Answer:
-4 is the answer
Step-by-step explanation:
Answer:
73.4
Step-by-step explanation: Multiply you celsius by 9. Then take that number then by 9. then add by 32
10. Infinitely many solutions:
Simplify this equation:
When 
the equation becomes
This equality is true for all x, thus the equation has infinitely many solutions.
11. The equation 
should have one solution x=-1.
First, simplify the equation:
This equation will have solution x=-1 when
Therefore, the initial equation is
12. The equation 
should have infinitely many solutions.
Simplify it:
When 
this equation will have infinitely many solutions.
Answer:
1.5 or -5
Step-by-step explanation:
2x²+7x-15=0
Divide by 2:
x²+7x/2-15/2=0
x=-7/2/2 ± √49/4(4)+15/2
=-7/4 ± √49/16+120/16
=-7/4± √169/16=-7/4 ±13/4
=6/4 or -20/4
=1.5 or -5
There would be four rows of 5. If he added one more row of desks he would have 25 desks.
Each line is a desk
I I I I I
I I I I I
I I I I I
I I I I I
