I need help with this question

Answer:

2.44444

but rounded to 2.4 (tens place)

Step-by-step explanation:

hope this helps!:)

Answer:

for the radius, the cloest i could get was 6.77. therefore the diametre would be double meaning its would be 13.54

so sorry if this is incorrect!

Answer: 6.8 and 13.6

Step-by-step explanation: , so cool am I right, we will be solving this problem on brainly. So first we do 144/3.14 and you get something I think then you do the square root of that and you find the answer of the radius, then you double that and find the diameter.

BRO WHAT IS GETTING TAGGED

Answer:

EG = 44

Step-by-step explanation:

EG, the whole thing, is 10x - 16. It says that at the top of the image. But also, under the segment, we can put together two small pieces, EF and FG. So, the whole thing could also be 4x + 20.

The two expressions both describe EG. They are equal to each other. Write an equation.

10x - 16 = 4x + 20

subtract 4x

6x - 16 = 20

add 16

6x = 36

divide by 6

x = 6

They are asking for EG. Use either expression.

EG = 4x + 20

= 4(6) + 20

= 24 + 20

= 44

or,

EG = 10x - 16

= 10(6) - 16

= 60 - 16

= 44

Actually, its a neat check to do both ways bc it should come out the same.

EG = 44

Therefore , the solution of the given problem of standard deviation comes out to be 126 students made up West County's sample.

Variance is a measure of difference used in statistics. The average difference between the data and the mean is calculated using the magnification of that figure. By comparing each figure to the mean, it incorporates those data points into its calculations, unlike other quantifiable variables. Variations may result from internal or external factors and may include unintentional errors, inflated expectations, and changing economic or commercial circumstances.

Here,

We can apply the following method to determine the sample mean's margin of error:

Error margin is calculated as follows: z * (standard deviation / sqrt(sample size))

where z is the z-score necessary to achieve the required level of confidence (for a two-tailed test, a 95% level of confidence corresponds to a z-score of 1.96).

To determine the sample number, we can rearrange this formula as follows:

=> sample size =  (z * standard deviation / error margin)2.

Inputting the numbers provided yields:

sample amount = (1.96 * 12/1.9)2.

126 samples were used.

126 students made up West County's sample, to the closest whole number.

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Answer:

The sum of 25 and 16 is 41.

Step-by-step explanation:

The sum of two numbers, 25 and 16, you can break apart the addends and add them separately to simplify the process. Here's how you can do it:

Break apart the numbers into their place values: For 25, you have 20 and 5, and for 16, you have 10 and 6. This step helps you work with the place values individually.

Add the tens place: In this case, you have 20 (from 25) and 10 (from 16). Adding them gives you 30.

Add the ones place: Now you add the ones place, which is 5 (from 25) and 6 (from 16). Adding them gives you 11.

Combine the sum of the tens place and the sum of the ones place: Take the sum of 30 (from step 2) and 11 (from step 3). Adding them together gives you 41.

So, the sun is 41.

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Answer:

\(\displaystyle (f\cdot g)(1) = 0\)

Step-by-step explanation:

We are given the two functions:

\(f(x)=x^2-1\text{ and } g(x)=\sqrt x\)

And we want to find:

\((f\cdot g)(1)\)

Recall that this is equivalent to:

\((f\cdot g)(1) =f(1)\cdot g(1)\)

Evaluate each function individually:

\(\displaystyle \begin{aligned} f(1) & = (1)^2 - 1 \\ \\ & = 1 - 1 \\ \\ & = 0 \end{aligned}\)

And:

\(\displaystyle \begin{aligned} g(1) & = \sqrt{(1)} \\ \\ & = 1 \end{aligned}\)

Hence substitute and evaluate:

\(\displaystyle \begin{aligned} (f\cdot g)(1) & = f(1) \cdot g(1) \\ \\ & = (0) \cdot (1) \\ \\ & = 0\end{aligned}\)

In conclusion:

\(\displaystyle (f\cdot g)(1) = 0\)

Answer:

Step-by-step explanation:

Answer:

\( \frac{5}{10} \times \frac{2}{1} = \frac{10}{10} = 1\)

\( \frac{1}{10} \times \frac{8}{3} = \frac{8}{30} = \frac{4}{15} \)

\( \frac{2}{6} \times \frac{12}{6} = \frac{24}{36} = \frac{2}{3} \)

\( \frac{1}{4} \times \frac{1}{3} = \frac{1}{12} \)

\( \frac{1}{5} \times \frac{1}{1} = \frac{1}{5} \)

Answer:

72 of riding the bike and 96 of jogging

Step-by-step explanation:

basically you need to do 6 x 12 and 8 x 12 because it is in two weeks so you divide 24 by 2 and get 12 then multiply 8 x 12 and then 6 x 12

To determine the composition of transformations that maps figure efgh to figure efgh, we need to first identify the transformations involved.

A transformation is a change in position, size, or shape of a figure. In this case, we can see that figure efgh has not changed in size or shape, so the transformation must involve a change in position.

One possible transformation that could be involved is a translation, which involves moving the figure along a straight line without changing its size or shape. Another possible transformation is a rotation, which involves turning the figure around a fixed point.

To find the composition of transformations that maps figure efgh to itself, we need to experiment with different combinations of translations and rotations until we find one that works. For example, we could first rotate the figure 90 degrees clockwise around its center, and then translate it 2 units to the right and 3 units up. This composition of transformations would move figure efgh to a new position, but still maintain its size and shape.

Alternatively, we could first translate the figure 2 units to the right and 3 units up, and then rotate it 90 degrees counterclockwise around its center. This would also result in a new position for the figure, but with the same size and shape as the original.

In conclusion, there are multiple compositions of transformations that could map figure efgh to itself, including combinations of translations and rotations. It is important to experiment with different options and test them to ensure that they maintain the size and shape of the figure.

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Answer:

George will be right by the rule of BODMAS

Step-by-step explanation:

If the students use BODMAS rule, division comes before addition

original price is $240

Answer:

$240

Step-by-step explanation:

.75*x=180

This equation is setup so we can find the value of the original price, since 25% is deducted, you can multiply x by 75% and set it equal to 180 since that is the resulting discounted price.

Answer:

70 miles per hour and 96 kilometers per hour

Cheetahs can go from 0 to 60 miles per hour in just 3.4 seconds and reach a top speed of 70 miles per hour. While they are the fastest land animal in the world, they can only maintain their speed for only 20 to 30 seconds.

Step-by-step explanation:

Please tell me if its wrong then ill change it ^-^ if i can find the right answer fir you!

but if it is right i hope it helps!

Therefore, we do not have sufficient evidence to support the executive's claim that the true proportion of readers who own the particular make of car is different from the reported proportion of 43% at the 0.10 level of significance.

To determine whether there is sufficient evidence to support the executive's claim that the percentage of readers who own a particular make of car is different from the reported percentage of 43%, we need to conduct a hypothesis test.

The null hypothesis H0 is that there is no difference between the true proportion of readers who own the particular make of car and the reported proportion of 43%:

H0: p = p0

The alternative hypothesis Ha is that the true proportion of readers who own the particular make of car is different from the reported proportion:

Ha: p ≠ p0

We can use a z-test for proportions to test this hypothesis, since the sample size is sufficiently large and the sampling distribution of the sample proportion can be approximated by a normal distribution.

test statistic is calculated as:

z = (x/n - p0) / √(p0*(1-p0)/n)

Substituting the values from the problem statement, we get:

z = (0.38 - 0.43) / √(0.43*(1-0.43)/200)

= -1.51

At the 0.10 level of significance, the critical values for a two-tailed test are ±1.64. Since our calculated z-value of -1.51 is not in the rejection region, we fail to reject the null hypothesis.

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Answer:

No, you didn't

Step-by-step explanation:

20% of $1200 is:

Since you saved $200 and its less than $240 you didn't reach your goal

Hi there!

No:

200 is only 6 parts of 1200 together which means that it can’t be 20% of 1200.

If it was 20% of 1200, it would then be 240 since 240·5=1200...

What this means:

No, did not reach the goal since 20% of 1,200 is 240 and 200 is only 16.67% of $1,200.

On rotation and reflection of the triangle the final points obtained are (11, -13), (5, -10), and (8, -4).

What is rotation?

The circular movement of an object about a centre is referred to as rotation. Different forms can be rotated by an angle about their central point. A rotation is a map in mathematics. The rotation group of a particular space refers to all rotations around a fixed point that form a group beneath a structure.

The coordinate points for the triangle FGH is given as -

F (-13, 11), G (-10, 5), and H (-4, 8).

To rotate the rectangle by 270 degrees counter clockwise, we need to use the formula given.

The formula for rotation of points at 270° in counter clockwise direction is

(x, y) → (y, -x)

Apply this formula on the coordinate points -

The first point will be -

F (-13, 11) → F' (11, 13)

The second point will be -

G (-10, 5) → G' (5, 10)

The third point will be -

H (-4, 8) → H' (8, 4)

To reflect the triangle across the x-axis, we need to use the formula given.

The formula for reflection of points across x-axis is -

(x, y) → (x, -y)

Apply this formula on the coordinate points -

The first point will be -

F' (11, 13)  → F'' (11, -13)

The second point will be -

G' (5, 10) → G'' (5, -10)

The third point will be -

H' (8, 4) → H'' (8, -4)

Therefore, the rotated and reflected triangle contains the points (11, -13), (5, -10), and (8, -4).

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Area of the composite figure will be 52.5 cm².

Given composite figure is divided into two parts (1) triangle ABC (2) Rectangle DEFG

Area of ΔABC = \(\frac{1}{2}(AB)(BC)\)

                        = \(\frac{1}{2}(5)[8-(1+2)]\)

                        = \(\frac{1}{2}(5)(5)\)

                        = 12.5 cm²

Area of rectangle DEFG = Length × Width

                                        = 8 × 5

                                        = 40 cm²

Area of the composite figure = Area of triangle ABC + Area of DEFG

                                                = 12.5 + 40

                                                = 52.5 cm²

       Therefore, area of the composite figure will be 52.5 cm².

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Trapezoid is the quadrilateral with only one pair of opposite parallel sides.

A quadrilateral is a closed shape and a type of polygon that has four sides, four vertices and four angles.

Given that, each of the quadrilaterals noted below has two pairs of parallel sides as one of its properties.

Trapezoid is a quadrilateral having base angles equal and one pair of opposite sides are parallel.

Hence, the correct option is Trapezoid.

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Reflection of point 1 over X axis is (-4, -2)

Reflection of point 2 over Y axis is (2, 3)

Reflection of point 3 over x = 1 is (2, 1)

Reflection of point 4 over y = x is  (2, -1)

What is Reflection of a point?

A reflection point occurs when a figure is constructed around a single point known as the point of reflection or center of the figure. For every point in the figure, another point is found directly opposite to it on the other side.

According to the given question:

1. Reflection of point 1 over X axis (x, -y) ⇔ (x, y)

 ∴ Reflection of (-4, 2) over X axis is (-4, -2)

2. Reflection of point 2 over Y axis (x, y) ⇔ (-x, y)

 ∴ Reflection of (-2, 3) over Y axis is (2, 3)

3. Reflection of point 3 over x = 1

 ∴ Reflection of (-2, 1) over x = 1 axis is (2, 1)

4. Reflection of point 4 over y = x is  (x, y) ⇔ (y, x)

 ∴ Reflection of (-1, 2) over X axis is (2, -1)

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Answer:

Name:- Trinomial

Degree:- 5 [ the highest power of x is 5 ]

hope it is helpful to you

Answer:

funny

Step-by-step explanation:

funny

The distance (d) that Aidan traveled is 1500 meters.

To find the distance Aidan walked, we need to consider the total distance he covered during the entire journey.

First, Aidan walked from home to his friend's house, covering a distance of 900 meters in 15 minutes. We can calculate his speed using the formula: Speed = Distance / Time. Therefore, Aidan's speed during this leg of the journey is 900 meters / 15 minutes = 60 meters per minute.

After reaching his friend's house, Aidan stayed for 30 minutes. This period of time does not contribute to the distance he walks, as he remains stationary.

Finally, Aidan walks back home in 10 minutes. Using the speed calculated earlier (60 meters per minute), we can determine the distance covered: Distance = Speed * Time = 60 meters/minute * 10 minutes = 600 meters.

Therefore, the total distance Aidan walked is 900 meters + 600 meters = 1500 meters.

Hence, the distance (d) that Aidan traveled is 1500 meters.

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Step-by-step explanation:

(4,-30) i am not 100% sure about it.

Answer:

Step-by-step explanation:

i think it is c

Answer:

A

Step-by-step explanation:

So let's look at each and determine whether they're true or not.

A. It's vertex is at the origin:

   This is true! The reason for this is because you can express a quadratic in vertex form as such: \(f(x)=a(x-h)+k\) where (h, k) is the vertex. If you remember the parent function is simply: \(f(x)=x^2\) which we can express as: \(f(x) = (x-0)+0\) meaning the vertex is at (0, 0). This also intuitively makes sense, the x^2 will only output positive values for real numbers, so when x<0, f(x) is still going to be positive because it's squaring the negative, so that means when you go from -5 to -4, even though you increased x by 1, the f(x) decreases by 1, since it's squaring the value to get a positive value. The lowest value this can output is 0 because 0^2 = 0. This means you vertex is at the origin.

B. It is not a function:

   So the quadratic parent function only outputs 1 value for each input, although it isn't a one-to-one function, meaning that each output isn't unique, but each input still only outputs 1 output, which makes this a function

C. It is not a parabola:

   parabolas are expressed as quadratic equations, so this is false.

D. It is in quadrants ||| and IV:

   This is not true since the parent function opens upwards and has a vertex at (0, 0) so it will only be in quadrant I and II. I'll provide a diagram showing this.

Note that the system of graphs has two y-intersects hence the two solutions. Note tht in the graph there ar etwo parabolas.

A y-intercept, also known as a vertical intercept, is the location where the graph of a function or relation meets the coordinate system's y-axis. This is done in analytic geometry using the usual convention that the horizontal axis represents the variable x and the vertical axis the variable y. These points fulfill x = 0 because of this.

Replace x in the equation with 0 and then solve for y, keeping in mind that the y-intercept always has an associated x-value of 0. Finding the value of y at x=0 on a graph will reveal the y-intercept. The graph's intersection with the y-axis occurs at this location.

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The volume of the solid with base x^2 + y^2 = 1 and perpendicular cross sections that are isoceles right triangles with leg on the xy-plane is 4/3 cubic units.

To find the volume of the solid, we need to integrate the area of each cross section perpendicular to the x-axis over the interval of x that makes up the base of the solid. Since the cross sections are isoceles right triangles with leg on the xy-plane, we know that the height of each cross section is equal to the length of the leg on the xy-plane, which is given by 2√(1-x^2).

So, the area of each cross section is (1/2) * base * height, where the base is also equal to 2√(1-x^2). Therefore, the volume of the solid can be calculated as follows:

V = ∫[a,b] (1/2) * base * height dx

V = ∫[-1,1] (1/2) * 2√(1-x^2) * 2√(1-x^2) dx

V = ∫[-1,1] (1-x^2) dx

V = [x - (1/3)x^3]_[-1,1]

V = 4/3

Therefore, the volume of the solid is 4/3 cubic units.

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Answer:

The 4th option

Step-by-step explanation:

Mark me as brainliest please

Answer:

A.5,683.0000

B. 1,289,293.0000

C.3,567,920.0000

Step-by-step explanation:

Answer:

children is 48 and adults is 8.25 and children is 90

Step-by-step explanation: