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Alex17521 [72]
2 years ago
6

Explain please, I’ve been having trouble with this question

Mathematics
1 answer:
GuDViN [60]2 years ago
7 0

Step-by-step explanation:

I didn't need the other angles, but right of the bat you can tell it's two right triangles back to back.

<em>y </em> has to be 90° , as you have noticed they already gave you 70° on the right side of the shape meaning if you were to add 90 which is why plus 70 what would that give you? 160.

the total interior for a triangles angles has to be 180°. if you do the math 180 - 160 you get the leftover 20° for x.

I suck at explaining stuff, hope this helps

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Solve the following equation for x. 5/8x +4 = 3/8x + 12​
Rudik [331]

Answer:

X= 32

Step-by-step explanation:

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3 years ago
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Help me substitution method define variables
Rina8888 [55]
\left \{ {{S=14+L} (I) \atop {S+L=124}(II)} \right.

<span>Substitute (I) into (II), we have:
</span>S+L=124
(14+L)+L=124
14 + 2L = 124
2L = 124 - 14
2L = 110
L =  \frac{110}{2}
\boxed{L = 55}

<span>Replace (II) in (I), we have:
</span>S=14+L
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3 years ago
What’s 43 rounded to the nearest 10!???!
Lilit [14]

Answer:

40.

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<em>I hope this helped at all.</em>

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3 years ago
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PLEASE HELP I POSTED LIKE 2 HOURS AGO WITH THIS QUESTION AND I NEED HELP:)
garik1379 [7]

A system is inconsistent when there are no solutions between the two equations. Graphically, the lines will be parallel (they never meet!) and the slopes will be the same. But the y-intercepts will be different.

Let's look at the four equations, with each solved as needed, into y = mx + b form.

A: 2x + y = 5

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y = -2x + 5

Compared to y = 2x + 5, the slopes are different, so this system won't be inconsistent. Not a good choice.

B: y = 2x + 5

Compared to y = 2x + 5, the slopes are the same and the y intercepts are the same. This system has infinitely many solutions. Not a good choice.

C: 2x - 4y = 10

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Here the slopes are different, so, like A this is not a good choice.

D: 2y - 4x = -10

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2y = 4x - 10

y = 2x - 5

Compared to y = 2x + 5 we have the same slopes and different y intercepts.  The lines will be parallel and the system is inconsistent.


Thus, D is the best choice.

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3 years ago
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Answer:

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For ease, let's multiply these by 10,000.

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900 is clearly greater than 3. Therefore, 0.09 is greater than 0.0003.

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