Answer:
y=50
x=30
z=100
Step-by-step explanation:
x+20=y
2y=z
x+y+z=180
x+y+2y=180
3y+x=180
-y+x=-20
4y=200
y=50
x=30
z=100
Answer:
131.87-23.24=108.63
Step-by-step explanation:
To solve this problem, let's line up the problem. To make it easier, we can start by ignoring the decimals.
13187
- 2324
______
10863
And then, since there were decimals in the first place, we have to add them back in.
10863→108.63
Answer:
8
Step-by-step explanation:
The answer is here written
Answer:
The student assumed he was asked to factor
(a^2 - b^2)
Which is equal to
= (a+b)*(a-b) (His response)
But, he was asked to simplify
(a^2 + b^2)
Which has imaginary roots, and can be factored as:
(b +ai)(b-ai)
