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mars1129 [50]
3 years ago
9

Y=2x-4 -21x + 3y = 3

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

It's a stretch, but I'm gonna guess Y = 12.

Step-by-step explanation:

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HELP ME ON THESE THREE QUESTIONS!!!!!!!!!!!!!!!!!!!!!!
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8 0
3 years ago
F(x)=4x+3x g(x)=2x-5 find (f-g)(x)
HACTEHA [7]
F(2x-5)=14x-35
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6 0
4 years ago
The starting salary for a computer programmer major has a mean of $39,269 and a standard deviation of $2550. The probability tha
Nimfa-mama [501]

Answer:

The probability that a randomly selected programmer major received a salary less than 38000 is 0,3085

Step-by-step explanation:

We will assume that the salaries are Normally distributed. Lets call X the salary of a random major programmer in dollars. We want the pprobability of X being less than 38000. For it, we will standarize X. Lets call W the standarization, given by the formula

W = \frac{X-\mu}{\sigma}=\frac{X-39269}{2550}

Lets denote \phi the cumulative distribution function of the standard normal variable W. The values of \phi are well known and they can be found in the attached file. Now, lets calcualte the probability of X being less than 38000 using \phi

P(X

Since the density function of a standard normal random variable is symmetric, then \phi(-0.50) = 1-\phi(0.50) = 1-0.6915 = 0.3085

The probability that a randomly selected programmer major received a salary less than 38000 is 0,3085.

Download pdf
7 0
3 years ago
Read 2 more answers
2x + (3 - x) how do I do this
Nikitich [7]

Hey there!

<h3>2x + 3 + (-x) </h3><h2>Combine Like Terms </h2><h3>2x + 3 + (-x) </h3><h3>( 2x + (-x) )  + 3 </h3><h3 /><h2>Answer: </h2><h3>x + 3 </h3>

Good luck on your assignment and enjoy your day!

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<h3 />
3 0
3 years ago
7. Which expression is equivalent to the expression (5.5 X 107)(3.2 x 10') 2 X 105
levacccp [35]

Answer:

soln:

(5.5 × 107)

(3.2 × 10')

+ 2 × 105

_______________

8.8. ×.1011

4 0
3 years ago
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