The value of 3ab+5b-5 is 18
Answer:
Option C. 
Step-by-step explanation:
we know that
If a system of two linear equations has an infinite number of solutions, then both equations must be identical
The given equation is
<u><em>Verify each case</em></u>
Option A. we have
apply distributive property
Compare with the given equation
Option B. we have
remove the parenthesis
Compare with the given equation
Option C. we have
apply distributive property
Compare with the given equation
therefore
This equation with the given equation form a system that has an infinite number of solutions
Option D. we have
Compare with the given equation
Answer:
Supplementary to x is a 90° angle (right angle) which means that both x and the right angle will have to equal 180 degrees:
90 + x = 180
-90 -90
x = 90°
Let's find the angle measure that is supplementary to y.
A 5 sided shape is equal to 540 degrees (you could find this by using the formula: (n - 2) x 180 where n is the number of sides)
so given interior angles:
90 + 80 + 98(supplementary to angle 82 degrees) + 136 + 136(two equal angle measures in the polygon that are missing)
= 540(which is correct), so now we know the two missing angles, 136, besides the angle supplementary to 82 degrees.
136 is supplementary to y so:
136 + y = 180
-136 -136
y = 44°
Bro i don’t have calculator on me rit now but i will tell you how to do it pretty much you have to get 21 cookies or somethhing times that by 21
