-8x=2+4 x=-4+43, I think -8x moved to left and solve that, its simple.
Answer:
The radius of the new cheese ball formed is approximately 6.603 inches.
Step-by-step explanation:
We are given the following in the question:
Radius of three cheese ball = 2 inches, 4 inches, and 6 inches
They were combined to form a new cheese ball.
Thus, we can write
Volume of three cheese balls = Volume of new cheese ball.
Let r be the radius of new cheese ball.
Volume of sphere =

Putting values, we get:

Thus, the radius of the new cheese ball formed is approximately 6.603 inches.
<span>2x + 4y = 36
3x - 4y = -6
--------------add
5x = 30
x = 6
</span>2x+4y=36
2(6)+4y=36
12 + 4y = 36
4y = 24
y = 6
answer
<span>(6, 6) is a solution of equations
</span><span>(4,7) is NOT a solution of equations</span>
Answer:
We use cosine rule also called cosine law which states
c^2=a^2+b^2-2abcosC
given
a=8cm, b=7cm, c=9cm cos C?
9^2=8^+7^2-2*8*7 cos C
expand
81=64+49-112 cos C
like terms together
81-113=-112 cos C
-32=-112cos C
multiply both sides by -1
32=112cos C
divide both sides by 112
32/112=cos C
cosC=0.2857
find cos inverse of 0.2857
angle C= 73.40