
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2x+3y= 14<br>3х - 4 y = 4<br><br>​
goldenfox [79]

The solution to given system of equations are (x, y) = (4, 2)

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

2x + 3y = 14 ---------- eqn 1

3x - 4y = 4 --------- eqn 2

We have to solve the given system of equations

We can solve the above system of equations by elimination method

<em><u>Multiply eqn 1 by 3</u></em>

3(2x + 3y = 14)

6x + 9y = 42 --------- eqn 3

<em><u>Multiply eqn 2 by 2</u></em>

2(3x - 4y = 4)

6x - 8y = 8 ----------- eqn 4

<em><u>Subtract eqn 4 from eqn 3</u></em>

6x + 9y = 42

6x - 8y = 8

( - ) --------------

9y + 8y = 42 - 8

17y = 34

<h3>y = 2</h3>

<em><u>Substitute y = 2 in eqn 1</u></em>

2x + 3(2) = 14

2x + 6 = 14

2x = 14 - 6

2x = 8

<h3>x = 4</h3>

Thus the solution to given system of equations are (x, y) = (4, 2)

5 0
3 years ago
What is the area of this rectangle? *
Neporo4naja [7]

Answer:

36

Step-by-step explanation:9*4=36

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3 years ago
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