Answer:
k = 4
Step-by-step explanation:
Plug in the values of 2 for x and 0 for y, and solve for k.
2x + 3y = k
2(2) + 3(0) = k
4 = k
k = 4
We are given
length of sides are
AB=7
AC=7
BC=6
now, we can use formula of area of triangle
where
A is area of triangle
r is radius of in-circle
s is semi-perimeter of triangle
step-1: Finding area of triangle
We can use
Heron's formula
a , b and c are values of sides
now, we can plug values
step-2: Finding radius(r)
we got
now, we can find radius
............Answer
Answer:
Step-by-step explanation:
Take LCM of 7 and 8 to make the denominators same.
LCM = 56
and then solve :
Answer:
3x^3 + 3x^2 − 30x − 48
Step-by-step explanation:
3( x + 2 )( x^2 − x − 8 )
= ( 3( x + 2 ))( x^2 + − x + − 8 )
= ( 3( x + 2 ))( x^2 ) + ( 3( x + 2 ))( −x ) + ( 3( x + 2 ))( −8 )
= 3x^3 + 6x^2 − 3x^2 − 6x − 24x − 48
3x^3 + 3x^2 − 30x − 48