Answer:
x=19
Step-by-step explanation:
We know that the interior angles of a triangle add up to 180 degrees. We already have one angle, the bottom one, so let's just get that out of the picture by subtracting it from 180. The other two angles add up to be 80 degrees. What we can do is combine them together and get 4x-4=80. We have 4x because of x+3x. It equals 80 because that's what the two angles together add up to be. What we want to do now is get x by itself. Subtract 4 from both sides and get 4x=76. Now, we divide by 4, to undo multiplication. We are left with x=19, and now we have our answer.
Answer:
A
Step-by-step explanation:
note that (f - g)(x) = f(x) - g(x)
f(x) - g(x)
= 3x - 2 - (2x + 1) ← distribute by - 1
= 3x - 2 - 2x - 1 ← collect like terms
= x - 3 → A
12 inches is the answer im sure
Answer:
1A) Degree: 3
1B) 4 terms
1C) 
2A) 
2B) 
Step-by-step explanation:
The given polynomial is 
Let us rewrite the polynomial in decreasing powers of x.
This gives us the expression;
-----> This is called the standard form.
So let us answer the question:
A) The degree is the exponent of the first term when the polynomial is written in standard form.
Degree: 3
B) The terms are separated by + or - signs.
Number of terms: 4
C) Standard form: 
2A) The given expression is 
We expand using the distributive property to get:

We regroup the terms to get:

We simplify to obtain:

2B) The given expression is 

Regroup the terms to get:

We simplify to get:

Answer:
12.66666 infinity or 38/3
Step-by-step explanation:
Parentheses first so 5-2 is 3... then multiply so then 12... 12+32-6 is 38. 38 over 3 is 12.6666 infinity or 38/3, cannot be simplified...