anonymous
  • anonymous
help please!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@surjithayer
anonymous
  • anonymous
anonymous
  • anonymous
3x+30=90 3x=90-30=60 x=?

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More answers

anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
@KyanTheDoodle
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
What's up?
anonymous
  • anonymous
please help
anonymous
  • anonymous
and fast please :)
anonymous
  • anonymous
3x+30=90 that looks good
anonymous
  • anonymous
Just solve for x
anonymous
  • anonymous
Because |dw:1433222505160:dw|
anonymous
  • anonymous
ok ?
anonymous
  • anonymous
Where are you confused?
anonymous
  • anonymous
They must add up to 90 degrees, as a right angle is always 90 degrees.
anonymous
  • anonymous
ok
anonymous
  • anonymous
and then
anonymous
  • anonymous
So we add the two angles 30+3x and make it equal to 90, 3x+30 = 90
anonymous
  • anonymous
Now solve for x to find the angle
anonymous
  • anonymous
i got 40
anonymous
  • anonymous
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.
anonymous
  • anonymous
|dw:1433222874705:dw|
anonymous
  • anonymous
its 30! sorry
anonymous
  • anonymous
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.
anonymous
  • anonymous
Try again :)
anonymous
  • anonymous
Your algebra is correct, but your division is wrong
anonymous
  • anonymous
20!
anonymous
  • anonymous
There we go! I knew you could do it :)
anonymous
  • anonymous
:)
anonymous
  • anonymous
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.
anonymous
  • anonymous
its c.. prettY sure :) @iambatman
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
Sounds good
anonymous
  • anonymous
okk :)
anonymous
  • anonymous
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
anonymous
  • anonymous
b?
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
Are you doing a test?
anonymous
  • anonymous
homework
anonymous
  • anonymous
A unique triangle is one that is not equilateral
anonymous
  • anonymous
So what you mentioned is a equilateral triangle as all angles are the same.
anonymous
  • anonymous
yes
anonymous
  • anonymous
And can only be drawn one way, so something like 3 cm, 5 cm, 7 cm
anonymous
  • anonymous
yea:)
anonymous
  • anonymous
so im right?
anonymous
  • anonymous
b?
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
Yes, that seems good
anonymous
  • anonymous
:)
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
Supplementary angles add up to 180, so \[5x+20+50=180\] solve for x
anonymous
  • anonymous
|dw:1433224140932:dw|
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
@iambatman
anonymous
  • anonymous
Yup
anonymous
  • anonymous
:)
anonymous
  • anonymous
sorry, b is not correct,it is d

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