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2 years ago

Identify the coefficient of 17 ×y3 z12

Mathematics

1 answer:

Lemur [1.5K]2 years ago

5 0

17 X y3z12 ? I would imagine 17 being the coefficient. I could be wrong because I don't quite understand the equation.

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Dustin had $52 he got $49 more and then he spent some money dustin has $35 left how much money did dustin spend

sveta [45]

The answer: Dustin spent $66

$52+$49=$101
$101-$35=$66

5 0

3 years ago

Read 2 more answers

Listed below are prices in dollars for one night at different hotels in a certain region. Find the range, variance, and standar

Artyom0805 [142]

Answer:

Range = 115$

Standard Deviation = 43.76$

Variance = 1915.142$

Option A) The measures of variation are not very useful because when searching for a room, low prices, location, and good accommodations are more important than the amount of variation in the area.

Step-by-step explanation:

We are given the data for prices in dollars for one night at different hotels in a certain region.

234, 160, 119, 131, 218, 207, 146, 141

Range:

Sorted data: 119, 131, 141, 146, 160, 207, 218, 234

$\text{Range} = 234-119 = 115\$$

Standard Deviation:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1356}{8} = 169.5$

Sum of squares of differences = 4160.25 + 90.25 + 2550.25 + 1482.25 + 2352.25 + 1406.25 + 552.25 + 812.25 = 13406

$\sigma = \sqrt{\dfrac{13406}{7}} = 43.76\$$

Variance =

$\sigma^2 = 1915.142\$$

Measure of variance for someone searching for room:

Option A) The measures of variation are not very useful because when searching for a room, low prices, location, and good accommodations are more important than the amount of variation in the area.

5 0

3 years ago

Is the function “ y = 3x “ a direct variation?

LuckyWell [14K]

Given function is a direct variation

Step-by-step explanation:

The direct proportion is defined as the increase in one quantity causes increase in other quantity.

If y is directly proportional to x, then it is given as:

y = kx

where k is the constant of proportionality

Given

y = 3x

Comparing the general form and given equation we see that both are same where k =3

So,

Given function is a direct variation

Keywords: Variation, functions

Learn more about functions at:

#LearnwithBrainly

3 0

2 years ago

Write an equation of the line that passes through the points (-9, 4) and (-10,8) in

MrRissso [65]

Answer:

y = -4x - 32

Step-by-step explanation:

First, find the slope using rise over run (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(8 - 4) / (-10 + 9)

4 / -1

= -4

So, the slope is -4. Plug in the slope and a point into y = mx + b, and solve for b:

y = mx + b

4 = -4(-9) + b

4 = 36 + b

-32 = b

Then, plug in the slope and y intercept into y = mx + b

y = -4x - 32 is the equation of the line

4 0

2 years ago

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If m = 34 and n = 5, what is the value of the following expression?

LekaFEV [45]

Answer:

option D .....11 ✔

Step-by-step explanation:

we put the value of m and n

$\longrightarrow \: 34 - 5 \times 5 + 2$

$\longrightarrow \: 34 - 25 + 2$

$\longrightarrow \: 36 - 25$

$\longrightarrow \: 11$

choose options D

Hope it's help :D

4 0

2 years ago

Read 2 more answers