Answer:
david was. 9 seconds faster than Justin.
Step-by-step explanation:
8.1-7.2= .9
Hello!
Here we can use the quad formula to solve for the x values or roots.

= -2 and 3/2
The negative root for this equation is x=-2
We find the roots of an equation by solving for x by different ways, most common ones being the quadratic formula of x= [-b +/-sqrt(b^2-4ac)]/2a or factoring and setting equal to zero and solving for x value(s) that way. Also the roots are where the graph of the equation crosses the x-axis.
Hope this helps. Any questions please just ask. Thank you kindly
Answer:
44x/7
Step-by-step explanation:
Radius=r=xcm
Circumference=2πr
➜2πx
➜2×22/7×x
➜44/7×x
➜44x/7
Answer:
200+3000+300=3500
Step-by-step explanation:
yan po sagot