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olga_2 [115]
3 years ago
12

X/2-7 is rational algebra expression or irrational?​

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
3 0

Answer:

I think it's rational number

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Triangles are similar Find the value of x.<br>Please i need help Thank you in advanced ​
lisov135 [29]

28 1/3

Step-by-step explanation:

The scale factor is 5/3

Multiply 17 by 5/3.

28 1/3

7 0
3 years ago
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Determine whether the pair of lines y - 1 = -4x and y = 4x + 1 are parallel, intersect, or coincide
marin [14]
A good place to start is getting your first equation into the standard y=mx+b form.
It would be y=-4x+1 and y=4x-1
Then we can set them equal to each other, solve for x, and see what happens.
-4x+1=4x-1
1=8x-1
2=8x
X=1/4
Now to solve for the y value you plug .25 in for x in either equation. You’ll get zero. Therefore your lines will intersect at (.25,0)
Hope this helped!
4 0
3 years ago
A hot air balloon is at elevation of 650 feet. After it descends 120 feet, what is the elevation of the balloon?
SVETLANKA909090 [29]

Answer:

530

Step-by-step explanation:

4 0
3 years ago
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Y+4=2(x+3) In slope-intercept form
Sati [7]
Y=2x+2 this is the answer hope this helps

3 0
3 years ago
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The 8th term of a GP is -7/32 find its common ratio if its first term is 28
Ugo [173]
<h2>Common ratio = -1/2</h2>

Step-by-step explanation:

       \text{8}^{th} term of a Geometric progression is given as \dfrac{-7}{32}. The first term is given as 28.

       Any general Geometric progression can be represented using the series a,ar,ar^{2},ar^{3},ar^{4}...\text{ }ar^{n-1}.

The first term in such a GP is given by a, common ratio by r, and the n^{th} term is given by ar^{n-1}.

       In the given GP, a=28;t_{8}=ar^{7}=\dfrac{-7}{32}\\\\28r^{7}=\dfrac{-7}{32}\\\\r^{7}=\dfrac{-1}{128}\\\\r=\dfrac{-1}{2}

∴ Common ratio is \dfrac{-1}{2}.

5 0
3 years ago
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