Answer:
X=10
X=-8
Step-by-step explanation:
(x+1)*(x-3)=77
x²-3x+x-3=77
x²-2x-3=77
x²-2x-3-77=0
x²-2x-80=0
(x-10)*(x+8)=0
x-10 = 0
x=10
x+8=0
X=-8
<span>milliliters to centiliters
</span>
1 ml is 1/1000
1 cl is 1/100
for every cl, it takes 10 ml.
So we can take 800 and divide it by 10. Right?
It's 80/100.
So. we can jump directly from <span>milliliters to centiliters</span>
50/100 + 70x / 100 = (5 + x) * 22/100
50 + 70x = <span>(5 + x) * 22
50 + 70x = 110 + 22x
48x = 60
х = 1 1/4 = 1,25</span>
Answer:
Step-by-step explanation:
Given
Solving (a): The marginal density of X
This is calculated as:
Integrate
Substitute 1 and 0 for y
Solving (b): The marginal density of Y
This is calculated as:
Integrate
Substitute 1 and 0 for x
Solving (c): The probability that the drive-through facility is busy less than one-half of the time.
This is represented as:
The solution is as follows:
Represent as an integral
Integrate w.r.t. x
Express as a fraction, properly
Y^2 = 12^2 - 6^2
y^2 = 144 - 36
y^2 = 108
y = 6<span>√3
</span>
answer is <span>B.6√3</span>