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2 years ago

What is the value of x in the equation −x = 3 − 4x + 6? −9 −3 3 9

Mathematics

2 answers:

givi [52]2 years ago

8 0

Answer:

x = 3

Step-by-step explanation:

-x = 3 - 4x +6

make the -4x positive and then add it to the -x

-x = 3 +6

+4x

3x = 3 +6

then add the 3 +6 together

3x = 3 + 6

3x = 9

we want to get X alone so we are going to divide 3 by both sides

3x/3 = 9/3

1x = 3

and if you did not know we usually don't show the "1" if it is in front of a exponent (you just have to remember that there is a one there)

now you have your answer

x = 3

pickupchik [31]2 years ago

7 0

Answer:

The answer is 3

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Len [333]

Answer:

Standard deviation of the length of granola bars produced at Bernie's Bars is 0.50

Step-by-step explanation:

We are given the following information in the question:

Formula:

$z_{score} = \displaystyle\frac{x - \mu}{\sigma}$

where,

μ is the mean and σ is the standard deviation.

Putting the values we get:

$\displaystyle\frac{ 3- \mu}{\sigma} = 1\\\\3 = \sigma + \mu\\\\\displaystyle\frac{ 3.5- \mu}{\sigma} = 2\\\\3.5 = 2\sigma + \mu$

Solving the two obtained equations:

Subtracting the two obtained equation, we have:

$3.5-3 = \mu + 2\sigma - \mu -\sigma\\\sigma = 0.5$

Hence, standard deviation of the length of granola bars produced at Bernie's Bars is 0.50

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3 years ago

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deff fn [24]

Angle ABC is 70 degrees

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3 years ago

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fomenos

Answer:

Step-by-step explanation:

We have to diagonalize the matrix

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we have to solve the expression

$|A-\lambda I|=0$

Thus, by applying the determinant we obtain the polynomial

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$-\lambda^3+3\lambda^2-4\lambda+2$

$\lambda_1=1\\\lambda_2=1-i\\\lambda_3=1+i\\$

and the eigenvector will be

$v_1=(-4,0,5)\\v_2=(-1,-i,-1)\\v_3=(-1,i,1)$

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3 years ago

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AlladinOne [14]

Answer:

a) 300 + 80h = x

b) $780

Step-by-step explanation:

So, the original cost is $300, plus an additional $80 times the number of hours rented.

h will represent the number of hours rented

x will represent our total cost (use whatever variable your teacher expects :))

300 + 80h = x

This is our equation. Now, we want to find the cost for 6 hours. Substitute 6 in for h.

300 + 80(6) = x Solve for x.

300 + 480 = x

780 = x This means the total cost for 6 hours will be $780.

Hope this helps :)

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2 years ago

1. The shape shown below is dilated by a scale factor of 2.6. It is in the attachment that was included.

kondaur [170]

Answer:

L' = 26cm

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Step-by-step explanation:

a) Given the dimension of the shape;

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Hence the length of each sides of the dilated image are 26cm and 39cm

b) The new image will be similar to the given image but of with the resulting length gotten in (a).

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2 years ago