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3 years ago

5(x-6)= 2(x+3)2 Need help fast ? Any one plz

Mathematics

1 answer:

erastovalidia [21]3 years ago

8 0

Answer:

The question needs more information. We don't know what's the x. The number that represents the variable X in the parentheses. Or it could be like:

Step-by-step explanation:

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Someone please help! I gave this extra points because the question has a picture. I will give thanks and 5 star for any answer.

tiny-mole [99]

Answer:

53°

Step-by-step explanation:

x + (2x + 21) = 180

(Corresponding angles &

Supplementary angles)

3x + 21 = 180

3x = 159

x = 53°

7 0

3 years ago

Which equations have a unit rate of change of 4.5 ? select 2 answers

Maurinko [17]

Answer:

Options A and C

Step-by-step explanation:

To have a unit rate of change of 4.5 means to have the slope at 4.5

A. y = 62 + 4.5x GOOD

B. c = 4.5 + 3h - 1 WRONG

C. c = 12 + 4.5h - 4.5 GOOD

D. y = 3.5x + 1 WRONG

E. y = 4.5 + 20x WRONG

Answer: Options A and C

3 0

3 years ago

A lumber company is making boards that are 2920.0 millimeters tall. If the boards are too long they must be trimmed, and if the

Effectus [21]

Answer:

The value of the test statistic is of 0.22.

Step-by-step explanation:

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected mean, $\sigma$ is the standard deviation(square root of the variance) and n is the size of the sample.

A lumber company is making boards that are 2920.0 millimeters tall.

This means that $\mu = 2920$ .

A sample of 12 is made, and it is found that they have a mean of 2922.7 millimeters with a variance of 121.00.

This means that $X = 2922.7, n = 12, \sigma = \sqrt{121} = 11$ . So

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{2922.7 - 2922}{\frac{11}{\sqrt{12}}}$

$t = 0.22$

The value of the test statistic is of 0.22.

4 0

2 years ago

Y = 2x^2+4x-3 If you were to do a quadratic formula then what is a,b, and c?

jasenka [17]

Part 1:
a = 2
b = 4
c = -3
Part 2: the parabola will open up
Part 3: axis of symmetry x = -1

6 0

3 years ago

Read 2 more answers

4x - 1 2. = x + 7 Can someone help please?

tatiyna

Answer:

6 $\frac{1}{3}$

Step-by-step explanation:

4x-12 = x+7

4x-12+12 = x+7+12

4x = x+19

4x-x = x+19-x

3x=19

x = 6 $\frac{1}{3}$

And if we substitute the value of x into the equation 4x-12 = x+7,

we will get 13 $\frac{1}{3}$ = 13 $\frac{1}{3}$ in the end.

Hope this helps :)

3 0

3 years ago

Read 2 more answers