I don't understand how to do this
1 answer:
Hi!
The table above is showing how to plug in a variable to x. For an example,
when x= 4 would equal 17. How we would get this is substitute x with 4 and use our order of operations.
To get 68, we would do this in reverse. We would add 3 to both sides to eliminate the -3 to have a remainder of
Divide both sides by five to solve for x.
We can also check our math and plug in 17/5 into x
The table above is showing how to plug in a variable to x. For an example,
when x= 4 would equal 17. How we would get this is substitute x with 4 and use our order of operations.
To get 68, we would do this in reverse. We would add 3 to both sides to eliminate the -3 to have a remainder of
Divide both sides by five to solve for x.
We can also check our math and plug in 17/5 into x
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a) Parallel for both line segments have the same slope = -5/4
b) 55º
Step-by-step explanation:
a) To verify the parallelism of these line segments, It's necessary to find the slope of each one. Parallel lines share the same slope value:
b) If ∠DAB = 125°, what is the measure of ∠CBA? Justify your reasoning.
Those beams do not form a parallelogram because:
Using the formula of distance between those points
So this is a trapezoid. And two adjacent angles within a trapezoid are supplementary, so If ∠DAB = 125º then 180 - ∠CBA=55º
