help please!

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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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3x+30=90 3x=90-30=60 x=?

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What's up?
please help
and fast please :)
3x+30=90 that looks good
Just solve for x
Because |dw:1433222505160:dw|
ok ?
Where are you confused?
They must add up to 90 degrees, as a right angle is always 90 degrees.
ok
and then
So we add the two angles 30+3x and make it equal to 90, 3x+30 = 90
Now solve for x to find the angle
i got 40
Can you please show you work? I know you expect me to do the work, but that will not benefit you, if you don't know how to do the algebra you are more than welcome to ask, don't worry about being wrong.
|dw:1433222874705:dw|
its 30! sorry
When we are doing algebra, we use the opposite property of what exists to move things. Say we're given something like \[5x=30\] notice the x is attached to the 5 that implies x is being multiplied by 5 as such \[5 \times x = 30\] So we say mhm, alright so what can we do to move the 5 away from x so we can get x alone, and also note what you do to one side you must always do it to the other. So we divide both sides by 5...oh I see you know how to do algebra but your arithmetic is wrong.
Try again :)
Your algebra is correct, but your division is wrong
20!
There we go! I knew you could do it :)
:)
Ned wrote the following statement: "You can only draw one unique isosceles triangle that contains an angle of 80°." Which statement is true? Ned is correct, because only one unique triangle can be drawn with the given information. Ned is incorrect, because the triangle described cannot be drawn with the given information. Ned is incorrect, because more than one triangle can be drawn with the given information.
its c.. prettY sure :) @iambatman
Sounds good
okk :)
Linda described four triangles as shown below: Triangle A: All sides have length 7 cm. Triangle B: All angles measure 60°. Triangle C: Two sides have length 8 cm, and the included angle measures 60°. Triangle D: Base has length 8 cm, and base angles measure 55°. Which triangle is not a unique triangle? Triangle A Triangle B Triangle C Triangle D
b?
Are you doing a test?
homework
A unique triangle is one that is not equilateral
So what you mentioned is a equilateral triangle as all angles are the same.
yes
And can only be drawn one way, so something like 3 cm, 5 cm, 7 cm
yea:)
so im right?
b?
Yes, that seems good
:)
Supplementary angles add up to 180, so \[5x+20+50=180\] solve for x
|dw:1433224140932:dw|
Yup
:)
sorry, b is not correct,it is d

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