Answer:
7x³ + 13x²+ 8x +9
Step-by-step explanation:
(3x² + 2x + 7x³) + (10x² + 6x + 9)
= 3x² + 2x + 7x³ + 10x² + 6x + 9
= 7x³ + (3x²+ 10x²)+ (2x+ 6x) +9
= 7x³ + 13x²+ 8x +9
4000000+400000+8000+700+30
Answer:
12 students
Step-by-step explanation:
1. 7s+16=100
We know the teacher has 100 markers, and she gave each student 7. If we say that s is the number of students, then 7s is the number of markers she gave out. We also know that she had 16 left over.
2. 7s+16-16=100-16
Subtract 16 from both sides of the equation.
3. 7s=84
Simplify the equation.
4. 7s/7=84/7
Divide both sides by 7.
5. Simplify the equation. Since s is the number of students, we now know how many students there are in the teacher's class.
The slope is 0 and it crosses the y- axis at 8