3 years ago

3x=3(3x+1) x=(3x+1) -2x=1 x=- 1/2

1 answer:

6 0

You got the equation correct

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leva [86]

Three to the power of negative four is 81

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erastovalidia [21]

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Irina18 [472]

Should be
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3 years ago

zlopas [31]

Answer:

An obtuse triangle has two angles 45 and 18. The value of the unknown angle is $117^{\circ}$

Solution:

Given that two angles of an obtuse triangle is 45 and 18.

Third angle is θ

We are asked to find the value of third unknown angle theta

According to angle sum property of triangle, sum of three angles of triangle is $180^{\circ}$

This means in our case sum of 45, 18 and θ should be $180^{\circ}$

$\begin{array}{l}{=>45+18+\theta=180} \\ {=>\theta=180-63=117^{\circ}}\end{array}$

Hence value of unknown third angle of an obtuse triangle is $117^{\circ}$

7 0

3 years ago

Irina18 [472]

Since this is a 45-45-90 triangle, n = 6 and m = 6√3.

I hope this helps!

8 0

3 years ago