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3 years ago

ALREADY SOLVED - the system of equations has no solution.

Mathematics

1 answer:

Anastasy [175]3 years ago

6 0

They run parallel to each other when graphed.

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number of customers in a store on the first day is represented by (6x-3). the number of customers on the second day is represent

fiasKO [112]

6x- 3 is 6×(50)- 3
X- 1 is 50- 1

4 0

3 years ago

You can buy 4 pieces of chicken for $6.80. Write an equation that can be used to express the relationship between the total pric

AfilCa [17]

Answer:

t=6.80

c=4

4c=6.80t

4 0

3 years ago

6th grade math ! help me please :)

malfutka [58]

1. N + 2; n = 6: the answer is 8 because n=6 so we sub n with that... and we get 6+2 and that’s 8.

2.5f; where f=4: the answer is 20 because when a variable is directly next to a number it is multiplied by that number so we will replace f with 4 and our equation is now 5(4) or 5•4 and both are equivalent to 20.

3. 7b-2; where b=5: the answer is 33 because 7 multiplied by 5(b) minus 2= 7(5)-2 or 7•5-2= 33 because you will multiply 7 by 5 and get 33 then you will subtract by 2 and get 33.

Hope this helps!!!

7 0

3 years ago

Write each sum or difference as a product with positive arguments -4(sin4x - sin2x) A) 8cos 3xsin x B) 8sin xsin 3x C) -8cos 3xs

pshichka [43]

Answer:

C) -8cos 3xsin x

Step-by-step explanation:

To express -4(sin4x - sin2x) as a product, we use the formula sinA - sinB = 2cos[(A + B)/2]sin[(A - B)/2.

Comparing sin4x - sin2x with sinA - sinB, A = 4x and B = 2x.

Substituting these into the equation, we have

sin4x - sin2x = 2cos[(4x + 2x)/2]sin[(4x - 2x)/2

sin4x - sin2 x = 2cos[6x/2]sin[2x/2]

sin4x - sin2x = 2cos3xsinx

So, -4(sin4x - sin2x) = -4(2cos3xsinx) = -8cos3xsinx

So, -4(sin4x - sin2x) = -8cos3xsinx

Thus, the answer is C

5 0

3 years ago

How to find the mean of a probability distribution?

e-lub [12.9K]

That depends. If you have a finite data set, you would add up all the points you have and divide by the total count.

Or, if you are working with pure distributions, the mean is the same as the expected value of the corresponding random variable.

Suppose you have a discrete random variable $X$ with a given probability mass function $f_X(x)$ , then the mean is given by

$\mathbb E(X)=\displaystyle\sum_xxf_X(x)$

which would mean you take all the possible probability for the event that $X=x$ , multiply each by that $x$ , and add them together.

If the distribution is continuous, say a random variable $Y$ that has probability distribution function $f_Y(y)$ over some support $S$ , then the mean is

$\mathbb E(Y)=\displaystyle\int_Syf_Y(y)\,\mathrm dy$

3 0

3 years ago