5x - 4y = 40
x intercept is when y = 0
5x - 4*0 = 40
5x = 40
x = 40/5
x = 8 x intercept = 8
y intercept is when x = 0
5*0 - 4y = 40
-4y = 40
y = 40/-4
y = -10
y intercept = -10
x intercept = 8, <span>y intercept = -10</span>
If you can't figure out how to do it, you can always use your answer choices, so for example, use choice a (21 degrees). Plug in 21 for x for both equations. So for the first equation that would be 7(21)-1= 146 and second equation 3(2)-9= 54. Then you would add the results, 146+54=200. In that case, choice 21 is wrong because both of these angles should equal to 180 since it is a supplementary angle. I hope that helped.
Since a triangles angles add up to 180 you would add the other sides and then
180-161=19
So angle 1 is 19 degrees
<span>3 + 3 x 3 - 3 + 3
Multiply 3 by 3
3 + 9 - 3 + 3
Add 3 to 9
12 - 3 + 3
Subtract 3 from 12
9 + 3
Add
Final Answer: B. 12</span>
Answer:
A. = 8
2. = 12
3. = 10
4. = 14
5. = 9
Step-by-step explanation:
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