What is f(x)=x2-5 btw that 2 is square

Answer: its E and B

Step-by-step explanation:

2/100 is .02 which is 2%

Answer:

2%= 2/100= 0.02

so correct answer is b and e

Step-by-step explanation:

To find the angle between a line and the x-axis, we need to calculate the slope of the line first. The slope of a line passing through two points (x₁, y₁) and (x₂, y₂) is given by the formula:

m = (y₂ - y₁) / (x₂ - x₁)

Using the points (-2, 2) and (8, 9), we can substitute the values into the formula:

m = (9 - 2) / (8 - (-2))

= 7 / 10

= 0.7

The slope of the line is 0.7. The angle between the line and the x-axis can be found using the inverse tangent (arctan) function. The tangent of an angle is equal to the slope of the line, so we can write:

tan(θ) = 0.7

Taking the inverse tangent of both sides, we find:

θ = arctan(0.7)

Using a calculator, we can evaluate this to be approximately:

θ ≈ 35.87 degrees

Therefore, the angle between the line and the x-axis is approximately 35.87 degrees.

Answer:

Yes, it is possible for a dataset to have more than one mode.

Step-by-step explanation:

In statistics, a mode refers to the value or values that occur most frequently in a dataset. If there are multiple values that have the same highest frequency and occur more frequently than any other value in the dataset, then the dataset is said to have multiple modes.

There are different types of distributions that can exhibit multiple modes. Here are a few examples:

Bimodal Distribution: A bimodal distribution has two distinct modes, meaning it has two peaks or high-frequency regions. This indicates that there are two different groups or subpopulations within the dataset, each with its own characteristic values. For example, if you have a dataset of heights that includes both adults and children, you may observe two modes corresponding to the adult and child heights.

Multimodal Distribution: A multimodal distribution has more than two modes, meaning it has multiple peaks or high-frequency regions. This suggests the presence of multiple subgroups or distinct characteristics within the dataset. For instance, if you have a dataset of exam scores for a class where some students performed well, some performed moderately, and some performed poorly, you might observe three modes corresponding to these groups.

No Mode: It is also possible for a dataset to have no mode, which occurs when no value appears more frequently than others. This can happen in datasets with uniform or random distributions, where all values have equal frequency.

It's important to note that not all datasets will have a mode or multiple modes. Some datasets may have a single mode where one value occurs with the highest frequency, while others may have no discernible mode if the values are evenly distributed or there is no repetitive pattern in the data.In summary, a dataset can have one mode, multiple modes, or no mode depending on the frequency distribution of its values. The presence of multiple modes indicates the existence of distinct groups or subpopulations within the data.

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Answer:

R' (-7, -3)

S' (-7, 3)

T' (-2, -4)

Step-by-step explanation:

Hope it helps ;-)

Answer:hey I’m sry

Step-by-step explanation:

Answer:46ft

Step-by-step explanation:

split the shape into square and triangle

7•6=42

then for the triangle 7-5=2 and 10-6= 4

2•4=8/2=4

42+2=46

Answer:

Step-by-step explanation:

Step 1

Get the Area of the Rectangle.

Area of Rectangle = width x length

Width of the rectangle = 6ft

Length of the rectangle = 7ft

Area of rectangle = 7ft * 6ft = 42 ft^2

Step 2

Get the area of the triangle.

We know the triangle has a base of 2ft because the image shows the top length being 7ft and the bottom (where the triangle begins) is 5ft.

7ft - 5ft = 2ft

Similarly one side is 6ft and the other side where the triangle ends is 10ft. So the height of the triangle = 10ft - 6ft = 4ft

Area of a triangle is (1/2)*base*height

A = (2ft * 4ft)/ 2

The area of the triangle is A = 4 ft^2

The total area is = Area of rectangle + Area of triangle = 42 ft^2 + 4 ft^2 = 46 ft^2

Answer: 454.5

Step-by-step explanation:

-2, 20, -200, 2,000 ==> 4 numbers

Mean: (-2+20+(-200)+2000)/4=

(18-200+2000)/4=

(-182+2000)/4

1818/4=454.5

The rate of change of the cost with respect to the length of the rental is constant at $10 per hour for the fee.

A function in mathematics is a relationship between a set of inputs (the domain) and a set of outputs (the range). Each input is given a different output value. It describes the mapping between the domain's elements and the range's elements.

The rate of change of the cost with respect to the length of the rental can be found by taking the derivative of the function f(x) = 10x + 25. The derivative of this function is simply 10, which represents the hourly charge for renting diving equipment.

Therefore, the rate of change of the cost for the fee with respect to the length of the rental is constant at $10 per hour. This means that for each additional hour of rental, the cost will increase by $10 due to the hourly charge for the diving equipment rental.

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sopa de macaco uma delicia

Answer: The missing side length of the quadrilateral is 13x - 16.

Step-by-step explanation:

We are given that the perimeter (P) of the quadrilateral is 31x - 12.

We are also given 3 of the 4 side lengths of the quadrilateral.

We are asked to find the missing side length of the quadrilateral.

To find the missing side length we should:

Step 1: Add the given sides:

7x + 9 + 13x - 15 + 10 - 2x

After combining like terms you get,

18x + 4

Step 2: Subtract -> Perimeter - total side lengths

(31x - 12) - (18x + 4)

distribute the negative:

31x - 12 - 18x - 4

Combine liker terms:

13x - 16

The missing side length of the quadrilateral is 13x - 16.

Step-by-step explanation:

2^3x^5×3y^2×3

8x^15y^6

I really hope I get it right but "a single" sounds more right

Answer:

a single

Step-by-step explanation:

when one equation is not easily solved for a single variable

Answer:

A: 8/31

B: 5/13

C: The events are dependent because one happening doesn't effect the other happening, sometimes it just happens that it rains and snows on the same day

Step-by-step explanation:

A - A is 8/31 because of the 31 days 8 of them snow (combined from snow and both)

B  - There are 13 days that it rains and on 5 of those days it also snows

When we vary two inputs or decision variables and want to see how the changes in these quantities change a single output.

When we vary two inputs or decision variables and want to see how the changes in these quantities change a single output, the table we use is called the Two-way Table.A two-way table is a table that shows the frequency distribution of categorical data in two different ways. It has two rows and two columns with one categorical variable defining the row and the other defining the column.To display the distribution of one variable along one dimension and the distribution of the other variable along the other dimension, we use a two-way frequency table. It's the same as a contingency table, but it includes frequency counts for each mix of the two variables.A two-way table is used in statistics to show the distribution of data when two different variables are taken into account. It is created to make comparisons between data in a tabular format to highlight correlations or relationships between the variables. Hence, the correct answer is the option d. Two-way Table.

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Answer:

The answer is 80

35x4=140

220-140=80

Step-by-step explanation:

Answer:

(18 , - 10)

Step-by-step explanation:

5x + 4y = 50 .... (1)

x + 2y = - 2 ... (2)

Solve (2) for "x"

x = - 2y - 2 .... (3)

(3) ----> (1)

5(- 2y - 2) + 4y = 50 ⇔ - 6y - 10 = 50 ⇒ y = - 10 .... (4)

(4) ----> (2)

x + 2(- 10) = - 2 ⇒ x = 18

(18, - 10)

Answer:

C. 36π units²

Step-by-step explanation:

Surface area of a sphere: 4πr²

\(4\pi r^2\\4\pi (3)^2\\4\pi (9)\\36\pi\)

Answer:

Brooklyn would get paid 16.30 hourly. So she will have to work 15 hours the next week to earn 244.50.

Step-by-step explanation:

Divide 179.30 by 11 and you would get 16.30 which is her hourly wage. Then you divide 244.50 by 16.30 to see how many hours she would have to work to earn 244.50.

Answer:

15 Hours

Step-by-step explanation:

179.30 / 11 = $16.3 an hour

244.5 / 16.3 = 15 hours

Answer:

6

Step-by-step explanation:

7

The time at which changeover to sleet can occur is 10:30 Am.

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

Given that the temperature outside is dropping at a rate of 1.5 °F each hour. Also, Currently, the temperature is 53 °F and the time is 8:30 Am. Therefore, we can write,

32 °F = 53 °F - (1.5 °F)x

32 = 53 - 1.5x

32 - 53 = -1.5x

-21 = -1.5x

x = -21 / -1.5

x = 14

Thus, it will take 14 hours for a changeover. Now, since the base time is 8:30 Am, therefore, the time after 14 hours will be 10:30 Am.

Hence, the time at which changeover to sleet can occur is 10:30 Am.

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Answer:

the answer is x (-8, -5\2)

Answer: If 2 out of every 3 chickens are red, then about 13 chickens would be red. There is no whole-number answer because 20/3 cannot be simplified to a whole number.

Answer:

9/79/169%

Step-by-step explanation:

16/169×100%=9/79/169%

Answer:

7 = 3t + 1

t = 6

....................

7 = 3t - 2t + 3

t = 4

Answer:

B and C are true.

Step-by-step explanation:

The answer to the different parts is 32/81, (x+4) ^4/81 - 1,0.5299, -0.41 and 32.

(a) For this function to be a probability density function, it must satisfy the following conditions:

It must be non-negative for all values of x.

The area under the curve must be equal to 1 over the entire range of x.

Thus, we have:

∫f(x)dx = ∫c(x+4)^3dx = 1

Applying integration by substitution, let u = x+4, so that du/dx = 1 and dx = du. Then:

∫c(x+4)^3dx = c∫u^3du = c(u^4/4) = c(x+4)^4/4

Setting this equal to 1 and solving for c, we get

c(x+4)^4/4 ∣∣ 0 to infinity = 1

Substituting infinity, we get:

c(infinity) = 0, so we must use a limit to evaluate the integral at infinity. Let L be a large number, then:

c∫0 to L (x+4)^3dx = c[(L+4)^4/4 - 4^4/4] → cL^4 as L approaches infinity.

Thus, we have:

cL^4 = 4/[(L+4)^4 - 4^4]

Taking the limit as L approaches infinity, we get:

c = 32/81.

Therefore, c = 32/81 makes this a legitimate probability density function.

(b) The cumulative distribution function (c.d.f.) of X is given by:

F(x) = ∫f(t)dt from 0 to x

   = ∫32/81(t+4)^3dt from 0 to x

   = 32/81 [(x+4)^4/4 - 4^4/4]

   = (x+4)^4/81 - 1

(c) To find the probability that the time to failure is between 2 and 5 years, we evaluate the c.d.f. at x = 5 and x = 2, and take the difference:

P(2 ≤ X ≤ 5) = F(5) - F(2)

            = [(5+4)^4/81 - 1] - [(2+4)^4/81 - 1]

            = 4101/6561 - 625/6561

            = 3476/6561

            ≈ 0.5299

(d) To find the 60th percentile of the failure time, we need to find the value x such that F(x) = 0.6. Solving for x in the equation F(x) = (x+4)^4/81 - 1 = 0.6, we get:

(x+4)^4/81 = 1.6

Taking the fourth root of both sides, we get:

x+4 = 3.59

x = -0.41

Since the time to failure cannot be negative, we must interpret the 60th percentile as being 3.59 - 4 = -0.41 years from now, i.e., it has already failed with 60% probability.

(e) The expected value of X is given by:

E[X] = ∫xf(x)dx from 0 to infinity

   = ∫32/81(x+4)^4dx from 0 to infinity

   = 32

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The percentage of representatives staying at least two nights renting a car is 44%. Then the correct option is B.

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

The two-way table below describes the car rental habits of sales representatives attending a conference.

The percentage of representatives staying at least two nights rented a car will be

\(\rm Percentage = \dfrac{11}{25}*100 \\\\Percentage =0.44*100\\\\Percentage = 44 \%\)

The percentage of representatives staying at least two nights renting a car is 44%. Then the correct option is B.

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Answer:

$153

Step-by-step explanation:

Divide by 100-sale%

102/.66666=

$153

Check: 153x.666666=102 YES

Answer:

the original price is 153

Step-by-step explanation:

leather jacket is 102 sale price

the sale is 1/3 of original price

the original price=1/2 its price=sale price

x-1/3x=102

2/3 x=102

2x=306

x=306/2

x=153 dollars

Answer:

 17.14

Step-by-step explanation:

You have the data values {3, 4, 5, 7, 10, 12, 15}

To find the mean, \(\frac{3+4+5+7+10+12+15}{7} =8\), yay a whole number, my favorite.

Then, \((3-8)^2+(4-8)^2+(5-8)^2+(7-8)^2+(10-8)^2+(12-8)^2+(15-8)^2=120\).

Since n=7, σ^2≈\(17.14\)

Answer:

To find the width of the garden, we need to use the formula for the area of a rectangle, which is:

Area = length x width

In this case, we know the length is 1 yard and the area is 5 square yards. We can substitute these values into the formula and solve for the width:

5 = 1 x width

width = 5/1

width = 5

Therefore, the garden should be 5 yards wide.