name 3 fractions between 2/8 and 3/8

Answer:

1364

Step-by-step explanation:

use the calculator

There are 126 whole numbers less than 127.

To find the number of whole numbers that are less than 127, we need to count all the integers from 1 to 126 inclusive.

Since 1 is the smallest positive whole number, and 126 is the largest whole number less than 127, there are 126 whole numbers less than 127.

So, there are 126 whole numbers less than 127.

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When aluminum oxidizes in air, it forms aluminum oxide (Al2 O3): 54 g of Aluminum were oxidized.

The equation for the reaction:

4Al(s)+3O₂(g)→2Al₂O₃(s)

We are required to calculate the mass of Aluminium that reacted;

Step 1: Calculating the number of moles Aluminum oxide

Mass of Aluminium oxide = 102 g

Molar mass of Al₂O₃ = 101.96 g/mol

Number of moles = Mass ÷ Molar mass

                            =  102 g ÷ 101.96 g/mol

                            = 1 mole

Step 2: Number of moles of Aluminium oxidized

From the equation, the mole ratio of Al to Al₂O₃ is 4 : 2

Therefore; Moles of Al is (4/2)(1) is 2 moles

2 moles of Aluminum were oxidized

Step 3: Mass of Aluminum oxidized

Mass = Number of moles × Molar mass

Molar mass of Aluminum is 27 g/mol

Therefore;

Mass of Aluminum = 2 moles × 27 g/mol

                               = 54 g

Therefore, 54 g of Aluminum were oxidized

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Answer:

every minute 1.25 customers would come into the store

Step-by-step explanation:

Answer:

x = 9

Step-by-step explanation:

x/3 = 6/2

~Simplify

x/3 = 3

~Rewrite

1/3x = 3

~Multiply 3 to both sides

x = 9

Best of Luck!

Answer: x=9 ✅

Step-by-step explanation:

Hii student, I'd love to help you out! (:

In this problem, we need to solve a proportion. This is fun, right?

3,2,1 - start!

Solving proportions is easy as winking, if you are familiar with a skill that is known as "cross multiplying".

We have these two proportions:

(oh and by the way, proportions are just equivalent (equal) fractions. That's all proportions are. Nothing more)

Our proportions are:

\(\large\boldsymbol{\cfrac{x}{3}=\cfrac{6}{2}}\)

We multiply x times 2 and 3 times 6; upon  doing that we obtain.

\(\multimap\quad \tt 2x=18\)

Did you see that? 2 fractions turned into a little equation that we can solve within 5 seconds (or faster)!

To do that we simply divide both sides by 2, since x is multiplied by 2 and we need to get it all by itself on one side of the equal sign)

\(\multimap\quad \tt x=9\)

Woohoo! We found the answer! ✨

Hope I helped! Best wishes.

Reach far. Aim high. Dream big.

\(\underbrace\)

Answer:x + 10 = x2 + 2x + 1 x + 10 = x2 + 1 x + 10 = x2 – 1.

Step-by-step explanation:

The solution is, x+10 = x^2 + 2x + 1 is the equation is related to

√x+10  - 1 = x.

Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

here, we have,

given that,

the equation is,

√x+10  - 1 = x

or, √x+10 = x+1

now, taking square on both side, we get,

x+10 = (x+1)^2

we have,

(a+b)^2 = a^2 + 2ab + b^2

so, applying that, we get,

x+10 = x^2 + 2x + 1

Hence, The solution is, x+10 = x^2 + 2x + 1 is the equation is related to √x+10  - 1 = x.

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Answer:  the awnser is 43

Step-by-step explanation:

The price per unit that will yield maximum revenue is $67.04.

In order to find the price per unit that will yield maximum revenue, we have to follow the below-given steps:

Step 1: The revenue function for x units of a product is

R(x) = x * P(x),

where P(x) is the price per unit of the product.

Step 2: The demand function is

D(x) = 170e^(-0.04x)

Step 3: We are given that the 0 ≤ x ≤ 55, it means that we only need to consider this domain. Also, the price per unit of the product is unknown. Let's take it as P(x). Hence, the revenue function will be:

R(x) = P(x) * xR(x) = x * P(x)

Step 4: We need to find the price per unit that will yield maximum revenue. In order to do that, we have to differentiate the revenue function with respect to x and find its critical point. Let's differentiate the revenue function.

R'(x) = P(x) + x * P'(x)

Step 5: Now we will replace P(x) with D(x) / x from the demand function to obtain a function that depends on x only.

This will give us R(x) = x * (D(x) / x).

Simplifying this expression, we get R(x) = D(x).

Let's write it. R(x) = D(x)R'(x) = D'(x)

Step 6: Differentiate D(x) with respect to x, we get:

D'(x) = -6.8e^(-0.04x)

Step 7: To find the critical point of R(x), we will equate R'(x) to zero and solve for x.

R'(x) = 0D(x) + x * D'(x) = 0

Substitute D(x) and D'(x)D(x) + x * D'(x) = 170e^(-0.04x) - 6.8x * e^(-0.04x) = 0

Divide both sides by e^(-0.04x)x = 25

The critical point of R(x) is 25. It means that if the company sells 25 units of the product, then the company will receive maximum revenue.

Step 8: We need to find the price per unit that will yield maximum revenue. Let's substitute x = 25 in the demand function to find the price per unit of the product.

D(25) = 170e^(-0.04*25) = 67.04

Therefore, the price per unit that will yield maximum revenue is $67.04.

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Using Trigonometry formulae,

the length of the longest item that can be carried horizontally around the corner is 19.60 feet.

Let's try to draw it and try to solve with a diagram we're moving into a new apartment. We see that the right corner is 8 feet wide, but then that's right there is 6 feet wide and we're going to have some ladder or a long item required here .

Creating some angle θ and let b feet be the distance parallel to 8 feet and a be the distance parallel to 6 feet and then one portion we'll call d, other one portion e . So, the total length (L) = d + e

In this case, sinθ = b/e,

because that's the opposite over the hypotenuse, => e sinθ = b

and d cosθ = a

We know that e = b cosecθ and d = a secθ

so the length(L) = a secθ + b cosecθ In order to maximize length , we want to take the derivative with respect to θ we get,

dL/dθ = - b cotθ cosecθ + a secθ tanθ

now, dL/dθ = 0

=> - b cotθ cosecθ+ a secθ tanθ = 0

=>b cotθ cosecθ = a secθ tanθ

=>tan³θ = b/a

=> tanθ = (b/a )⁰·³³

plugging value of b= 6 and a = 8

tanθ = (6/8)⁰·³³

=> tanθ = 0.9085

so, θ = tan⁻¹(0.9085)

=> θ = 42.2550

plug the value of θ in e and d

we get , e = 6 cosec(42.2550) = 8.8 d = 8 sec(42.2550) = 10.80

then, L = d + e

=> L = 8.8 + 10.80 = 19.60

Hence, the required length is 19.60 feet .

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a).  2^38 bytes of memory

b). 12 bits

c). The maximum number of entries in the single-level page table would be 2^38.

d). The size would be 2^38 * 4KB, which equals 2^20 pages.

e). The maximum number of entries it can have depends on the remaining bits of the logical address.

f). The amount of bits required to denote an index into the inner page table is obtained by subtracting the offset and outer page index bits from the logical address.

a. To address a physical memory size of 128GB (2^37 bytes), a 64-bit architecture would require 38 bits for the logical address, allowing access to a maximum of 2^38 bytes of memory.

b. Given that the page size is 4KB (2^12 bytes), 12 bits would be needed to specify the displacement into a page. This means that the lower 12 bits of the logical address would be used for page offset or displacement.

c. With a single-level page table, the maximum number of entries would be equal to the number of possible logical addresses. In this case, since the logical address requires 38 bits, the maximum number of entries in the single-level page table would be 2^38.

d. The size of the single-level page table is determined by the number of entries it contains. Since each entry maps to a page of size 4KB, the size of the single-level page table can be calculated by multiplying the number of entries by the size of each entry. In this case, the size would be 2^38 * 4KB, which equals 2^20 pages.

e. For a two-level page table, the size of the outer page table is determined by the number of entries it can contain. Since the outer page table uses 4KB pages, the maximum number of entries it can have depends on the remaining bits of the logical address. The number of bits used for the index into the outer page table is determined by subtracting the bits used for the inner page index and the offset from the total number of bits in the logical address.

f. The number of bits used to specify an index into the inner page table can be determined by subtracting the bits used for the offset and the bits used for the outer page index from the total number of bits in the logical address. The remaining bits are then used to specify the index into the inner page table.

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This reason why the area of the circle is more then 2 square units but less then 4 square units is: because, the circle does not totally cover the area defined by the four squares.

The area of a square is given by the formula;

Area = l²

Where l is side ength

Since each circle has area, A = 1 square unit.

Therefore,

Length of Each side of each square = 1 unit

This in turn is the radius of the circle given;

The area of the circle is therefore, Area = πr²

Area = (22/7) × 1²

Area = 3.142 square units

In conclusion the area of the circle is less than 4 square units.

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The error Justin made in his calculation is "He should have added the values in the numerator before dividing by 2".

The correct answer choice is option B

(x + y + 5) / 2

Where,

x and y are his parents’ current heights in inches,

Mom’s height = 54 inches

Dad’s height = 71 inches

Substitute into the expression

(71 + 54 + 5) / 2

= 130/2

= 65 inches

Justin's work:

( 71 + 54 + 5 ) / 2

= 71 + 27 + 5

= 103 inches

Therefore, Justin should have added the numerators before dividing by 2.

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Answer:

2, 5 and 6

Step-by-step explanation:

this is because mode is the most appeared number in a data and 2,5 and 6 all appeared twice

Answer:

Step-by-step explanation:

The first one is equal to.  203/203 is equal to 1.  1 times any number is itself.

The second on is less than.  9/37 is a proper fraction and when a number is multiplied by a proper fraction, it gets smaller.

Answer:

suree thx

Step-by-step explanation:

Answer:

Uhh. What Do you mean? this is very off topic

The mean of the given data set is 3.5, the variance is 5.056, and the approximate mean using the grouped data table is 0.428.

The average of a set of values is referred to as the mean. To calculate the mean of a dataset, add up all of the values and divide by the number of values.

We can calculate the mean of the given data set as follows:

Mean = (9 + 6 + 2 + 0 + 2 + 3 + 5 + 2 + 1 + 5)/10

Mean = 3.5

Variance:Variance is a measure of how much a set of data varies. In other words, variance tells us how far each value in the dataset is from the mean. The variance formula is as follows:

σ² = (Σ(x - μ)²) / N

Where σ² is the variance, Σ is the sum, x is each value in the data set, μ is the mean of the data set, and N is the number of values in the data set.

Using the above formula, we can calculate the variance for the given data as follows:

First, we need to calculate the mean of the data set.x f(x)

xf(x)4 1 45 3 15 6 4 24 7 4 28 8 2 16

Total 14 128

Mean (μ) = 128 / 14 = 9.14

σ² = (Σ(x - μ)²) / N

σ² = [1(4 - 9.14)² + 3(5 - 9.14)² + 4(6 - 9.14)² + 4(7 - 9.14)² + 2(8 - 9.14)²] / 14

σ² = 5.056

Approximating the Mean:

We can use the midpoint of each interval as an approximate value for the entire interval. We can calculate the approximate mean as follows:

Mean = Σ(midpoint × proportion of stocks)

Mean = (-0.80 × 0.03) + (-0.40 × 0.03) + (0.00 × 0.2) + (0.40 × 0.44) + (0.80 × 0.16) + (1.20 × 0.06) + (1.60 × 0.05) + (2.00 × 0.03)

Mean = 0.428

Therefore, the mean of the given data set is 3.5, the variance is 5.056, and the approximate mean using the grouped data table is 0.428.

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In the context of statistics, a statistic refers to a numerical value that is calculated from a sample of data, while a parameter refers to a numerical value that describes a population.

In the given scenario, the number of birds in different regions can be considered as either a statistic or a parameter depending on the context in which it is used.

If the number of birds is obtained by counting the birds in a specific region and then calculating summary measures such as the mean, median, or standard deviation based on that sample, then it would be considered a statistic. This is because the data is collected from a subset (sample) of the entire population of birds.

On the other hand, if the number of birds represents the total count or an average count across all regions without any sampling involved, then it would be considered a parameter. In this case, the value represents a characteristic of the entire population of birds in different regions.

It is important to note that whether the number of birds is considered a statistic or a parameter depends on how the data is collected and analyzed.

If multiple samples are taken from different regions and statistical inference techniques are used to make inferences about the entire population, then it would be appropriate to consider it as a statistic. However, if the data represents a complete count or an average across all regions without any sampling involved, then it would be considered a parameter.

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Answer:

Its the last option GFI and HIK

Step-by-step explanation:

Using it's concept, the range of the function is given by:

All real numbers less than or equal to 4.

The range of a function is the set that contains all possible output values for the function.

For a concave down parabola, the range is from negative infinity to the y-value of the vertex, which in this problem is of 4, hence the correct option is given by:

All real numbers less than or equal to 4.

The graph of the function is given at the end of the answer, which corroborates our answer, as the range is composed by the values of y of the function.

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Answer:

All non zero digits count in significant digits.

(a) is correct option.

Step-by-step explanation:

Given that,

1.4 has 2 significant digits.

We know that,

Significant digits :

All non zero digits count in significant digits.

All zero which is present in between two significant digits it is also significant.

Leading zero is not count as significant.

Trailing zero is count as significant.

We need to find 1.4 has 2 significant digits as a result of which rule

Using given rules

1.4 has 2 significant digits it is follows the rule of all non zero digits count in significant digits.

Hence, All non zero digits count in significant digits.

(a) is correct option.

X is a continuous uniform random variable with a mean of 9.5 am and a variance of 1/12.

Since X denotes a random delivery time anywhere between 9 am and 10 am, X is a continuous random variable that follows a uniform distribution.

The uniform distribution is a probability distribution where all values between a lower bound (a) and an upper bound (b) have equal probability.

In this case, a = 9 am and b = 10 am, so the probability density function of X can be expressed as:

f(x) = 1/(b-a) = 1/(10-9) = 1

for 9 ≤ x ≤ 10, and f(x) = 0 otherwise.

The expected value or mean of X can be calculated as the average of the lower and upper bounds:

E[X] = (a + b)/2 = (9 + 10)/2 = 9.5 am

The variance of X is given by:

\(Var[X] = (b - a)^2/12 = (10 - 9)^2/12 = 1/12\)

Therefore, X is a continuous uniform random variable with a mean of 9.5 am and a variance of 1/12.

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The amount of juice the cup can hold given that the cup has diameter of 8 centimeters and a height of 12 centimeters is 602.88 cm³

To know the amount of juice the cup can hold, we shall obtain the volume of the cup.

We shall use the formula for obtaining volume of cylinder to obtain the volume of the cup. Details below:

Volume = πr²h

Volume = 3.14 × 4² × 12

Volume = 3.14 × 16 × 12

Volume = 602.88 cm³

Thus, we can conclude from the above calculation that the amount of juice the cup can hold is 602.88 cm³

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Answer:

110

Step-by-step explanation:

I took the test

Answer:

110

Step-by-step explanation:

Answer:

v = 686 km/h

Step-by-step explanation:

speed = distance/time

v=d/t

v = 2470km/3.6h

v = 686.111... km/h

v = 686 km/h

Hope that helps

Answer:

square root of 49 = √49 = 7

the negative square root of 16 = √16= -4

Step-by-step explanation:

hope it's helpful to you ☺️

Answer:

Square root of 49 is 7

negative square root of 16 is -4

Answer:

There are $\boxed{3}$ paths from $A$ to $B.$

The leading degree of the polynomial is 3. This shows that the polynomial described by the equation is a cubic polynomial

The standard form of a polynomial expression is written as:

\(a_nx^n+ a_{n-1}x^{n-1}+ a_{n-2}x^{n-2}+...\)

A polynomial function has a leading degree that is greater than 2;

Given the polynomial function

\(P(x)=4x^3-31x^3-10058x+158040\)

From the given polynomial, the leading degree of the polynomial is 3. This shows that the polynomial described by the equation is a cubic polynomial

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Answer:

(0,0) means she worked 0 hours and made 0 dollars. (6,45) means she worked 6 hours and made 45 dollars. She makes 7.50 dollars for every hour she works.

Step-by-step explanation:

The dot product of u and v is zero, which means that they are orthogonal. Answer: u and v are orthogonal.

Two vectors u and v are orthogonal if and only if their dot product is zero (0). We will use this condition to determine whether u and v are orthogonal, parallel, or neither. u

= (cosα, sinα, −9) and v

= (sinα, −cosα, 0). If we calculate the dot product of u and v, we get:u·v

= (cosα)(sinα) + (sinα)(−cosα) + (−9)(0)u·v

= 0. The dot product of u and v is zero, which means that they are orthogonal. Answer: u and v are orthogonal.

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