It would be 9 ft. using the knowledge of
times the diameter (
equals aprox. 3.14) equal the circumference of a circle, and since we know the circumference, we need to divide that by
to get the diameter.
equation: 28/3.14=8.913
rounding that would bring it to 9 ft.
Y=mx+b
m=slope
perpendicular lines have slopes that multiply to get -1
the slopes are
for
and
, the slope are
since their product is -1, the lines are perpendicular
I believe this is the way to solve it.
22 - 2 = 20
20 is 90.9% of 22
So the probability of choosing a student with a sibling at random should be 90.9% (or you can round up to 91%)
I hope this helps :)
x+y=120_______1
x=4*y_________2
x=4y
substitute 4y for x in equation 1
`4y+y=120
5y=120
eliminate the coefficient of y
y=120/5
y=24
now,input 24 for y in equation 2
`x=4y
x=4*24
x=96
thus, the numbers are
96 and 24
Answer:
x | y
10 1 = 1/2 (10) -4=5-5= 1
-2 -5 = 1/2(-2)-4=-1-4= -5
4 -2 = 1/2(4)-4=2-4= -2
-8 -8 = 1/2(-8)-4=-4-4= -8
