Answer: $6
Step-by-step explanation:
Answer:
The value of T is 55°
Step-by-step explanation:
Using the theorem of parallel and equality,the angle of unknown angle equals to opposite one.
Or at least if you noticed,that angle is perpendicular,then 35+90=125;
180-125=55°
Answer:
(5,7)
Step-by-step explanation:
8x + 7y = 89
2x + 5y = 45
Multiply the second equation by 4
4(2x + 5y) = 45*4
8x +20y = 180
Subtract the first equation
8x +20y = 180
-8x -7y = -89
--------------------------
13y = 91
Divide each side by 13
13y/13 = 91/13
y =7
Now solve for x
2x+5y =45
2(x) +5(7) = 45
2x +35 = 45
Subtract 35 from each side
2x+35-35 = 45-35
2x =10
Divide each side by 2
2x/2 = 10/2
x=5
Answer:
C
Step-by-step explanation:
total number of wheels=4*21=84
Answer:
Step-by-step explanation:
The volume of a cylinder is defined as
So, by given we know that the diameter of the circular base is 
times its height which is 
, if we transform each mixed number into a fraction, it would ne
Diameter: 
times the height.
Height: 
That means,
, replacing the height, we have
But, the radius is half the diameter by definition
Now that we know the radius and the height, we can use the formula to find the volume
Therefore, the volume rounded to the nearest hundred is
