Answer:
20√2=28.2842....
Step-by-step explanation:
special right traingles
a 45-45-90 states that the legs are congruent and the hypotenuse is leg√2
Answer:
After 120 seconds
Step-by-step explanation:
Here, we want to know the number of seconds after which both spotlights will change colors at the same time again.
Basically, what we want to do here is to
calculate the value with which 30 and 40 have the same multiples or we want to
calculate the lowest common multiple of 30 and 40
The multiples of 30 are 30,60,90,120 etc
The multiples of 40 are 40,80,120 etc
We can see that the lowest common multiple of both is 120
So therefore the spotlights will change colors at the same time after 120 seconds
Answer:
B
Step-by-step explanation:
Reminder: slope-intercept form is y=mx+b where m is the slope and b is the y intercept
There are two points given on the line: (-1, 2) and (1, -4)
First, find the slope
Reminder: slope is y2-y1/x2-x1
Substituting the numbers into the equation gives -4-(-2)/1-(-1) which would make m=-3
Now that the slope is found, we can use slope point form
Reminder: slope point form is y-y1=m(x-x1)
Substituting the numbers would give this equation:
y-2=-3(x-(-1))
Simplifying the equation would give y=-3x-1.
