Please help I'll give brainliest to right answer
20m + 6m − 17m = 9
What does "M" equal?

The vector sum \(\mathbf{u}+\mathbf{v}\)  is approximately equal to \(3.9\left < \cos 26^{\circ},,\sin 26^{\circ}\right > , 3.9⟨cos26∘, sin26∘⟩\) in magnitude and direction form.

To find the sum of two vectors, we add their corresponding components. In this case, \(\mathbf{u}+\mathbf{v} = 7\left < \cos 0^{\circ},,\sin 0^{\circ}\right > + 4\left < \cos 135^{\circ},,\sin 135^{\circ}\right >\). Evaluating the x- and y-components separately, we get:

\(\mathbf{u}+\mathbf{v} = (7\cos 0^{\circ} + 4\cos 135^{\circ}),\mathbf{i} + (7\sin 0^{\circ} + 4\sin 135^{\circ}),\mathbf{j}\)

\(\mathbf{u}+\mathbf{v} = 3.9,\left < \cos 26^{\circ},,\sin 26^{\circ}\right >\)

To write the answer in magnitude and direction form, we can use the ormula \(\left|\mathbf{u}+\mathbf{v}\right| = \sqrt{(u_1+v_1)^2 + (u_2+v_2)^2}\) for the magnitude, and \(\theta = \tan^{-1}\left(\frac{u_2+v_2}{u_1+v_1}\right)\) for the direction. Plugging in the values, we get:

\(\left|\mathbf{u}+\mathbf{v}\right| \approx 3.9\theta \approx 26^{\circ}\)

Therefore, the vector sum \(\mathbf{u}+\mathbf{v} is approximately equal to 3.9\left < \cos 26^{\circ},,\sin 26^{\circ}\right > , 3.9⟨cos26∘, sin26∘⟩\) in magnitude and direction form.

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When rolling a six-sided die, there are six possible outcomes: 1, 2, 3, 4, 5, or 6. Event B is rolling an even number, which means there are three possible outcomes: 2, 4, or 6. Since there are only three possible outcomes in Event B, it is a simple event.
Let's analyze the event and outcomes when rolling a six-sided die.

Event B: Rolling an even number.

Step 1: Identify the possible outcomes.
When rolling a six-sided die, the outcomes are numbers 1 to 6 (1, 2, 3, 4, 5, and 6).

Step 2: Determine the outcomes in the event.
For Event B, the even numbers are 2, 4, and 6. So, there are 3 outcomes in Event B.

Step 3: Decide if the event is a simple event or not.
An event is considered a simple event if it has only one possible outcome. Since Event B has 3 possible outcomes (2, 4, and 6), it is not a simple event.

Event B (rolling an even number) has 3 possible outcomes (2, 4, and 6), and it is not a simple event.

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The correct option is C: Cluster around a horizontal line when graphed are distributed equally along both axes.

A level within a phase is defined as a set of observations that cluster around a horizontal line when graphed. This means that the data points tend to remain relatively constant or steady during that particular phase.

When plotted on a graph, these observations form a horizontal line, indicating little variation or change. This stability implies that the system or process being observed is in a balanced state, with minimal fluctuations or disturbances.

The horizontal line represents a steady state, indicating that the system or process being observed is maintaining a consistent level without significant fluctuations or trends.

A stable level is characterized by a consistent and predictable pattern, which can be useful in analyzing and understanding the behavior of the system or process over time.

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Note that It is not a good idea to guess what a value on a graph might be if it is beyond the points that are already plotted. The reason for this is that the guess might not be accurate. Generally, it is better to stay within the defined data limits.

In mathematics, a graph is defined as a graphical representation or diagram that organizes facts or values. The graph's points frequently reflect the relationship between two or more objects.

Because they display information quickly and readily, graphs and charts are powerful visual aids. It's no surprise that graphs are widely utilized in print and electronic media. Data can often be easier understood when displayed as a graph rather than a table since the graph might illustrate a pattern or comparison.

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The best description of the sample selected by the administrator is Stratified Random Sample that is option D is correct.

Stratified Random Sampling is the method of sampling in which data of population or any other demographic study is divided into smaller subgroups or subdivisions and then measurements are carried out. These subdivisions are known as Strata. The subdivisions are made on the basis of the attributes of the people of the population such as their income statement or their educational qualifications. This type of sampling technique is also known as random or quota random sampling technique. This sampling technique is also used in determining the life expectancy data. It allows researchers to develop a sample of a small area that represents the entire area.

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Complete Question:

as part of a demographic study, a college administrator needed to survey a sample of students from the college. from each major offered at the college, the administrator randomly selected 5 percent of the students with that major to participate in the survey. which of the following is the best description of the type of sample selected by the administrator?

a)cluster sample

b)convenience sample

c)simple random sample

d)stratified random sample

e)systematic random sample

Answer:

1

Step-by-step explanation:

hey there,

< 3x-7x = -20-5

-4x = -25

x = \(\frac{25}{4}\)

This isn't a square root or anything like that, so you would really only have 1 answer. I'm not sure what your teacher's referring to, though, but maybe they want decimals/mixed fractions?

But I would just put 1 if I were you. >

Hope this helped! Feel free to ask anything else.

Answer:

number 24 = 73

Step-by-step explanation:

133-50 = 73

number 25 = 180

160+ 20= 180

Answer:

135

Step-by-step explanation:

its the base (9) times the height (15)

Answer:

135

Step-by-step explanation:

because of the rule base times hight  we know it is 135

if the number of times you take the test were independent variable of the chance you fail what could that mean the difficulty of the test is consistent and unchanging.

The difficulty of the test is consistent and unchanging, making it so that the chance of failing is solely determined by the individual's performance on the test. Factors such as knowledge of the subject and the ability to focus can play a role in a person's success, but the actual chance of failing is not affected by how many times the test is taken. This means that those who fail the test will have to work harder and prepare better in order to pass it on the next attempt. Taking the test multiple times does not guarantee a higher chance of success, as the difficulty remains the same each time due to independent variable.

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Answer:

B

Step-by-step explanation:

I took the assignmen.

The reflection of point that will produce the image at same coordinate (0, k) is across the y - axis

We have a Point with coordinates  (0, k).

We have to find the reflection that will produce the image at the same coordinate (0, k).

For a Point P \((x,y)\) the image across -

We can use the above laws to find the reflection of point

For Point P(0,k) , the -

Hence, the reflection of point that will produce the image at same coordinate \((0,k)\) is across the y - axis.

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Answer:

Formula for volume of cylinder;

V = π\(r^{2}\)h

Where 'π' is pi(22/7 or 3.14), 'r' is the radius which is being squared, and 'h' represents the height.

Plug in your values given that;

8 in. = height

4 in. = radius

V = π\(r^{2}\)h

V = 3.14(4^2) x 8

V = 3.14(16) x 8

V = 50.24 x 8

V = 401.92 cubic inches or \(401.92^{3}\) inches is the volume.

The multiplicative rate of change of the function is 2.

The pace at which one quantity changes in relation to another quantity is known as the rate of change function. The rate of change will be calculated by the ratio of the change of the dependent variable to the change of the independent variable.

Given that the values of the variables x and y are,

x    y

1     6

2    4

The rate of change will be calculated as,

Rate  of change  = ( y₂ - y₁ ) / ( x₂ - x₁ )

Rate  of change  = (4 - 6 ) / ( 2 - 1 )

Rate of change = -2

The multiplicative rate of change will be 2.

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The limit is not equal to zero, the series is divergent. Therefore, the answer is DIVERGES.

The given series is the sum of terms arctan(3n) from n=0 to infinity:

Σ(arctan(3n)) from n=0 to infinity

To determine if this series is convergent or divergent, we can use the Test for Divergence. If the limit of the individual terms as n approaches infinity is not equal to zero, then the series diverges:

lim (n→∞) arctan(3n)

Since arctan(x) approaches π/2 as x approaches infinity, we have:

lim (n→∞) arctan(3n) = π/2

Since the limit is not equal to zero, the series is divergent. Therefore, the answer is DIVERGES.

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32 kilometers + 35 kilometers + 17 kilometers

= 67 kilometers + 17 kilometers

= 84 kilometers

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Answer:

84 kilometers

I hope it will help you po

Act now to stop developers from building on 600 m² of land.

A system of measurements is called the metric system. It is employed in calculations and research across the globe.

Here are some illustrations of how the metric system is used to measure various objects.

Measurements for length include millimeters (mm), decimeters (dm), centimeters (cm), meters (m), and kilometers (km).

The developer's measurement is in kilometers and the environmental group measures in meters.

Given, The area they are building is 0.6 square km of land.

We know, 1 kilometer is equal to 1000 m.

Therefore, The environmental group should put 0.6×1000 = 6000 sq km of land.

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Answer:

X+49+28=180

Step-by-step explanation:

All prisms that have a volume between 25 and 40 cubic units from the attached figure is a, c and f. The prisms b and e have volume greater than 40 cubic units and d has volume less than 25 cubic units.

a) Cube with sides 3in

Volume = a³

Volume = 3³

Volume = 27 in³

b) Cuboid with length, l = 7in, breadth, b = 3in and height, h = 2in.

Volume = lbh

Volume = 7×3×2

Volume = 42 in³ > 40

So not selected

c) Cuboid with length, l = 4in, breadth, b = 4in and height, h = 2in.

Volume = lbh

Volume = 4×4×2

Volume = 32 in³

d) Cuboid with length, l = 6in, breadth, b = 2in and height, h = 2in.

Volume = lbh

Volume = 6×2×2

Volume = 24 in³ < 25

So not selected

e) Cuboid with length, l = 3in, breadth, b = 6in and height, h = 3in.

Volume = lbh

Volume = 3×6×3

Volume = 54 in³ > 40

So not selected

f) Cuboid with length, l = 3in, breadth, b = 2in and height, h = 6in.

Volume = lbh

Volume = 3×2×6

Volume = 36 in³

--The question is incomplete, answering to the question in reference to the attached figure--

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Answer:

400 texts

Step-by-step explanation:

Answer:

The answer is A)

Step-by-step explanation:

(a) the sample mean is 0.0494 and the sample variance is 0.000016, (b) the upper quartile is 0.04775, and the lower quartile is 0.0510, (c) the sample median is 0.04975, (d) boxplot is attached, and (e) the 5th and 95th percentiles of the inside diameter are 0.03974 and 0.056995 respectively.

(a) The mean = sum of all values divided by the number of values

μ = (x1 + x2 + ..... + xn)/n

n = 20

μ = (0.0395 + 0.0443+ 0.0450 + ... + 0.0550 + 0.0571)/20

μ = 0.9878/20

μ = 0.0494

(b) Variance = sum of squared deviations from the mean divided by n-1

s² = {(x1-μ)² + (x2-μ)² + .... (xn - μ)²)/(n-1)

s² = {(0.0395-0.0494)² + (0.0443-0.0494)² + .... +(0.0571-0.0494)²}/19

s² = 0.000016

(b) The minimum is 0.0395 and the maximum is 0.0571.

since the number of data is even, the median will be the average of two middle values.

M = Q2 = (0.0496+0.0499)/2 = 0.04975

Now, the first quartile is the median of the data values below the median

so Q1 = (0.0470+0.0485)/2 = 0.04775

And third quartile will be the median of the data values above the median

Q3 = (0.0504+0.0516)/2 = 0.0510

(c) Since we know that the number of data values is even, the median will be the average of the two middle values of the data set

so M = (0.0496+0.0499)/2

or M = 0.04975

(d) The boxplot is at maximum and minimum values. It will start in Q1 and end in Q3 and has a vertical line at the median or Q2.

The boxplot is attached.

(e) The 5th percentile means 0.05(n+1)th data value

or = 0.05(20+1) = 1.05th data value

5th percentile = 0.0550 + 0.05(0.0443-0.0395) = 0.03974

similarly,

95th percentile = 0.0550 + 0.95(0.0571-0.0550) = 0.056995

Therefore, (a) the sample mean is 0.0494 and the sample variance is 0.000016, (b) the upper quartile is 0.04775, and the lower quartile is 0.0510, (c) the sample median is 0.04975, and (e) the 5th and 95th percentiles of the inside diameter are 0.03974 and 0.056995 respectively.

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Answer:

250

Step-by-step explanation:

add all numbers which gives the number

Answer:

60°

Step-by-step explanation:

Because that is an equiangular triangle all the angles are the same. Which is 60°

Answer:

60 Degrees

Step-by-step explanation:

Because it's an equilateral triangle and all the angles are all the same!

It adds up to 180 Degree

Answer:

D

Step-by-step explanation:

w = width

length = w + 0.6

A = l · w

A = w (w + 0.6)

A = w² +.6w

Answer:

D

Step-by-step explanation:

w = width

l = length = w + 0.6

Area = ( l ) * ( w )

Area = ( w + 0.6 ) ( w )

Area = w^2 + 0.6w

Answer:

Today: Monday, 12 October 2020

Hour: 07.17 WIB (in Indonesia)

_________________________

∛512

= ∛8³

= 8^3 × 1/3

= 8¹

= 8

remember this!

∛x = x^⅓

Answer:

5,184•b•t^6/5

Step-by-step explanation:

Here, we want to multiply the expressions

According to indices law, if we have same bases, we add up the exponents

Thus, we have that;

8 *8b^(2/3+5/3) * 9 * 9 * t^(3/5+3/5)

= 64 * b * 81 * t^6/5

= 5,184bt^6/5

Answer:

step 2

Step-by-step explanation:

she multiplies by 2 instead of finding the square.

Answer:

d = 4.2

Step-by-step explanation:

-5.5 (d - 2) = -12.1

-5.5d + 11 = -12.1

-11               -11

-5.5d/-5.5 = -23.1/-5.5

d = 4.2

Answer:

5 miles

Step-by-step explanation:

The Pythagoras theorem : a² + b² = c²

where a = length = 4

b = base= 3

c = hypotenuse

4² + 3²

16 + 9 = 25

√25 = 5

Answer:

51

Step-by-step explanation:

28 + 23 = 51

Answer:

51 grapes

Step-by-step explanation:

To figure this out, we need to add both amounts of grapes together. We need to add 28 and 23.

  1

  28  Add 8+3, which is 11. So, add a one in the tens place.

+ 23  2+2+1=5, so put that in the tens place.

  51

Hope this helps!! Have a nice day ^^

Answer:

Draw a line segment, say 5 cm long.

Below it draw a line segment 10 cm long, or whatever is twice the length!

Hope that helps!

Step-by-step explanation:

Answer:

6/38, 9/38 are two

Multiply by 2 and 3 DONT multiply the denominators when multiplying.