Answer:

Step-by-step explanation:
The angles in a triangle add to 180 degrees.
We are given triangle EFG. There are 3 angles: m∡E = 5x+6, m∡F = 4x-6, and m∡G = 5x-2.
The sum of these three angles must equal 180. Set up an equation and solve for x.

Combine like terms on the left side.


Solve for x. 2 is being subtracted from 14x. The inverse operation of subtraction is addition. Add 2 to both sides.

x is being multiplied by 14. The inverse operation of multiplication is division. Divide both sides by 14.



Find the measure of angle G. Substitute x into the original expression.


The measure of angle G is 63 degrees.
The length<span> of a </span>social media interaction<span> is </span>normally distributed<span> with a </span>mean<span> of </span>3 minutes<span> ... The </span>length<span>of a </span>social media interaction<span> is </span>normally distributed<span> with a </span>mean<span> of </span>3 minutes<span> and a </span>standard deviationof .4 minutes<span>. </span>
The angle above 111 degrees must be 69 degrees because of supplementary angles (111+69=180)
And since the triangles are congruent, angle 2 must be 69 degrees as well.
Hope this helped.
Answer:
Step-by-step explanation:
20: is a drawing with compasses and rular
18e³f+45e²f^4 ( take 9 as a common factor, e² and f)
9e²f(2e+5f^3)
x²-4x-12 ( factorize)
(x-6)(x+2)=0
either : x-6=0
then x=6
or x+2=0
then x=2