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GREYUIT [131]
3 years ago
7

Fiona is trying to prove that a pair of expressions are equivalent by using substitution. Which pair of expressions has the same

value if she substitutes y = 3?
Mathematics
2 answers:
katen-ka-za [31]3 years ago
7 0

Answer:

the answer is A i finished that test now im on another test and timed sorry for no explanation

Step-by-step explanation:

A

krek1111 [17]3 years ago
3 0

Answer:

A

Step-by-step explanation:

A because I did all on the question and A was the one

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The midpoint of (3 x, -2) and (-4, 5y) is (1,4). find x, -y​
Mariana [72]

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

\frac{3x - 4}{2}

This implies:

1 =  \frac{3x - 4}{2}

3x - 4 = 2 \\ 3x = 2 + 4 \\  \frac{3x }{3}  =  \frac{6}{3}  \\ x = 2

In a similar way,

4 =  \frac{ - 2 + 5y}{2}  \\  - 2 + 5y = 8 \\ 5y = 10 \\ y = 2

The question demanded (x,-y)

Hence(2,-2) is the answer

7 0
2 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 20 degrees.
TiliK225 [7]

Answer:

π/3 units

Step-by-step explanation:

arc length = 2πr(°/360)

                 = 2π*3(20/360)

                 = π/3 units

4 0
3 years ago
How would you solve this question by substitution<br><br> 13x−6y=22<br> x=y+6<br> ​
mario62 [17]

Answer:  x=-2 y=-8    or    (-2,-8)

Step-by-step explanation:

4 0
3 years ago
Which equation is true for the value x = 15?
boyakko [2]
The third one because 2(15+5)=2(20)=40
4 0
3 years ago
PLEASE ANSWERRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
Lesechka [4]

Answer:

So the 1st, 2nd, & 3rd graphs all show continuous data. (I'll attach an image to show which ones I'm talking about)

Explanation:

This is because with continuous data, all points need to connect and it needs to continue. The 4th graph (with just points) would be discrete.

I hope this helps!! :)

Sorry I took so long...


8 0
3 years ago
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