Answer:
Step-by-step explanation:
Substitute 1/2 wherever you see x
= -1/3 +5
= -1+15/3
=14/3
Answer:
x+2
Step-by-step explanation:
6x2 + 30x+ 36
Factor out the greatest common factor
6 (x^2 +5x+6)
Factor inside the parentheses
That 2 numbers multiply to 6 and add to 5
2*3 = 6
2+3 = 5
6(x+3)(x+2)
Answer:
See below
Step-by-step explanation:
L = length
W = 2 feet less than L = L-2
Area = L x W
20 = L * (L-2)
20 = L^2 - 2L
0 = L^2 - 2L - 20
Use Quadratic Formula a = 1 b = -2 c = -20
L = [-b ± sqrt(b^2-4ac) ]/2a
to calculate <u> L = 5.5826 ft then W = L-2 = 3.5826 ft </u>
Answer:
6.75cm
Step-by-step explanation:
The straw fits diagonally inside the can so it makes a right angled triangle with height and base of the can ( which is the diameter of the can)
So, hypotenuse = length of straw = 22.5cm
perpendicular = 18cm
base = diameter of can(d)
Using pythagoras theorem
h² = p² + b²
(22.5)² = 18² + d²
506.25 = 324 + d²
d² = 506.25 - 324
d² = 182.25
d = 13.5cm
Now radius = d/2 = 13.5/2 = 6.75cm
Answer:
25
Step-by-step explanation:
3x+2x+55=180
5x+55=180
5x=180-55
5x=125
X=125/5
X=25
So the value of X is 25
