Which statement BEST describes V125? A) between 11 and 12 B) between 1 and 13 between 13 and 14 D) between 14 and 15​

Therefore, the science class had a higher average after completing Test 4.

Part A: The class’ math test average after completing Test 2 is 85%.

For this part, we’ll first calculate the sum of the test scores and then divide it by the total number of tests.

\(86 + 84 = 170170/2 = 85\)

Part B: The class’ science test average after completing Test 2 is 87%.We’ll follow the same process as we did in part A to find the sum and then divide by the number of tests.\(86 + 88 = 174174/2 = 87\)

Part C: Science class had a higher average after completing Test 4.

When solving this problem, we’ll first have to find out the scores of the test that hasn’t been accounted for. We can do this by using the means of the two tests that have already been given, and then calculating what the score must be to reach a total of 270 (90% on the third test).Here’s how we can calculate that:\(85 + 87 + x = 270x = 98\)

With that calculation, we now know that the score for test 3 in math class is 98%, while the score for test 3 in science class is 94%.To calculate the overall averages for both classes, we’ll simply add up the four test scores and then divide by four. Here’s how we can do that:Math: \(85 + 84 + 82 + 98 = 349\)

Science:\(87 + 86 + 88 + 94 = 355\)

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Answer:

\(y=7\)

Step-by-step explanation:

\(5+\frac{1}{3}(9y-12)=\frac{5}{6}(y+18)+\frac{1}{6}y\)

\(5+(3y-4)=(\frac{5}{6}y+15)+\frac{1}{6}y\)

\(5+3y-4=\frac{5}{6}y+15+\frac{1}{6}y\)

\(1+3y=y+15\)

\(3y=y+14\)

\(2y=14\)

\(y=7\)

Answer:

0, 2/5, 1/6,-3/4,-7/10

Step-by-step explanation:

this is just what i think i didint understand the no spaces or no commas or negatives thing but here you go i hope its right

Answer:

$21

Step-by-step explanation:

30% = .3

multiply 30 by .3 and this equals 9 so you just subtract 9 from 30 because that is how much it went down from the sale. when you subtract 9 from 30 you get 21

The required measure of the angle x is given as 117.38°.

A triangle is given with a measure of.
a = 50, b = 55 and c = 90ft

The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°

Here,
Apply cosine formula,
c² = a² + b² -2abcosx
Substitute the value in the above expression,
90² = 50² + 55² - 2×50×55×cosx
cosx = -0.46
x = cos⁻¹[-0.46]
x = 117.38°

Hence, as a result, the measure of the angle x is 117.38°.

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The value of the line integral ∮c x dx + y dy / \((x^2 + y^2)\), where c is any Jordan curve whose interior does not contain the origin, traversed counterclockwise, is 0.

To evaluate the line integral ∮c x dx + y dy / \((x^2 + y^2)\), where c is any Jordan curve whose interior does not contain the origin, traversed counterclockwise, we can apply Green's theorem.

Green's theorem states that for a vector field F = P(x, y) i + Q(x, y) j, and a simple closed curve C with positively oriented boundary, the line integral of F along C is equal to the double integral of the curl of F over the region enclosed by C.

In this case, the vector field F = x i + y j, and the line integral becomes ∮c x dx + y dy / \((x^2 + y^2)\) = ∬R curl(F) dA.

The curl of F is given by curl(F) = (∂Q/∂x - ∂P/∂y) k = (1 - 1) k = 0.

Since the curl of F is zero, the line integral becomes ∬R 0 dA = 0.

Therefore, the value of the line integral ∮c x dx + y dy / \((x^2 + y^2)\), where c is any Jordan curve whose interior does not contain the origin, traversed counterclockwise, is 0.

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The given mathematical expression is evaluated for the input values (2, 4). The result of the expression is calculated using various operations such as addition, multiplication, square root, natural logarithm, minimum, maximum, and function composition.

The expression f(x1, x2) involves several mathematical operations. Let's evaluate each part of the expression step by step:

1. The first term is 421 + 222, which equals 643.

2. The second term is 3x² + 213. Plugging in x1 = 2 and x2 = 4, we get 3(2)² + 213 = 3(4) + 213 = 12 + 213 = 225.

3. The third term is 5x11². Substituting x1 = 2 and x2 = 4, we have 5(2)(11)² = 5(2)(121) = 1210.

4. The fourth term is (√₁+√₂)². Replacing x1 = 2 and x2 = 4, we obtain (√2 + √4)² = (1 + 2)² = 3² = 9.

5. The fifth term is 10ln(₁). Plugging in x1 = 2, we have 10ln(2) = 10 * 0.69314718 ≈ 6.9314718.

6. The sixth term is (x₁+x₂)(x² + x3). Substituting x1 = 2 and x2 = 4, we get (2 + 4)(2² + 4³) = 6(4 + 64) = 6(68) = 408.

7. The seventh term is min(3r1, 10√2). As we don't have the value of r1, we cannot determine the minimum between 3r1 and 10√2.

8. The eighth term is max{5x1,2r2}. Since we don't know the value of r2, we cannot find the maximum between 5x1 and 2r2.

9. Finally, we have MP1(x1, x2), MP2(X1, X2), and TRS(x1, x2), which are not defined or given.

Considering the given expression, the evaluated terms for the input values (2, 4) are as follows:

- 421 + 222 = 643

- 3x² + 213 = 225

- 5x11² = 1210

- (√₁+√₂)² = 9

- 10ln(₁) ≈ 6.9314718

- (x₁+x₂)(x² + x3) = 408

The terms involving min() and max() cannot be calculated without knowing the values of r1 and r2, respectively. Additionally, MP1(x1, x2), MP2(X1, X2), and TRS(x1, x2) are not defined.

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Answer:

The answer is 70 you would add the 8 degrees but them subtract it again

The estimated current total cost for the installed and insulated tank is $12,065.73.

The first step is to calculate the surface area of the tank. The surface area of a cylinder is calculated as follows:

surface_area = 2 * pi * r * h + 2 * pi * r^2

where:

r is the radius of the cylinder

h is the height of the cylinder

In this case, the radius of the cylinder is 1 meter (half of the diameter) and the height of the cylinder is 1 meter. So the surface area of the tank is:

surface_area = 2 * pi * 1 * 1 + 2 * pi * 1^2 = 6.283185307179586

The insulation will add a thickness of 0.05 meters to the surface area of the tank, so the total surface area of the insulated tank is:

surface_area = 6.283185307179586 + 2 * pi * 1 * 0.05 = 6.806032934459293

The cost of the insulation is $40 per square meter and the cost of labor is $95 per square meter, so the total cost of the insulation and labor is:

cost = 6.806032934459293 * (40 + 95) = $1,165.73

The original cost of the tank was $10,900, so the total cost of the insulated tank is:

cost = 10900 + 1165.73 = $12,065.73

Therefore, the estimated current total cost for the installed and insulated tank is $12,065.73.

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Answer:

\(3.84\times10^8\ m\)

Step-by-step explanation:

It is given that,

The average distance between the Earth and the Moon is 384 400 km.

We need to express in in standard form.

1 km = 1000 m

It means,

384400 km = 384400000 km

or

= \(3.84\times10^8\ m\)

Hence, the average distance between the Earth and the Moon is \(3.84\times10^8\ m\).

Answer:

18.98

Step-by-step explanation:

Answer:

I have the same question

Step-by-step explanation:

but instead the bill is 13.72, HELP

Nul(A) = Nul(B) , Col(A) = Col(B) in integer matrices.

Describe matrix using an example?

A matrix is a collection of numbers that have been put in rows and columns to make a rectangular array. The entries of the matrix are the numbers, which are referred to as its elements.

                                 In addition to many other areas of mathematics, matrices have extensive applications in the fields of engineering, physics, economics, and statistics.

The null space of any matrix A consists of all the vectors

 X  such that Ax = 0

And the column space of a matrix A is the span of its column vectors.

Let  A = \(\left[\begin{array}{ccc}1&0&0 \\0&1&0\\0&0&1\end{array}\right]\)

Therefore, Nul(A) = {(0,0,0,w ) w∈ Z }

 Col(A) = span{ (1,0,0), (0,1,0) , (0,0,1) }

By using definition of Null space of matrix and column space of matrix.

 Let B = \(\left[\begin{array}{ccc}1&1&0\\0&1&0\\0&0&1\end{array}\right]\)        

Nul(A) = {(0,0,0,w ) w∈ Z }

 Col(A) = span{ (1,0,0), (0,1,0) , (0,0,1) }

Hence Nul(A) = Nul(B) , Col(A) = Col(B)

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Answer:

1011

Step-by-step explanation:

It's hexadecimal table .

View the attachment

Answer:

1011

Step-by-step explanation:

As the infamous Mister Brainly said, it is a hexadecimal table. There are a couple ways you can view them, some more complicated than others, although I took a simpler approach. You may be able to see that there’s always a one in the same position in the row, except for the first few, as it’s just approaching. You keep that one there for following rows, but move it toward one. Then just copy the movements of the first row, looking at the ones after the opone to the most left. Continue this until you get to the 12th term, or the number it’s equal to (Term in algebraic talk).

Hope This Helped!

The equation of the line with given coordinates in slope intercept form is given by y = 6x.

Use the slope-intercept form of the equation of a line,

y = mx + b,

where m is the slope of the line

And b is the y-intercept.

The slope of the line is equals to,

m = (y₂ - y₁) / (x₂ - x₁)

where (x₁, y₁) and (x₂, y₂) are the coordinates of the two points on the line.

Using the coordinates (-3, -18) and (3, 18), we get,

⇒m = (18 - (-18)) / (3 - (-3))

⇒m = 36 / 6

⇒m = 6

So the slope of the line is 6.

Now we can use the slope-intercept form of the equation of a line .

Substitute in the slope and one of the points, say (-3, -18) to get the y-intercept,

y = mx + b

⇒ -18 = 6(-3) + b

⇒ -18 = -18 + b

⇒ b = 0

So the y-intercept is 0.

Putting it all together, the equation of the line in slope-intercept form is,

y = 6x + 0

⇒ y = 6x

Therefore, the slope intercept form of the line is equal to y = 6x.

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Answer:

area of rectangle 5 is 84.87

area of rectangle 6 is 27.71200

rectangle 7: perimeter is 64.64800 area is 104.96

rectangle 8: area is 32.69 perimeter is 36.15400

Note:

if i got any wrong im deeply sorry but good luck with this

Answer:

2) If the scale factor is 2, draw a line from the centre of enlargement, through each vertex, which is twice as long as the length you measured. If the scale factor is 3, draw lines which are three times as long. If the scale factor is 1/2, draw lines which are 1/2 as long, etc. The centre of enlargement is marked.

Step-by-step explanation:

Answer:

You multiply the dimensions given by the scale factor.

Step-by-step explanation:

ex: if the dimensions are all 5 then u would multiply these dimensions by each scale factor seperately like so, 1.5*5 and then 5*2

Hope this helps!!

The coordinates of (9,4) after the following translation (x, y) (x - 2, y + 1) is (7,5)

What does a coordinate in mathematics mean?

A group of numbers used to express the divisions of two reference axes' positions along the horizontal and vertical axes of a coordinate plane. frequently represented as the union of x-values and y-values (x,y).

Given that

x = x-2

y = y+1

After this we can convert this (9,4) coordinate in the following translation

9-2 = 7

4+1 = 5

Hence now new coordinate after the translation is (7,5)

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The weight that the next measurement has a 10% chance of exceeding is 9.784.

Here we need a weight such that the next weight had a 10% chance of exceeding that weight "w" i.e. we need a w such that

P(X>w)=0.1, Where X denotes the weight of the object. Here X follows Normal(9.78, 0.0031) . Thus,

Z = X-9.78 / 0.0031 follows Normal (0, 1) and

P(X>w) = 0.1

= P((X-9.7)/0.031 > (w-9.78)/0.031)

= 0.1

= 1 - P(Z≤ (w-9.78)/0.031)

= (w-9.78)/0.031

= Φ⁻¹(0.9)

= (w-9.78)/0.031 = 1.28155

= w = 9.784

Hence the weight that the next measurement has a 10% chance of exceeding is 9.784.

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Answer:

A) (2,5)

Step-by-step explanation:

longest side is between points (1,4) and (3,6)

so midpoint is ((1+3)/2), ((4+6)/2), which equals (2, 5)

The proportion of the category of interest for a population is called a proportion.

A proportion is a measure of the relative frequency or occurrence of a particular category within a population. It is calculated by dividing the number of occurrences of the category by the total number of items in the population. A proportion is expressed as a fraction, decimal or percentage.

For instance, if there are 25 people in a room and 5 of them are wearing glasses, then the proportion of people wearing glasses is 5/25 or 0.2 or 20%.

conclusion, the proportion of the category of interest for a population is called a proportion. It is calculated by dividing the number of occurrences of the category by the total number of items in the population. A proportion is a measure of the relative frequency or occurrence of a particular category within a population. It can be expressed as a fraction, decimal or percentage. In order to make informed decisions based on data, it is essential to understand and interpret proportions correctly. Proportions are used in various fields such as statistics, research, marketing, and public policy to study, analyze, and report data.

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Answer:

Yes

Step-by-step explanation:

Yes it is a function.

Answer:

y= 40 degrees

x=  35 degrees

Step-by-step explanation:

2x=40

the angles are vertical  

2x + 2x + 40 = 180 degrees then solve equation

4x + 40 = 180

      -40 = -40 (subtract)

4x = 140

/4x = /4 (divide 4 on both sides

leaving you with X = 35

X= 35 degrees

Two or more triangles are said to be congruent if they have the same shape and size. When one of the values of a pair of congruent sides or angles is unknown and the other value is known or can be easily obtained

Can u give me brainiest please

Answer:

The angles are 132 degrees

Step-by-step explanation:

The angles are opposite interior angles, meaning their measures are the same.

5x - 18 = 3x + 42

2x = 60

x = 30

3 (30) + 42 = 132 Degrees

Answer: chicken

Step-by-step explanation:

The value of the correlation coefficient (r) can be equal to the value of the coefficient of determination (r2).

detail explain: The correlation coefficient (r) measures the strength and direction of the linear relationship between two variables. On the other hand, the coefficient of determination (r2) measures the proportion of the variance in one variable that can be explained by the variance in the other variable. Both coefficients are used to analyze the relationship between two variables.

The value of the correlation coefficient (r) can range from -1.0 to +1.0, with negative values indicating a negative correlation and positive values indicating a positive correlation. The closer the value of r is to -1.0 or +1.0, the stronger the correlation.

The value of the coefficient of determination (r2) can range from 0 to 1.0, with higher values indicating a stronger relationship between the two variables. Specifically, r2 represents the proportion of the variance in one variable that is explained by the variance in the other variable.

It is possible for the value of the correlation coefficient (r) to be equal to the value of the coefficient of determination (r2). This happens when there is a perfect linear relationship between the two variables. In this case, the correlation coefficient is either -1.0 or +1.0, and the coefficient of determination is 1.0.

In summary, the correlation coefficient (r) and the coefficient of determination (r2) are both used to analyze the relationship between two variables. The value of r can range from -1.0 to +1.0, indicating the strength and direction of the linear relationship. The value of r2 can range from 0 to 1.0, indicating the proportion of the variance in one variable that can be explained by the variance in the other variable. It is possible for r to be equal to r2 in the case of a perfect linear relationship between the two variables. However, this is rare and typically the values of r and r2 will differ.

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Answer:

x° = 35°

Step-by-step explanation:

at 125° to get the opposite angle

180° - 125° = 55°

then,

x° + 90° + 55° = 180°

x° = 180° - 145°

x° = 35°

Answer:

$198.38

Step-by-step explanation:

I took the quiz

Answer:

198

Step-by-step explanation:

Thus, the length of a side of the regular hexagon is 8 centimeters using the Pythagorean theorem.

The key to solving this problem is to realize that the perpendiculars drawn from the interior point to the sides of the hexagon form a right triangle with one leg being the perpendicular and the other leg being a side of the hexagon. We also know that the hexagon is regular, meaning all sides have the same length.

Let's label the length of the side of the hexagon as "x". We can use the Pythagorean theorem to find the length of each perpendicular as follows:

- For the perpendicular that is 4 cm long, we have x^2 = 4^2 + (x/2)^2
- For the perpendicular that is 5 cm long, we have x^2 = 5^2 + (x/2)^2
- For the perpendicular that is 6 cm long, we have x^2 = 6^2 + (x/2)^2
- For the perpendicular that is 8 cm long, we have x^2 = 8^2 + (x/2)^2
- For the perpendicular that is 9 cm long, we have x^2 = 9^2 + (x/2)^2
- For the perpendicular that is 10 cm long, we have x^2 = 10^2 + (x/2)^2

Simplifying each equation and using a bit of algebra, we get:

- 3x^2 = 16^2
- 7x^2 = 25^2
- 12x^2 = 36^2
- 24x^2 = 64^2
- 33x^2 = 81^2
- 40x^2 = 100^2

Solving for x in each equation, we find that x = 8 cm. Therefore, the length of a side of the regular hexagon is 8 centimeters.

In summary, we used the fact that the perpendiculars from an interior point to the sides of a regular hexagon form right triangles to set up equations using the Pythagorean theorem. Solving for the length of a side of the hexagon in each equation, we found that it is 8 cm long.

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