help me................​

Answer:

The first option

Step-by-step explanation:

just took the quiz and it was correct

Answer:

0.35x - 15.75 = 0

Step-by-step explanation:

took the test

Answer:

No

Step-by-step explanation:

I don't think it is proportional

Here it is not proportional.

What is proportional?

Proportional relationships are relationships between two variables where their ratios are equivalent.

Another way to think about them is that, in a proportional relationship, one variable is always a constant value time the other.

Here given that,

\(y=-\frac{5}{9x}\)

Here it is not proportional.

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According to the properties of the standard normal distribution, approximately 99.7% of the values lie within three standard deviations of the mean. Therefore, the answer is 99.7%.

To determine the percentage of videos on the streaming site that are between 264 and 489 seconds, we need to calculate the area under the normal curve within that range. Since the distribution is approximately normal with a mean of 264 seconds and a standard deviation of 75 seconds, we can use the properties of the standard normal distribution to find the desired percentage.

First, we need to convert the values 264 and 489 to z-scores, which represent the number of standard deviations a particular value is away from the mean. The z-score formula is given by:

z = (x - μ) / σ

where x is the value, μ is the mean, and σ is the standard deviation. Plugging in the values, we get:

z1 = (264 - 264) / 75 = 0

z2 = (489 - 264) / 75 = 3

Next, we can use a standard normal distribution table or a calculator to find the area under the curve between z = 0 and z = 3. The area represents the percentage of videos falling within that range. The answer is 99.7% .

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"The box plot tells us about the lower limit, first quartile, median, third quartile, and upper limit.

Step-by-step explanation:

Box plot:

It displays the five-number summary of a set of data. The five-number summary is the lower limit, first quartile, median, third quartile, and upper limit. We draw a box in a box plot from the first quartile to the third quartile. A vertical line goes through the box which represents the median. Anything that lies beyond the upper limit or the lower limit is know as an outlier.

From the information given, we can say that:

The left-most point on the plot is 20 and the right-most point is 95 which means 20 and 95 are the lower and upper limit respectively. The box is labeled 35 on the left edge and 60 on the right edge which means 35 is the first quartile and 60 is the the third quartile. A vertical line is drawn inside the rectangle at the point 55 which means 55 is the median of given data. We cannot know about the mean of data with the given information."

(this is kind of an answer, I hope it's helpful)

The other prson is right, give them brainliest!

For the triangle m/1+m/2+m/3 = 180° is condition satisfices so option B is correct

What is triangle?

A triangle is a two-dimensional shape with three straight sides and three angles. It is one of the basic shapes in geometry, and is often used in mathematics and other fields to represent or analyze a wide range of concepts. The three sides of a triangle may be of different lengths, or they may be equal (in which case the triangle is called an equilateral triangle). The angles of a triangle may also be of different measures, and are often denoted by Greek letters such as alpha (α), beta (β), and gamma (γ). Triangles are used in many applications, such as to calculate distances, areas, and angles in real-world scenarios, or to analyze patterns and structures in abstract mathematical contexts.

According to the question:
The equation that shows the relationship between the angles in the triangle is:

m/1+m/2+m/3 = 180°

This equation states that the sum of the measures of the three angles in a triangle is equal to 180 degrees. The variables m/1, m/2, and m/3 represent the measures of the three angles in the triangle, and the sum of these measures is equal to 180 degrees.
So option B is correct .

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The loss on selling 50 shares of stock would be 87.50.

To calculate the loss on selling 50 shares of stock originally bought at

\(13\frac{3}{4}\) and sold at 12, we need to determine the difference between the purchase price and the selling price, and then multiply it by the number of shares sold.

First, let's convert the purchase price from a mixed fraction to a decimal. \(13\frac{3}{4}\) can be expressed as 13.75.

Next, we calculate the difference between the purchase price and the selling price:

\(13.75 - 12 = 1.75.\)

Finally, we multiply the difference by the number of shares sold:

\(1.75 \times50 = 87.50.\)

Therefore, the loss on selling 50 shares of stock would be 87.50.

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This questions have been solved in three steps showing the sequence of transformation that maps ∆ABC to ∆A''B''C''.

As per the question statement, we are supposed to describe in words a sequence of transformations that maps ∆ABC to ∆A''B''C''.

Before solving the question, we need to know about the coordinates of vertices of ∆ABC , which is as follows:  

\(A(-5,3)\) , \(B(-2,3)\) and \(C(-4,1)\)

Now coordinates of vertices of ∆A''B''C'' are as follows:

\(A"(8,-2)\) , \(B"(5,-2)\) and  \(C"(7,0)\)

Step 1: Shifting the ∆ABC four units vertically down so that the edge \(AB\) lies on the \(x-axis\)

Step 2: Shifting the ∆ABC ten units in horizontally right direction.

Step 3: Inverting the ∆ABC by \(180\)° on the same axis

Step 4: Rotating the ∆ABC by  \(180\)° hence the new  ∆A''B''C'' is mapped.

This question is a classic example to practice the coordinate geometry.

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Answer:

7.82 for each person

Step-by-step explanation:

31.28/4=7.82

1) Number of participants whose headache remained is: 62

2) The probability of randomly selecting an individual whose headache remained is: 0.4133

3) The probability of randomly selecting an individual whose headache remained and took a placebo is: 0.2933

From the table, we have the parameters as:

Number of participants that took medicine and headache went away = 120

Number of participants that took placebo and headache went away = 68

Number of participants that took and headache remained = 18

Number of participants that took placebo and headache remained = 44

1) Number of participants whose headache remained = 18 + 44 = 62

2) The probability of randomly selecting an individual whose headache remained is:

62/(62 + 120 + 68)

= 62/150

= 0.4133

3) The probability of randomly selecting an individual whose headache remained and took a placebo is:

44/150 = 0.2933

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Answer:

i think the answer is 18

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

3(9−(4+2)/2)

=(3)(9+−3)

=(3)(9)+(3)(−3)

=27−9

=18

Have a beautiful day!

Answer:

The probability is 0.1944

Step-by-step explanation:

Since we are rolling two dice, the number of possible results is 36

for us to get a sum of seven, these are the possible results;

1 and 6

6 and 1

2 and 5

5 and 2

3 and 4

4 and 3

The probability of rolling a sum of 7 is 6/36

For a sum of 12, we only have one possible result and that is 6,6

So the probability here is 1/36

If we have or in probability, we add up the individual probabilities

So, our probability here will be;

1/36 + 6/36

= 7/36 = 0.1944

Answer:

\(\frac{22x^{2}}{3y}\)

Step-by-step explanation:

\(\frac{(77x^{9})(10y^{4}) }{(7x^{7})(15y^{5}) }\)

\(\frac{(11x^{2})(2)}{3y}\)

The probability that the average length of a randomly selected bundle of steel rods is greater than 168.58 cm is 0.7486

First, we need to calculate the z-score for the sample mean:

z = (x - μ) / (σ / √n)

z = (168.58 - 169) / (2.2 / √10)

z = -0.67

Next, we need to find the probability that a randomly selected bundle of steel rods will have a mean length greater than 168.58 cm. This is equivalent to finding the area under the standard normal distribution curve to the right of z = -0.67.

Using a standard normal distribution table or calculator, we find that the probability is 0.7486.

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If two figures can be mapped onto one another or if all pairings of angles and side lengths are congruent, the figures are said to be congruent.

A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes. Triangle ABC is the designation for a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.

If two triangles are the same size and shape, they are said to be congruent. To establish that two triangles are congruent, not all six matching elements of either triangle must be located. There are five requirements for two triangles to be congruent, according to studies and trials. The congruence properties are SSS, SAS, ASA, AAS, and RHS.

here, we have,

Both triangles are said to be congruent if the three angles and three sides of one triangle match the corresponding angles and sides of the other triangle.

In Δ PQR and ΔXYZ, as shown in figure,

we can identify that PQ = XY, PR = XZ,

and QR = YZ

and ∠P = ∠X,

∠Q = ∠Y and ∠R = ∠Z.

Then we can say that Δ PQR ≅ ΔXYZ.

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Answer: 16 pounds of grain.

Step-by-step explanation: 36 divided by 9 is 4, which means we have to multiply bin C by how much bin J was multiplied by, which is 4, so 4x4 is 16.

(let me know if you would like me to explain more on this)

The area of a square inscribed in a circle is 25, then the area of the circle is 25π/2 or approximately 39.27 square units.

To solve this problem, we can use the relationship between the area of a square inscribed in a circle and the area of the circle itself.

When a square is inscribed in a circle, the diagonal of the square is equal to the diameter of the circle. Let's assume that the side length of the square is 's' and the radius of the circle is 'r'.

We are given that the area of the square is 25, so we can find the side length of the square:

Area of square = \(s^2 = 25\)

Taking the square root of both sides, we get:

s = √25 = 5

Since the diagonal of the square is equal to the diameter of the circle, we can find the diameter of the circle:

Diagonal = Diameter = s√2 = 5√2

The radius of the circle is half the diameter, so:

Radius = 5√2 / 2 = (5√2)/2

Now, we can calculate the area of the circle using the formula:

Area of circle = \(\pi r^2\)

Substituting the value of the radius, we get:

Area of circle = π((5√2)/\(2)^2\) = π(25/2) = 25π/2

Therefore, the area of the circle is 25π/2 or approximately 39.27 square units.

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Step-by-step explanation:

x + (4x - 20) = 180

5x - 20 = 180

5x = 180 + 20

5x = 200

x = 200/5

x = 40°

Option → D

Answer:

\(x = 40\)

Answer D is correct

Step-by-step explanation:

Angles in a straight line is added up to 180°

Therefore,

\(x + 4x - 20 = 180 \\ 5x - 20 = 180 \\ 5x = 180 + 20 \\ 5x = 200 \\ \frac{5x}{5} = \frac{200}{5} \\ x = 40 \degree\)

Hope this helps you.

Let me know if you have any other questions:-):-)

Step-by-step explanation:

Hey there!

Given;

Radius of a circle (r) = 7cm

Now;

We know that;

Area of circle (a) = π*(r^2)

= 3.14*(7^2)

= 3.14*49

= 153.86 cm^2

Therefore, the area of a circle is 153.86 cm^2.

Hope it helps...

Answer:

there is not enough information because x and 55 are parrallel, not congruent.

Step-by-step explanation:

Answer:  A) £7.49

               B) £2.25

Step-by-step explanation:

Step 1:

Let the cost of a football be \(f\)and the cost of a tennis ball be \(t\).

Step 2:

Write the 2 equations we have from the given information:

\(2f + 3t = 21.73\) \( \textsf{(from the cost of 2 footballs and 3 tennis balls)} \)

\(5f + 7t = 53.20\) \( \textsf{(from the cost of 5 footballs and 7 tennis balls)} \)

Step 3:

Solve for one variable in one of the equations. For example, we can solve for \(f\)in the first equation:

Step 4:

Substitute this expression for \(f\) into the second equation and solve for \(t\):

So, the cost of a tennis ball is £2.25.

Step 5:

Substitute this value of \(t\) into the expression for \(f\) and solve for \(f\):

So, the cost of a football is £7.49

Step 6:

Therefore, the cost of a football is £7.49 and the cost of a tennis ball is £2.25.

Answer:

\( - \frac{1}{6} \)

Step-by-step explanation:

Using the slope formula:

\( \frac{ - 1 - 0}{0 - ( - 6)} = - \frac{1}{6} \)

The value of the angle x is 30 degrees

To determine the value of the variable x, we need to know the triangle sum theorem.

The triangle sum theorem is a theorem in mathematics stating that the sum total of the interior angles in a triangle is equivalent to 180 degrees.

We should also note that angle at right angle is 90 degrees

Then, we have the angles written as;

90 degrees

2x degrees

x degrees

Equate the angles , we have;

2x + x + 90 = 180

collect the like terms, we have;

2x + x = 180 - 90

add or subtract the like terms, we have;

3x = 90

divide by the coefficient

x = 30

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Figure out the amount of pounds in each tomato. Then multiply 2 by the number of pounds, then multiply by the number of tomatoes. Hope it helped <3  

Answer:

D, g(x) = 1/4 x^2

Step-by-step explanation:

You can try plugging in the x and y values into each equation. The answer to this would be D, where if you plug in 2 as the x value, you get 1/4 * 4 which equals 1. This also makes sense because 2x would have a narrower curve while 1/2x would have a wider curve.

Answer: B.792

Step-by-step explanation:

Answer:

Option D.   \(g(x)=5(0.8)^{x}+2\)

Step-by-step explanation:

Main concepts

Concept 1: identifying horizontal asymptote

Concept 2: assuring decreasing exponential function

Concept 1. identifying horizontal asymptote

Any exponential function of the form \(y=a*b^x\) has a horizontal asymptote on the x-axis.  A constant (positive or negative) added to the end of the exponential expression will shift the graph of the exponential function up (if positive) or down (if negative) the number of units equal to the magnitude of the number.  Since the original function f(x) has a "+2" at the end, it has been shifted up 2 units.  Thus, we can eliminate answers A and C from feasible answers since they each shift the exponential function up 3 units, not 2.

Concept 2. assuring decreasing exponential function

Exponential functions of the form \(y=a*b^x\) increase or decrease based on the value of "b".

Observe that the graph of the function f(x) is decreasing, and the value of b=0.5.

To ensure that g(x) also decreases, the b-value must be between 0 and 1, which eliminates option B.

Option D is the correct answer because the value of "b" is between 0 and 1 (making the graph of the function a decreasing exponential), and the number added at the end is "+2", causing the horizontal asymptote to be at a height of positive 2.

Answer:

Second option

Step-by-step explanation:

In order to find the answer to this question you have to divide the numerator into the denominator remembering that whole numbers have a secret decimal point to the right of itself.

\(\frac{3}{18}\)

\(\frac{3}{18} =3\div18\)

\(3\div18=0.16666666666\)

= 0.16666666666  or 0.16 repeating

Hope this helps.

Answer:

Step-by-step explanation:

(2.4 * 12) + [2.4 * (18-12)] : 2 =

28.8 + [2.4 * 6] : 2 =

28.8 + 14.4 : 2 =

28.8 + 7.2

36cm²