Answer:
B
Step-by-step explanation:
V = (4 * pi /3) * (38 + 0.16t)^3
t = 208 seconds.
V = (12.56/3) * (38 + 0.16 * 280)^3
V = 4.186 * ( 38 + 44.8)^3
V = 4.286 * (82.8)^3
V = 4.286 * 567663
V = 2433005 which is close enough. The precise answer will be obtained by using a better value for pi. Anyway that's the only answer that gives about 2.5 million so B is correct.
Answer:
27
Step-by-step explanation:
3^2(2^3+4)/2^2
3^2(8+4)/2^2
3^2(12)/2^2
9(12)/4
108/4
27
Answer:
u =0
Step-by-step explanation:
55 -11u = 55
Subtract 55 from each side
55-55 -11u = 55-55
-11u = 0
Divide each side by -11
-11u/-11 = 0/-11
u =0
Answer:
28 units squared
Step-by-step explanation:
It becomes a lot easier if you just try to plot the points on an axis, but i'll try to explain.
A and B are x-intercepts and the bottom two corners of the rectangle. C and D are the top two corners of the rectangle. Like any other case, to find the area, you need just two things:
1) height
2) width
To find the width:
Consider the distance between A and B - the bottom 2 corners. The coordinates are (2,0) and (6,0). Since we are trying to work out the width, just worry about the x-values. So, 6-2 = 4 and that is the width.
To find the height:
We'll take coordinates B and C - the bottom and top right corners of the rectangle. Coordinates are (6,0) and (6,7). Since we are trying to work out the height, just look at the y-values. So, 7 (top corner) - 0 (bottom corner) = 7, which is the height.
To figure out area:
Just multiply width by height, so:
4 x 7 = 28
And the area is 28 units squared. Change the units into whatever unit of measurement they give you (m, cm, mm etc.)
Hope this helped :)
The second one is the correct answer