Answer:
b-2=n
Step-by-step explanation:
Answer: 8 inches
Step-by-step explanation:
320π in³= π (r²) (5 in)
64 in² = r²
r = 8 in
Answer:
127°
Step-by-step explanation:
First, add everything together.
112 + 133 + 128 + 100 + 120 = 593
Then. subtract 720 - 593
720 - 593 = 127
So, the missing angle is 127°
Have a great day!
Answer:
3(x^2-x-3)
Step-by-step explanation:
9x^2-3x-9
3(3x^2-x-3)
Proof:
3(3x^2-x-3) by distributive method
9x^2-3x-9
Hope this helps ;) ❤❤❤
Average speed = (total distance traveled)/(total travel time)
= (total distance)/(time of 1st journey<span> + </span>time of 2nd journey<span> + </span>time of 3rd journey)
Let d = the distance between Town A and Town B
<span>So, total distance traveled = </span>3d
Time = distance/speed
time of 1st journey = d/x
time of 2nd journey = d/y
time of 3rd journey = d/z
<span>Total time = </span>d/x<span> + </span>d/y<span> + </span>dz
<span>To simplify, rewrite with common denominator: </span>dyz/xyz<span> + </span>dxz/xyz<span> + </span>dxy/xyz
So, total time = (dyz + dxz + dxy)/xyz
Average speed = (total distance)/(total time)
<span>= </span>3d/[(dyz + dxz + dxy)/xyz]
= (3dxyz)/(dyz + dxz + dxy)
<span>Divide top and bottom by d to get: (3xyz)/(yz + xz + xy)</span>
