Ugh ,, im stuck again :( someone please explain this !!!
1 answer:
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Answer:
D
Step-by-step explanation:
The equations are
● 4x + 2y = 10 (1)
● 4x - 2y = -10 (2)
● 4x + 2y = 10
Add - 4x to both sides
● 4x + 2y -4x = 10 -4x
● 2y = 10 -4x
Divide both sides by 2
● 2y/2 = (10 - 4x)/2
● y = 5 - 2x
● y = -2x + 5 (1)
● 4x - 2y = -10
Add -4x to both sides
● 4x -2y -4x = -10 - 4x
● -2y = -10 - 4x
Divide both sides by -2
● -2y/-2 = (-10 -4x)/-2
● y = 10 + 2x
● y = 2x + 5 (2)
So the equation are
● y = 2x + 5
● y = -2x + 5
Graph them
The lines intersect at (0,5) but aren't perpendicular
So the answer is d
Alright, lets get started.
Please take a look at the diagram attached.
The reference angle of 75 will be 75
As it is mentioned that the angle intersects the unit circle means r = 1
So, finding cos
cos 75 =
cos 75 =
cos 75 = 0.259 : Answer
Hope it will help :)
1. 14 loaves are needed for 63 customers
2. 90 loaves
3. 4.5 loaf
Step by Step:
9/2= 4.5
4.5x4= 18
27/4.5=6
14x4.5=63
I multiplied and divided everything by 4.5 so one loaf of bread is 4.5.
(Correct me if I'm wrong)
I hope this helped! :)
