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liraira [26]
3 years ago
11

What is -3root2 x 3root2? Pls help ASAP

Mathematics
1 answer:
VikaD [51]3 years ago
5 0

Answer:

-18

Step-by-step explanation:

-3 √2 * 3 √2

= -9 * (√2)²

= -9 * 2

= -18

Hope this answer was helpful!!

Regards...

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What is true of the graph of two lines 3y-8=-5x and 6y=-10x+16
Murljashka [212]

Answer:

Both lines are equal (they are the same)

<em></em>

Step-by-step explanation:

Given

3y - 8 = -5x

6y = -10x + 16

Required

What is true about graph of both lines

<em>Questions like this are better solved when there's option(s) to select from. However, some of the properties of line equation that I'll consider are to check  if both lines are either parallel or perpendicular</em>

<em />

To do this,

The first thing to do is to calculate the slope of both lines

3y - 8 = -5x

Add 8 to both sides

3y - 8 + 8 = -5x + 8

3y = -5x + 8

Divide both sided by 3

\frac{3y}{3} = -\frac{5x}{3} + \frac{8}{3}

y = -\frac{5x}{3} + \frac{8}{3}

The slope of the line is the coefficient of x;

Slope = -\frac{5}{3}

Solve for the y intercept; <em>Let x = 0</em>

y = -\frac{5 * 0}{3} + \frac{8}{3}

y = 0 + \frac{8}{3}

y = \frac{8}{3}

Solve for the x intercept; <em>Let y = 0</em>

0 = -\frac{5x}{3} + \frac{8}{3}

Subtract \frac{8}{3} from both sides

0 - \frac{8}{3} = -\frac{5x}{3} + \frac{8}{3} - \frac{8}{3}

- \frac{8}{3} = -\frac{5x}{3}

Subtract both sides by -\frac{3}{5}

-\frac{3}{5}*- \frac{8}{3} = -\frac{5x}{3} * -\frac{3}{5}

-\frac{3}{5}*- \frac{8}{3} = x

\frac{3}{5} * \frac{8}{3} = x

\frac{8}{5} = x

x = \frac{8}{5}

------------------------------------------------------------------------------------------------------

6y = -10x + 16

Divide both sides by 6

\frac{6y}{6} = -\frac{10x}{6} + \frac{16}{6}

y = -\frac{10x}{6} + \frac{16}{6}

Simplify fractions to lowest term

y = -\frac{5x}{3} + \frac{8}{3}

The slope of the line is the coefficient of x;

Slope = -\frac{5}{3}

Solve for the y intercept; <em>Let x = 0</em>

y = -\frac{5 * 0}{3} + \frac{8}{3}

y = 0 + \frac{8}{3}

y = \frac{8}{3}

Solve for the x intercept; <em>Let y = 0</em>

0 = -\frac{5x}{3} + \frac{8}{3}

Subtract \frac{8}{3} from both sides

0 - \frac{8}{3} = -\frac{5x}{3} + \frac{8}{3} - \frac{8}{3}

- \frac{8}{3} = -\frac{5x}{3}

Subtract both sides by -\frac{3}{5}

-\frac{3}{5}*- \frac{8}{3} = -\frac{5x}{3} * -\frac{3}{5}

-\frac{3}{5}*- \frac{8}{3} = x

\frac{3}{5} * \frac{8}{3} = x

\frac{8}{5} = x

x = \frac{8}{5}

-------------------------------------------------------------------------------------------------------

By comparing the slope, x intercept and y intercept of both lines;

It'll be observed that they have the same slope, x intercept and y intercept

<em>This implies that both lines are equal; in other words, they are the same.</em>

6 0
3 years ago
What is 4 less than the quotient of twice a number and 3 translated to an algebraic expression?
Drupady [299]

Answer:

(2x/3) - 4

Step-by-step explanation:

"twice a number" ---> 2x

"quotient of twice a number and 3" ---> 2x/3

"4 less than" -->  (2x/3) - 4

Could also be written as (2/3)x - 4

5 0
3 years ago
Please help cuz i ok with math but not this type of math so PLEASE HELP ME!
Korolek [52]

Answer:

y=1x-4

Step-by-step explanation:

The original is

y=mx+b

m is the slope   and b is the y intercept

8 0
3 years ago
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Studentka2010 [4]

Answer:

The study examined stochastic stability of EEG samples recorded in succession from the same healthy volunteer at unchanged state. The absence of statistical repetitions not only for EEG samples, but also for the corresponding spectral densities was proven. A method to calculate the pairwise comparison matrices of ECG samples and quasi-attractors was proposed. The diagnostic effectiveness of these calculations was demonstrated during photostimulation, when successive EEG samples chaotically changed under overall homeostatic conditions.

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Citations (13)

References (16)

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... that the European Association of Cardiology recommends registering the heart rate for at least 5 minutes (for example, the parameters of the cardio intervals). At the same time, it is believed that during this period a sample of 300 (or more) cardio intervals will be obtained, and this sample should be quite representative [14][15][16][17][18]. ...

... What kind of evidence-based medicine can we talk about in the study of cardiovascular system if 85% or more of the compared cardio intervals samples do not statistically coincide (they do not belong to the same general population)? Obviously, further use of stochastic methods is not advisable [14][15][16]20-23] for cardiovascular system studying, which was pointed out by W. Weaver [8]. ...

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8 0
2 years ago
Kidney beans $1.18 per pound
Stels [109]

Answer:

1.18x=y

Step-by-step explanation:

x= amount of pounds of kidney beans

y= the cost

5 0
2 years ago
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