<img src="https://tex.z-dn.net/?f=%20%7C4n%20-%201%20%7C%20%20%3D%20%20-%206" id="TexFormula1" title=" |4n - 1

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MAVERICK [17]

3 years ago

|4n - 1 | = - 6" align="absmiddle" class="latex-formula">
what's the answer

Mathematics

1 answer:

Advocard [28]3 years ago

5 0

Answer:

<h3>No solution</h3>

Step-by-step explanation:

Because the absolute value of each number is non negative

|a| ≥ 0 for all real numbers

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Solve by completing the square? Could you please work it out step-by-step?

DaniilM [7]

16 n^2 -10n + 129 = 8n^2 -8

We collect the terms:
8n^2 -10n + 137 = 0

The steps for completing the square:

1) Move the "non X" (or "non N") term to the right:

8n^2 -10n = -137

2) Divide the equation by the coefficient of N² which in this case is 8
n^2 -1.2n = -17.125 

3) Take the coefficient of "N"; divide it by 2; square it; add it to both sides of the equation.
-1.2 / 2 = -.6
-.6^2 = .36


n^2 -1.2n +.36 = -17.125 +.36

Take the square root of both sides:
(n-.6)*(n-.6) = sq root( -16.765 )
That's about as far as I can go.

4 0

3 years ago

Study the given data set. {77,4,62,10,45,9,38,80,2}. What is the standard deviation of the data?

vladimir1956 [14]

Answer:

29.7 is the standard deviation :)

4 0

3 years ago

Semicircles and quarter circles are types of arc lengths. Recall that an arc is simply part of a circle. We learned about the de

attashe74 [19]

The question is incomplete. Here is the complete question.

Semicircles and quarter circles are types of arc lengths. Recall that an arc is simply part of a circle. we learned about the degree measure of an ac, but they also have physical lengths.

a) Determine the arc length to the nearest tenth of an inch.

b) Explain why the following proportion would solve for the length of AC below: $\frac{x}{12\pi } = \frac{130}{360}$

c) Solve the proportion in (b) to find the length of AC to the nearest tenth of an inch.

Note: The image in the attachment shows the arc to solve this question.

Answer: a) 9.4 in

c) x = 13.6 in

Step-by-step explanation:

a) $\frac{arclength}{2\pi.r } = \frac{mAB}{360}$ , where:

r is the radius of the circumference

mAB is the angle of the arc

arc length = $\frac{mAB.2.\pi.r }{360}$

arc length = $\frac{90.2.3.14.6}{360}$

arc length = 9.4

The arc lenght for the image is 9.4 inches.

b) An arc length is a fraction of the circumference of a circle. To determine the arc length, the ratio of the length of an arc to the circumference is equal to the ratio of the measure of the arc to 360°. So, suppose the arc length is x, for the arc in (b):

$\frac{x}{2.6.\pi } = \frac{130}{360}$

$\frac{x}{12\pi } = \frac{130}{360}$

c) Resolving (b):

x = $\frac{130.12.3.14}{360}$

x = 13.6

The arc length for the image is 13.6 inches.

6 0

3 years ago

4380 rounded to the nearest 100

maks197457 [2]

4,400

The number 3 is in the hundredths place the 8 is behind the 3 so it’s larger than 5 so you turn the 3 into a 4(4,400) and turn all the numbers behind zero (4,400).

4 0

3 years ago

Read 2 more answers

Solve for j in the literal equation h-4/j

igor_vitrenko [27]

Answer:

$h - 4 \div j = 0 \\ - 4 \div j = - h \\ 4 \div j = h \\ j = 4 \div h$

3 0

3 years ago