Answer: x=4,y=-5
Step-by-step explanation:
Equation: 5x-4y=20
To find the x intercept make y=0 so ur left with
1)5x-4(0)=20
Then you can solve x from here
2) 5x=20
Because -4 * 0 = 0
3) x= 20/5
Because we want x by itself so we divide 5 on both side so the 5 cancels out on the left side
4) x=4
Because 20/5=4
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You do the same thing for y make x equal to zero and that’s how you find it
Answer:
She added the exponents instead of subtracting them.
Step-by-step explanation:
She was to simplify:

Dividing the numerator with 3 and the denominator with three gives:

Then, x³ ÷
would be
= 
(Where there is division; we are supposed to subtract the exponents.)
So the final answer would be: 
A. multiplied by 2
explanation: it is multiplied by 2 because you add the radius 2 times
Answer:
40 degrees
Step-by-step explanation:
All the angels of a triangle are equivalent to 180 degrees.
180 - (61 + 79) = 40 degrees