Hmm is your question correct I am a bit confused on the x2 2
First, we need to get all of the r's on the same side. To do this, we need to subtract "r" from both sides.
0.25r - 0.125 + 0.5r - r = 0.5 + r - r
0.25r - 0.125 +0.5r - r = 0.5
Now, we need to add like terms.
0.25r + 0.5r - r - 0.125 = 0.5
-0.25r - 0.125 = 0.5
Now, we need to get the "r" variable by itself.
-0.25r - 0.125 + 0.125 = 0.5 + 0.125
-0.25r = 0.625
Now, we divide both sides by -0.25
(-0.25r) / (-0.25) = 0.625 / (-0.25)
r = -2.5
Answer:
5.9 ft
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
872 = 4/3 (3.14) r^3
872 =4.186666666 r^3
Divide each side by 4.1866666 on each side
872 / 4.186666666 = r^3
208.2802548 = r^3
Take the cube root of each side
(208.2802548)^(1/3) = r^3^(1/3)
5.927652012 = r
Rounding to the nearest tenth
5.9 ft
Use CPCTC
Congruent Parts of a Congruent Triangle are Congruent
∠B ≅ ∠E
AB <span>≅ DE
BC </span><span>≅ EF
AB = 20
BC = 24
EF = 6
DE = x
20/24 = x/6
Solve for x, cross multiply
24(x) = 20(6)
24x = 120
24x/24 = 120/24
x = 120/24
x = 5
x = 5, or A is your answer
hope this helps</span>
