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Makovka662 [10]
3 years ago
5

Solve for x.3(3x - 1) + 2(3 - x) = 0

Mathematics
2 answers:
mote1985 [20]3 years ago
5 0
9x-3+6-2x=0
7x+3=0
X=-3/7
Rashid [163]3 years ago
5 0
( 3x × 1) + 2 ( 3 - x) → 0

3 × 3x  -  1 +  2 × ( 3 - x ) = 0  

7x + 3 = 0 

7x = -3 

[tex]x = \frac{3}{7} [/tex]
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6 1/3 +2 3/8 = 17/24 so you have to subtract it from the 2 1/4 fluid to know the amount of dressing remaining and your answer should be negative which is -37/24.
6 0
3 years ago
Suppose X has an exponential distribution with mean equal to 23. Determine the following:
e-lub [12.9K]

Answer:

a) P(X > 10) = 0.6473

b) P(X > 20) = 0.4190

c) P(X < 30) = 0.7288

d) x = 68.87

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

Mean equal to 23.

This means that m = 23, \mu = \frac{1}{23} = 0.0435

(a) P(X >10)

P(X > 10) = e^{-0.0435*10} = 0.6473

So

P(X > 10) = 0.6473

(b) P(X >20)

P(X > 20) = e^{-0.0435*20} = 0.4190

So

P(X > 20) = 0.4190

(c) P(X <30)

P(X \leq 30) = 1 - e^{-0.0435*30} = 0.7288

So

P(X < 30) = 0.7288

(d) Find the value of x such that P(X > x) = 0.05

So

P(X > x) = e^{-\mu x}

0.05 = e^{-0.0435x}

\ln{e^{-0.0435x}} = \ln{0.05}

-0.0435x = \ln{0.05}

x = -\frac{\ln{0.05}}{0.0435}

x = 68.87

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3 years ago
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adelina 88 [10]

Answer:

a Hitachi 50 plasma tv at 495 per month for 6

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3 years ago
Jackie filled the blue water balloon with 12.25 ounces of water and the red water balloon with 5.5 ounces of water.
zloy xaker [14]
Hey You!

12.25 - 5.5 = 6.75

The blue balloon had 6.75 more ounces of water than the red one.
5 0
3 years ago
Read 2 more answers
xy==16−????2????3−16???? is symmetric about the x-axis. (If ???? gives us the point (x,y), then −???? will give (x,−y) ). At whi
mote1985 [20]

Answer: The expression for a and y are not clear, however whatever expressions you are give, you can use the same approach as solved in the attached file.

At which x value is the tangent to this curve horizontal = 176/3

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Step-by-step explanation:

The steps and appropriate derivation is as shown in the attachment.

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3 years ago
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