Find what that area is
22*66=1452
5 times of that is
1452*5=7260
s=seconds
(22+33s)(66+33s)=7260
1089s^2+2904s+1452=7260
minus 7260 from both sides
1089s^2+2904s-5808=0
factor or use quadratic formula
(363)(x+4)(3x-4)=0
set each to zero
x+4=0
x=-4, false, it is increasing, not decreasing
3x-4=0
3x=4
x=4/3
answer is 4/3 seconds
Sure! I will help just leave the question below
<u>Answer : </u>
The value of r in (4,r),(r,2) so that the slope of the line containing them is is 7
<u>Solution: </u>
Slope of the line which is passes through
→ (1)
From question given that two points are (4, r), (r, 2). Hence we get
By substituting the values in equation (1),
→ (2)
Also given that slope that is m = , so on substituting the value of m in equation (2),
On simplifying,
-5r+20=6-3r
5r-3r=20-6
2r = 14
r =7
Hence value of r is 7.
Answer:
Step-by-step explanation:
The missing figure is attached.
The volume of grain that could completely fill this silo is the sum of the volume of the cylinder and the volume of the hemisphere.
By definition, the volume of a cylinder can be calculated with this formula:
Where "r" is the radius and "h" is the height.
In this case you know that:
And the volume of a hemisphere can be found using the following formula:
Where "r" is the radius.
In this case:
Therefore, the volume of grain that could completely fill this silo, rounded to the nearest whole number, is:
Answer:
C. y = 2/3x + 6
Step-by-step explanation:2/3 is the slope and 6 is the y intercept.