Can someone please help me

All five answers are (1) 285.7 ft2 (2) 1056 cm2 (3) 105 mm3 (4) 108 cm3 (5) 628 mm3 in accordance with the provided assertion.

In mathematics, volume refers to the amount of space present within a specific 3D object. As an example, the dimensions of a fish aquarium are three feet long, one foot broad, and two feet height.

By increasing the length, width, and height, or 3x1x2, which also equals six, the volume is determined. Consequently, the fish tank has a 6 cubic foot size.

(1) The lateral area of a cone can be calculated using the formula L = πrℓ, where r is the radius and ℓ is the slant height. Using the given values, we have:

L = π(7)(13) ≈ 285.7 ft²

Rounding to the nearest tenth, the answer is 285.7 ft².

(2) A = B + (1/2)Pl, where B is the base area, P is the base circumference, l is the slope height, and A is the surface area, can be used to determine the surface area of a square pyramid. Since the pyramid's foundation is square, we have:

B = (24)² = 576 cm²

The perimeter of the base is 4 times the base length, so we have:

P = 4(24) = 96 cm

Now we can use the formula to find the surface area:

A = 576 + (1/2)(96)(16) = 1056 cm²

Therefore, the surface area of the square pyramid is 1056 cm².

(3) The volume of a rectangular prism can be calculated using the formula V = lwh,

where

l is the length

w is the base

h is the height

V is the volume.

Substituting the given values, we have:

V = (5)(7)(3) = 105 mm³

Therefore, the volume of the rectangular prism is 105 mm³.

(4) The formula V = (1/3)Bh, where B is the base area, h is the height, and V is the volume, can be used to determine the volume of a square pyramid. Since the pyramid's foundation is square, we have:

B = (9)² = 81 cm²

Now we can use the formula to find the volume:

V = (1/3)(81)(4) = 108 cm³

Therefore, the volume of the square pyramid is 108 cm³.

(5) The volume of a cone can be calculated using the formula V = (1/3)πr2h, where r is the radius, h is the height, and V is the volume. Substituting the given values, we have:

V = (1/3)π(10)²(6) ≈ 628.3 mm³

Rounding to the nearest whole number, the answer is 628 mm³.

Therefore, the volume of the cone is 628 mm³.

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The amount of Chemical  B needed is 1.6 g.

This refers to a diagram that shows a series of one or more points, lines, line segments, curves, or areas that represents the variation of a variable when compared with that of one or more other variables.

The quantity of Chemical B is plotted against the quantity of  Chemical A.

Chemical B  is plotted on the vertical axis using the scale of 1 cm to represent 2 units. Chemical A is plotted on the horizontal axis using the scale of 1 cm to represent 1 unit.

Therefore, on the graph, the line passing through the origin of the graph shows that when  1.4 g of Chemical A is used  1.6 g of Chemical B is needed.

Chemical B  is plotted on the vertical axis using the scale of 1  cm to represent 2 units.

To get the amount of Chemical B is  on vertical axis =  2 grams

                                                                                             5 boxes

                                                                                       =0.4 g

Tracing the mass of Chemical A used 1.4 g it meets the line passing through the center at 4th line (4th box).

To get the amount of Chemical B is  on vertical axis = amount of Chemical B per box * the number of line (boxes).

To get the amount of Chemical B is  on vertical axis = 0.4 g * 4 lines (boxes)

                                                                                        = 1.6 g

Hence The amount of Chemical  B needed is 1.6 g.

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They should use 6 cup of Noah's measuring cup

They are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.

To solve this problem we must perform the following algebraic operations with the given information

Information about the problem:

Calculating the number of cup the should use:

Number of cup = Recipe call / Noah's cup

Number of cup = (3/4) / (1/8)

Number of cup = 3*8 / 4*1

Number of cup = 24/4

Number of cup = 6

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Correctly written question:

Melanie and Noah are baking a birthday cake for Francesca. The recipe call for 3/4 measuring cup and Noah has a 1/8 measuring cup. Which cup should they use?

The function y= -5(x+6) is graphed in the image below! :)

Answer:

16cm, 37mm

Step-by-step explanation:

For number 11, the shape on the left is a square. This means all the sides are equal length, so the side shared with the triangle is also 12 cm. Using the pythagorean theorem, you will figure out that the unknown side is 16 (this is also another ratio of a 3-4-5 triangle).

For number 12, the side shared with the larger triangle must be 12 mm because of the pythagorean theorem once again (a^2+b^2=c^2). Then, you must use that same formula again to solve for x which is the hypotenuse. This turns out to be 37mm.

Side note**

in the pythagorean theorem, the c value is the hypotenuse and the a and b values are the legs of the triangle. it is probably best to use a calculator since you will be dealing with square roots.

the impact on the error probability of part is on  Decreasing trends of the test procedure

A Type II error is when we fail to reject a false null hypothesis. Higher values of α make it easier to reject the null hypothesis, so choosing higher values for α can reduce the probability of a Type II error.

The consequence here is that if the null hypothesis is true, increasing α makes it more likely that we commit a Type I error (rejecting a true null hypothesis).

So using lower values of α can increase the probability of a Type II error.

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Answer:

\(|A-38|=5\)

33% or 43%

Step-by-step explanation:

Given that poll is accurate within \(\pm5\).

38% voters have voted for candidate A.

\(A\) is the percent of voters who will vote for candidate A.

So, value of A can be 38+5=43%

OR

38-5 = 33%

We will write an absolute function for the above situation.

But, first of all, let us have a look at the definition of Absolute value function.

\(|y|=\left \{ {-{y}\ if\ y<0 \atop {y}\ if\ y>0} \right.\)

The the value of function gives us a negative sign when the value inside the modulus function is negative.

\(A-38\) will be negative when \(A < 38\) and

\(A-38\) will be positive when \(A>38\).

This difference is given as \(\pm5\).

Therefore, the absolute value function can be written as:

\(|A-38|=5\)

Case 1: \(A < 38\)

As per definition of modulus function, it will open with a negative sign.

\(-A+38=5\Rightarrow A = 33\)

Case 2: \(A>38\)

As per definition of modulus function, it will open with a positive sign.

\(A-38=5\Rightarrow A = 43\)

Therefore the answer is 33% or 43%

The sample data range is = 2.68

From the question, we have the  grade-point averages apply to a random sample of graduating seniors are:

3.88 , 2.73, 2.71, 3.09, 3.28, 3.51, 2.86, 1.20, 3.13, 3.24

As we know that:

The range of the data is calculated by using the following formula;

Range = Highest value in the data - Lowest value in the data

And in the given data,

Highest value in the data is = 3.88

Lowest value in the data is = 1.20

Now, Put all the values in above formula:

Range = 3.88 - 1.20

Range = 2.68

So, the sample data range is = 2.68

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The correct conclusion for "it was expected that the hourly wage in October 2019 would increase, and the p-value associated with the hypothesis test is .001" is "the average wage is not increased."

A hypothesis is described in statistics as a formal statement that explains the relationship between two or more variables belonging to the specified population. It aids the researcher in converting the stated issue into an understandable justification for the study's findings. A strong hypothesis outlines the predicted link between the dependent and independent variables and is succinct and straightforward. It is best to be as specific and testable as possible when describing this relationship.

The answer to the statement "it was predicted that the hourly wage in October 2019 would grow, and the p-value associated with the hypothesis test is.001" should be "the average wage is not raised."

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Answer:

0.625 62.5%

Step-by-step explanation:

Answer:

Step-by-step explanation:

Dividing 5 by 8 on a calculator results in the "equivalent decimal:"

5/8 = 0.625

0.625 converts to 62.5%:  a percent

5/8 is a proper fraction

Answer:

332,193 years

Step-by-step explanation:

From the question above, we are to calculate the time in an half life question, hence, the formula is given as

t = In(Nt/No) ÷ -(In2/t½)

Where

t = time is takes for an substance to decay or reduce

Nt = Amount of sample after time = 2g

No = Initial amount of sample = 20g

t½ = Half life = 100,000 years

Hence,

t = In(2/20) ÷ (In 2/ 100,000)

t = 332192.80948874 years

Approximately = 332,193 years

Answer:

The slope is 3.

Step-by-step explanation:

The equation for slope is either \(\frac{y2-y1}{x2-x1}\) or \(\frac{y1-y2}{x1-x2}\). So this should be \(\frac{19-13}{6-4}\), which is 3.

Answer:

Slope =

6

—

2

Step-by-step explanation:

First find the rise over run

Second use the format

Y2-y1

———-

X2-x1

Using the format you will get this

19-13

——

6-4

Next solve

Which then you get

6

—

2

The average change in the volume of water per day is obtained as 0.625  litres.

The rate change of volume is the change of volume with respect to time.

For instantaneous change the derivative of the expression of volume can be taken.

The average change in the volume of water can be obtained as follows,

Average change = Volume of water ÷ Number of days

                            = 2.5 ÷ 4 = 0.625

Hence, the average change in water volume is given as  0.625 liters per day.

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32. Solving integral equation using the convolution theoremThe convolution theorem states that the convolution of two signals in the time domain is equivalent to multiplication in the frequency domain.

Therefore, to solve the given integral equation using the convolution theorem, we need to take the Fourier transform of both sides of the equation.

y(t) = ∫_{-∞}^{∞} sinh(−)g() + ∫_{-∞}^{∞} sinh(−−)g()Taking the Fourier transform of both sides, we haveY() = 2π[G()sinh() + G()sinh(−)]where Y() and G() are the Fourier transforms of y(t) and g(t), respectively.Rearranging for y(t), we gety(t) = (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]e^(j) d= (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)](cos()+j sin())d= (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]cos()d+ j(1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]sin()dTherefore, the solution to the integral equation is given by:y(t) = (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]cos()d + (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]sin()d

It is always important to understand the principles that govern an integral equation before attempting to solve them. In this case, we used the convolution theorem to solve the equation by taking the Fourier transform of both sides of the equation and rearranging for the unknown signal. The steps outlined above provide a comprehensive solution to the equation.  33. Fourier series representation of f(x)

The Fourier series representation of a periodic signal is an expansion of the signal into an infinite sum of sines and cosines. To find the Fourier series representation of the given signal, we need to first compute the Fourier coefficients, which are given by:an = (1/T) ∫_{-T/2}^{T/2} f(x)cos(nx/T) dxbn = (1/T) ∫_{-T/2}^{T/2} f(x)sin(nx/T) dxFurthermore, the Fourier series representation is given by:f(x) = a_0/2 + Σ_{n=1}^{∞} a_n cos(nx/T) + b_n sin(nx/T)where a_0, a_n, and b_n are the DC and Fourier coefficients, respectively. In this case, the signal is given as:f(x) = -1, -π

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If a study concluded that among people with a certain​ virus, 99.2​% of tests conducted were​ (correctly) positive, while for people without the​ virus, 98.1​% of the tests were​ (correctly) negative.  the probability that a patient testing negative is truly free of the​ virus is 0.9967.

Probability (testing negative is truly free of the​ virus) =  (1- 0.29) (0.981) / (0.29) (1- 0.992) + (1- 0.29) (0.981)

Probability (testing negative is truly free of the​ virus) =  (0.71) (0.981) / (0.29) (0.008) + (0.71) (0.981)

Probability (testing negative is truly free of the​ virus) = 0.69651 / 0.00232 + 0.69651

Probability (testing negative is truly free of the​ virus) = 0.69651/ 0.69883

Probability (testing negative is truly free of the​ virus) =0.9967

Therefore we can conclude that the probability (testing negative is truly free of the​ virus) is 0.9967.

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Answer:

6 and 12 i Hope i suck at math

Step-by-step explanation:

Answer:

His numbers are 2 and 24

Step-by-step explanation:

We see this because of our factor of +4 = 6 wich makes it 30.

Dont forget to make me brainliest!

1. From the picture, A'B'C'D' is a reflection of ABCD over the y-axis

2. From the picture, A"B"C"D" is a rotation of A'B'C'D'

3. Since A'B'C'D' and A''B''C''D'' are rigid transformations of ABCD, then ∠B' and ∠B'' are congruent with ∠B, that is, the measures of ∠B' and ∠B'' are 89°

4. Since A''B''C''D'' is a rigid transformation of ABCD, then the perimeter of A''B''C''D'' is the same as the perimeter of ABCD, which is 6 + 6 + 8 + 6.3 = 26.3

Once we have categorized an object, our memory of the object increasingly resembles the category is B) prototype. This means that when we categorize an object, our memory of it begins to resemble the prototype or typical example of that category. For example, if we categorize a bird as a robin, our memory of the bird will increasingly resemble the characteristics of a typical robin.

This happens because our brain uses prototypes as a shortcut to process information and make sense of the world around us. We use prototypes to quickly identify objects and make assumptions about their characteristics based on their category.

our memory of an object after categorization is influenced by the prototype of the category. This helps us to quickly process and make sense of information, but it can also lead to errors and biases in our thinking.


A prototype is a mental image or best example of a category. When we categorize an object, our memory of the object increasingly resembles the prototype because we tend to recall the most representative or typical example of the category.

Once we categorize an object, our memory of the object becomes more like the prototype, which is the best example of the category. This is because we tend to remember the most representative or typical examples of a category.

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Answer:

they are 4 i think

Step-by-step explanation:

5 x 4 = 20

Answer:

100

Step-by-step explanation:

20 divided by 1/5 = 20 x 5/1 = 100

The percentage of $898.01 billion that is spent on $161.4 billion​ is equal to 17.97%.

In Mathematics, a percentage simply refers to any number that is expressed as a fraction of hundred (100). This ultimately implies that, a percentage indicates the hundredth parts of any given number.

In order to determine the percentage, we would use the following mathematical expression:

Percentage = 161.4/898.01 × 100

Percentage = 0.1797 × 100  

Percentage = 17.97%

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An inequality like the statement, x + 3 > 5, can be solved by finding the value of the variable, "x", which is x > 2.

Inequalities are used to express relationships between quantities or values that are not equal. They can be used to describe constraints or limitations on a solution to a problem, or to represent a range of possible values.

Inequality can also be used to describe relationships between variables in algebraic expressions or equations.

To solve an inequality, we need to isolate the variable in the given statement to determine the value of the variable.

For example, given the inequality, x + 3 > 5, in order to solve this inequality, we need to find the value of x by subtracting 3 from both sides:

x + 3 - 3 > 5 - 3

x > 2.

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The amount of time (in hours per week) a student utilizes a math-tutoring center roughly follows the normal distribution \(y = 0.7979e^-(x-5.4)^2/0.5\), where x is the number of hours.

The normal distribution is a bell-shaped curve that is often used to model real-world data. In this case, the normal distribution is used to model the amount of time that students spend at the math-tutoring center. The peak of the bell-shaped curve represents the average amount of time that students spend at the center, which is 5.4 hours per week. The tails of the bell-shaped curve represent the amount of time that students spend at the center that is less than or greater than the average amount of time.

The standard deviation of the normal distribution is 0.5 hours. This means that about 68% of the students spend between 4.9 and 6 hours at the center per week. About 16% of the students spend less than 4.9 hours at the center per week, and about 16% of the students spend more than 6 hours at the center per week.

The normal distribution is a useful tool for understanding the amount of time that students spend at the math-tutoring center. It can be used to estimate the average amount of time that students spend at the center, and it can be used to determine the amount of time that students spend at the center that is less than or greater than the average amount of time.

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Answer:

the answer is 75%

Step-by-step explanation:

To write 3/4 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % . 3/4 * 100 = 0.75 * 100 = 75%. And finally we have: 3/4 as a percent equals 75%.

The percentage value of 3/4 is 75%.

Percentage is a part of the whole number. It is denoted by % sign.

1 %= 1/100.

The given number is 3/4,

To convert 3/4 in percentage, use percentage property,

1%=1/100

⇒1=100%

⇒3/4= 75%

So 75% is the percentage value of 3/4.

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the new value of the house is $225,500. we can solve this by  substituting the given information into the equation from part (a)

what is equation ?

An equation is a mathematical statement that uses an equal sign to show that two expressions have the same value. Equations are used to represent a wide range of relationships between variables

In the given question,

(a) To write the new value in terms of the old value, we can use the fact that the value decreased by 18%, which means that the new value is equal to 100% - 18% = 82% of the old value. So, we can write:

New value = 0.82 x Old value

(b) To determine the new value, we can substitute the given information into the equation from part (a):

New value = 0.82 x 275,000

New value = 225,500

Therefore, the new value of the house is $225,500.

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Answer:

A. 7

Step-by-step explanation:

The difference between 3 times a number x and 2 is 19 is the same as writing an equation that is 3x-2=19.

Use this equation to solve for x.

3x-2=19 (Add 2 to both sides)

3x=21 (divide by 3)

x = 7

The number of seeds that Frank will plant, expressed in algebraic form, is equal to 6b + 10.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We are Given that, b and (5b + 10) are the seeds to be planted by Frank in different gardens, the number of seeds Frank is going to plant can be expressed in algebraic form by adding both expressions together.

Since Like terms with the same variables are added together.

Thus:

b + 5b + 10

6b + 10

Therefore, the number of seeds that Frank will plant, expressed in algebraic form;

6b + 10.

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Answer: the answer D is correct and is proven to be correct

Step-by-step explanation:

Answer:

\(y = a {x}^{2} + bx + c \\ y = - 2 {x}^{2} + 6x - 8 \\ so \\ a = - 2 \\ b = 6 \\ c = - 8\)

Answer:

Area: 71 in²

Perimeter: 35 in

Step-by-step explanation: