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loris [4]
3 years ago
8

What are the factors of expression (y-3)(x+7)

Mathematics
1 answer:
torisob [31]3 years ago
4 0
That is easy!! :)
y=3 and x=-7

When you find the factors of something like this, you have to just get the letter alone.

For example: y-3. You have to first write it as y-3=0, then you add 3 from BOTH sides of the = so that you can make the -3 go away and y will be alone. So, it will look like this: y-3+3=0+3. Then, you solve it for y (which just means that you want y by itself on one side of the = ). So, -3+3=0, which means they disappear from that side; since 0+3=3, that's what that side turns into, so what you end up with is y=3

Same thing goes for the x+7 equation:
x+7=0
x+7-7=0-7
x=-7
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What is x+y=10;y=x+10
Alenkasestr [34]

[ Answer ]

\boxed{\bold{X \ = \ 0, \ Y \ = \ 10}}

[ Explanation ]

  • System Of Equations \bold{\left \{ {X \ + \ Y \ = \ 10} \atop {Y \ + \ X \ = \ 10}} \right.}

-----------------------------------

  • [Substitute] Y = X + 10

\bold{\begin{bmatrix}x+x+10=10\end{bmatrix}}

  • Isolate x for x + x + 10 = 10: x = 0

For y = 10

Substitute x = 0

Y = 0 + 10

0 + 10 = 10

y = 10

  • Solutions

X = 0

Y = 10

\boxed{\bold{[] \ Eclipsed \ []}}

3 0
3 years ago
35-4-2-13<br> O C5 (<br> 42) 13<br> o<br> D(<br> 64) -2-13
Radda [10]
Hmmm it’s D I think?
7 0
2 years ago
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Kate's swim coach informs her that she only has 35% of her workout left. Kate has swum 26 laps so far.
Sergio039 [100]
Well so far, Kate has saw 65% of her workout

65% of total = 26
0.65 * t = 26
t = 26/0.65
t = 40 laps
3 0
3 years ago
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Find the intercepts of 2x-y=-4
-Dominant- [34]

Answer:

Y intercept: y=2x+4

And x intercept: x=1/2y-2

Step-by-step explanation:

7 0
3 years ago
Question content area top
Natali5045456 [20]

The circumference of the outer circle is greater than that of the inner circle by 18.86 feet.

<h3>What is Circle?</h3>

A circle is a round 2-dimensional shape. It is a closed shape with a distance from center to circumference termed as radius 'r' and distance from one point on the circumference to another point passing through center termed as diameter 'd'.

The circumference of the inner circle is 88 ft.

Circumference of a Circle  = 2πr

    2πr = 88

   2 X 22/7 X r = 88

     r = 88 X 7 / 44

    r = 14 ft.

Radius of the inner circle = 14 feet

If the distance between the inner circle and the outer circle is 3 ft, the radius of the outer circle = 14+3 = 17 feet.

circumference of the outer Circle = 2πr

                                                         = 2 X 22/7 X 17

                                                         = 106.86 ft.

Difference in Circumference = 106.86 - 88 = 18.86 feet

Thus, the circumference of the outer circle is greater than that of the inner circle by 18.86 feet.

Learn more about Circle from:

brainly.com/question/11833983

#SPJ1

4 0
2 years ago
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