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Harrizon [31]
3 years ago
14

The function F is defined by the following rule ? f(x)=3x+4

Mathematics
1 answer:
tangare [24]3 years ago
7 0
The answer would be - 4 over 3


The way to do it is to first make the f(x) a 0
So now the problem looks like this: 0=3x+4

Now you would move the variable to the left hand side to change the sign so it will look like this: -3x=4

Finally, divide both sides of the equation by -3 to get your final answer :)
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PLEASE HELP I DON'T KNOW THIS ANSWER!!!!
Dmitry [639]

Answer:

A= Yes

B= No

C= Yes

D= No

Step-by-step explanation:

3 0
4 years ago
A procurement specialist has purchased 25 resistors from vendor 1 and 30 resistors from vendor 2. Let
Ulleksa [173]

Answer:

Normal Distribution

Standard error = 0.473

Step-by-step explanation:

We are given the following information:

A procurement specialist has purchased 25 resistors from vendor 1  are assumed to be normally distributed with mean 100 ohms and standard deviation 1.5 ohms.

x_{1,1}, x_{1,2}, ... , x_{1,25}\\\mu_{1} = 100\\\sigma_1 = 1.5

A procurement specialist has purchased 30 resistors from vendor 2 are assumed to be normally distributed with mean 105 ohms and standard deviation 2.0 ohms.

x_{2,1}, x_{2,2}, ... , x_{2,30}\\\mu_{2} = 105\\\sigma_1 = 2.0

The difference of two independent normally distributed random variables is normal, with its mean being equal to the difference of the two means, and its variance being the sum of the two variances.

Thus, the sampling distribution of X_1-X_2 is a normal distribution.

Mean =

100 - 105 = -5

Standard error =

\sqrt{\displaystyle\frac{\sigma_1^2}{n_1} + \frac{\sigma_2^2}{n_2}}\\\\=\sqrt{\displaystyle\frac{(1.5)^2}{25} + \frac{(2)^2}{30}}\\\\= 0.473

8 0
3 years ago
What is the perimeter, in terms of x, of the rectangle shown here?​
MaRussiya [10]
8x^2+10x-18
The explanation is in the picture below if needed

3 0
3 years ago
Which of the following is a point-slope equation of a line that passes through the points (-1,4) and (8,-2)
dexar [7]

Answer:

y = (2/3)x + 4 2/3

Step-by-step explanation:

For reference, a linear function has an equation of y = mx + b

The first thing we're going to do is use the slope formula, \frac{y2-y1}{x2-x1} or rise over run. In this case that looks like:

(-2-4) - (8 - -1)

-2 -4 comes out to - 6, and the denominator comes out to 9.

6/9 is equal to 2/3, which is our m or slope value.

Next we want to find the b value, or our y-intercept. To do that we'll plug one of the points into the equation with our new-found slope:

4 = (2/3)-1 +b

4 = -2/3 + b

4 2/3 = b

That means our complete equation is:

y = (2/3)x + 4 2/3

OR

y = (2/3)x + 14/3 (equivalent but an improper fraction rather than a mixed fraction).

4 0
3 years ago
Solve for a: 3/5a = 1/4​
NNADVOKAT [17]

Answer: a=5/12

<u>Multiply both sides by 5/3</u>

<u></u>(5/3)*(3/5a)=(5/3)*(1/4)\\a=5/12<u></u>

7 0
4 years ago
Read 2 more answers
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