Answer: Solution x=27, y-7.2
(1) 2x + 5y= 18
(2) 4x + 20y= -36
Multiply equation (1) by -2:
(1) -4x - 10y= -36
(2) 4x + 20y= -36
Add (1) to (2):
(2) 4x + 20y -4x - 10y = -36 -36
-> 10y = -72
-> y=-7.2
Use the value for y in equation (1) to get x:
(1) 2x + 5(-7.2) = 18
2x -36 = 18
2x = 54
x = 27
Solution (x,y)=(27,-7.2)
The solutions are
1. If A=B implies c = then A ∪ B = B
<span>2. If B is inside A </span><span>e = then A ∩ B = B
</span>3. A ∪ Ø implies d = A
4. A ∩ Ø imiplies <span>a = Ø
</span>5. B ∪ Ø implies b = B
Answer:
Although strictly speaking of mathematics i.e. theoritically,
t
can take any value from
{
−
∞
,
∞
]
,
however, it is essentially a physical problem related to Physics and we cannot have negative
t i.e. t
≥
0
Further, after the maximum is reached at t
=
2 (observe that first differential is h
'
(
t
)
=
−
32
t
+
64
, which is zero at t
=
2 and second derivative h
'
'
(
t
)
=
−
32 is negative and at this we have h
(
2
)
=
64
), at t
=
4
, h
(
4
)
=
0 i.e. toy rocket falls back to the ground and as such, we cannot have h
>
4
.
Hence, domain for t is [
0
,
4
]
.
tbh google
<u>Complete Question</u>
The probability distribution table is given below:
Answer:
1.61
Step-by-step explanation:
The probability distribution table is given below:
We want to determine the mean number of times a person gave blood.
Expected Value,
The mean number of times a person gave blood based on this survey is 1.61.