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nataly862011 [7]
3 years ago
9

7. Solve for x.V

t{?} " align="absmiddle" class="latex-formula">
x+ 3 = 20​
Mathematics
1 answer:
ch4aika [34]3 years ago
6 0
7+3=20

X+3=20
-3 -3
+3 & -3 cancel out
Then 20 minus 3 equals 7
So x=7
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I’m confused on this one
dedylja [7]

It's a parallelogram so if one angle is 90 degrees they all will be because of transverse angles and all that good stuff.


So we're given the diagonal of a rectangle and one side and we're asked to find the other. The diagonal of a rectangle is the hypotenuse of the right triangle whose legs are the sides of the rectangle. So this is a Pythagorean Theorem question in disguise:


AB^2 + AD^2 = BD^2


AD^2 = BD^2 - AB^2


AD = \sqrt{ BD^2 - AB^2 }


AD = \sqrt{149^2 - 51^2} = \sqrt{19400} = 140


Answer: 140 cm


I don't recall seeing this Pythagorean Triple before.





3 0
3 years ago
If a scale factor of One-fifth is used to make a reduction, what is the base of the original triangle?
AlexFokin [52]

Answer: the answer is d

Step-by-step explanation:

5 0
2 years ago
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Vlad1618 [11]
Here're the answers!!! Good luck!!
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Hoping this helped you out!! If my answer best helped you, please mark Brainliest! ;)

3 0
3 years ago
10,000 round to the nearest ten thousand
wlad13 [49]

Answer:

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5 0
2 years ago
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18) Solve the system. 0.4x - 0.1y = 2 0.2x + 0.5y = 1 A) (5, 0) B) (0, 5) C) (-5, 0) Eliminate D) (3, -10) please help me its ex
Artemon [7]
To solve the set of equations given above, we can use the substitution method where we substitute one equation to the other and solving for one variable. We do as follows:

<span>0.4x - 0.1y = 2
x = 5 + 0.25y

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y = 0
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Therefore, the correct answer from the choices is option A, (5,0).
6 0
3 years ago
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