Answer:
51
Step-by-step explanation:
area = pi x r^2
so
3.14 x 25
around 76
so
2/3 of 76
is
51
Answer:
Approximately 6.5 miles
Step-by-step explanation:
If the marathon runners ran 26 miles in 4 hours, you would have to divide 26 by 4 since it's asking how many miles per 1 hour they ran.
Multiply the second question by -1 to cancel out the y’s. then add them. 11x=-11
x=-1
substitute that back into one of the equations
-3(-1)+y=-5
3+y=-5
y=-8
Answer:
y = -3x + 2
Step-by-step explanation:
y = mx + b
m = rise/run = -6/2 = -3
(negative graph = negative slope)
b = y-intercept = 2
Here we go ~
[ add 2 on both sides ]
[ form identity : a² + b² + 2ab ]
[ a² + b² + 2ab = (a + b)² ]
so, the value of required expression is 6
[usually positive value is considered, but if asked the value can be either positive or negative]
