Answer:
400 m/s
Step-by-step explanation:
u=0 m/s
t=20 s
a=20 m/s²
v=u+at
=0+20×20
=400 m/s
Answer:
4xy + 6x
Step-by-step explanation:
2xy + 2x + 4x + 2xy
combine like terms:
4xy + 6x
Answer:
- a=1
- b=1
- c=-4
- x = (-1 ±√17)/2
Step-by-step explanation:
The coefficient of x^2 is "a". That is 1.
The coefficient of x is "b". That is 1.
The constant term is "c". That is -4.
The values of a, b, and c are 1, 1, and -4, respectively.
_____
The solution is ...
x = (-b ±√(b^2-4ac))/(2a)
Filling in the values of a, b, and c, this is ...
x = (-1 ±√(1^2 -4·1·(-4)))/(2·1)
x = (-1 ±√17)/2
Answer:

Step-by-step explanation:
we are given a line
we want to figure out the equation of theline remember the slope-intercept form of linear equation:

where:
- m is the slope of the equation
- b is y-intercept
from the graph we can clearly see that the line passes y-intercept at <u>(</u><u>0</u><u>,</u><u>-</u><u>3</u><u>)</u> point therefore b is <em>-</em><em>3</em>
to figure out m we can consider the following formula:

from the graph we obtain:(0,-3),(2,-4)

simplify substraction:

now altogether substitute:

and we are done!