Answer:
x = -3
y = 6
z = -5
Step-by-step explanation:
A) x + y + 2z = -7
B) -5z = 25
C) 3x - 3y - 6z = 3
B) -5z = 25
z = 25/-5
(z = -5)
A) x + y + 2(-5) = -7
x + y = -7 + 10
x + y = 3
(x = 3 - y)
C) 3x - 3y + 6(-5) = 3
3x - 3y + 30 = 3
3x - 3y = -30-3
3x - 3y = - 27
C) 3 (3-y) - 3y + 30 = 3
9 - 3y - 3y+ 30 = 3
-6y + 39 = 3
-6y = -39 + 3
y = -36/-6
(y = 6)
x + 6 = 3
x = 3 -6
(x = -3)
First we will multiply both sides by 2 to eliminate 1/2 from h.
2 x A = 1/2bh x 2
2A = bh
Now we divide both side by b to eliminate b from h.
2A / b = bh/b
2A/b = h
Answer:
4.62
Step-by-step explanation:
To be able to determine the volume of the entire silo, we can divide the silo into parts where we can easily calculate the volume of the parts. In this case, we divide it into a cylinder and a hemisphere. We calculate the individual volumes of these shapes and add up to represent the whole silo. We do as follows:
Volume of cylinder = πr^2h
Volume of cylinder = π( 1.6 )^2 (6.2)
Volume of cylinder = 49.86 m^3
Volume of hemisphere = 2πr^3/3
Volume of hemisphere = 2π(1.6)^3/3
Volume of hemisphere = 8.58 m^3
Volume of the whole silo = 49.86 m^3 + 8.58 m^3 = 58.44 m^3
<span>The number of different permutation of n number of objects can be written as nPr.</span>
6 x 5 x4 in nPr is 6P4 = 6! / (6-4)! or 6 x5 x4
