what is the answer
2x+3x-7=42​

_____________________

Solution:

Exact Form:

\(\frac{4}{7}-(-\frac{3}{8}) = \frac{53}{56}\)

______________________

(^Note^)

To subtract fractions, find the LCD (Least Common Denominator), then combine.

Hope this helps! If so, please lmk! Thanks and good luck!

Answer: 53/56

Step-by-step explanation:

sorry if im wrong but since there is 2 negative signs it is going to become positive. so..

4/7+3/8

then make the denominators the same (56)

then multiply the numerators by the number you multiplied for the denominator for the question.

answer: 32/56+21/56 = 53/56

Answer:

Yes, they are correct. Hernando divided 6 by 6.

Step-by-step explanation:

Given that:

Hernando ate 2/8 of a pizza for dinner.

Let the pizza be x. Then:

Hernando ate \(\dfrac{2}{8} \ \ o f \ \ x\)

Then he gave the rest of the pizza to his friends

Hernando now carried out the  following calculations to support his activities;

\(\dfrac{6}{8} \div 6= \dfrac{6 \div 6}{8}= \dfrac{1}{8}\)

\(\dfrac{6}{8} \times \dfrac{1}{6}= \dfrac{6 \div 6}{8}= \dfrac{1}{8}\)

From the above calculation; we will see that Hernando divided 6 by 6 in both cases to get \(\dfrac{1}{8}\).

Thus, the correct answer is:

Yes, they are correct. Hernando divided 6 by 6.

Answer:

A Yes, they are correct. Hernando divided 6 by 6. on edge

Step-by-step explanation:

hope this helps:)

The inverse of a function is given as √x - 1

To get the inverse of any function f(x) we need to ensure that it passes the horizontal line test.

Given the following function

f(x) = (x+1)^2

Let y= f(x) to have:

y = (x+1)^2

Replace y with x to have:

x = (y+1)^2

Make y the subject of the formula

√x =y + 1

Subtract 1 from both sides

√x - 1 = y

Swap

y = √x - 1

Hence the inverse of a function is given as √x - 1

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In order to complete the table on the sample space, combine the numbers given by putting the tens digits first and then the ones digits second as shown attached.

For all spaces below the tens digit, "1" on the first row, put 1 as the first number.

Do the same for the other spaces with digits 4, 5, and 9.

For all the spaces across from the ones digit, "1" on the first column, put 1 as the second number.

The completed table can then be shown attached.

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Use a table to show the sample space of​ two-digit numbers using the digits 1, 4, 5, 9, Use the column label as the tens digit and the row label as the ones digit to complete the table that represents the sample space of​ two-digit numbers.

Answer:

The standard deviation of the measurements is 0.2859

Step-by-step explanation:

n = number of terms = 5

We first find the mean, u

mean = sum of the values of terms / number of terms

\(u = (4.54 + 4.89+5.23+5.12+4.70)/5\)

u = 4.896

Finding standard deviation, S

\(S = \sqrt{(Sum(x-u)^2/(n-1)}\)

Finding the sum, we have,

\(Sum(x-u)^2 = (4.54-4.896)^2 + (4.89 - 4.896)^2 + (5.23 - 4.896)^2+(5.12 - 4.896)^2+(4.70 - 4.896)^2\\Sum(x-u)^2 = 0.32692\)

Now, then S will be,

\(S = \sqrt{(Sum(x-u)^2/(n-1)}\\S = \sqrt{0.32692/(4)}\\\\S = 0.2859\)

Hence the standard deviation is 0.2859

The volume of a cubic foot is equal to 29.9220779 US liquid quarts. This conversion factor is based on the definitions of the cubic foot.

So the volume of a cubic foot is equal to 29.9220779 US liquid quarts. This conversion factor is based on the definitions of the cubic foot as a unit of volume equal to a cube with sides that are one foot in length and the quart as a unit of volume in the US customary system.

The quantity of cubic feet can be multiplied by 29.9220779 to get the conversion to quarts. For instance, if you have a container with a 2 cubic foot volume, the quantity of quarts in that container would be:2 cubic feet multiplied by the US liquid quart density of 29.9220779 gives 59.8441558 US quarts. The volume of a cubic foot is equal to 29.9220779 US liquid quarts. This conversion factor is based on the definitions of the cubic foot as a unit of volume equal to a cube with sides that are one foot in length and the quart as a unit of volume in the US customary system.

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The copy over algorithm algorithm scans a list from left to right and copies every legitimate value into a new list that it creates.

According to the statement

We have given that the there is a algorithm which is used to data cleanup problem of removing 0 values from a data set, and scans a list from left to right and copies every legitimate value into a new list.

and we have to explain about that algorithm.

So,

Here we given that the algorithm copies and paste the values in the new files then

the algorithm is called the copy over algorithm.

So, The copy over algorithm is a a single specimen of something that occurs in a multiple edition, such as a book, article, etc. a matter to be reproduced in print or an imitation or reproduction of an original.

So, The copy over algorithm algorithm scans a list from left to right and copies every legitimate value into a new list that it creates.

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Answer:

14 or 0.14

Step-by-step explanation:

3 1/2 ÷ 1/4

1/4 = 25

3 1/2 ÷ 25 = 0.14 or 14

This is correct answer can you mark me brainliest

Based on the fact that the opposite sides are parallel and the diagonals are congruent, we can conclude that the parallelogram formed by the given vertices O, A, B, and C is indeed a rectangle.

To determine whether the parallelogram formed by the vertices O(0, 0), A(-4, 1), B(-3, 5), and C(1, 4) is a rectangle, we need to consider the properties of a rectangle.

A rectangle is a quadrilateral with four right angles (90 degrees each). We can examine the properties of the given parallelogram to determine if it satisfies these conditions.

First, we can calculate the slopes of the opposite sides of the parallelogram.

The slope of a line passing through two points (x1, y1) and (x2, y2) is given by:

slope = (y2 - y1) / (x2 - x1)

Using this formula, we can calculate the slopes of AB and OC:

Slope of AB = (5 - 1) / (-3 - (-4)) = 4/1 = 4

Slope of OC = (4 - 0) / (1 - 0) = 4/1 = 4  

Since the slopes of the opposite sides AB and OC are equal, we can conclude that AB and OC are parallel.

Next, we can calculate the slopes of the other pair of opposite sides OA and BC:

Slope of OA = (1 - 0) / (-4 - 0) = 1/-4 = -1/4

Slope of BC = (4 - 5) / (1 - (-3)) = -1/4

Again, we find that the slopes of OA and BC are equal, meaning that OA and BC are parallel.

Since both pairs of opposite sides are parallel, this parallelogram satisfies one of the properties of a rectangle.

However, to confirm if it is indeed a rectangle, we also need to check if the diagonals are congruent (equal in length).

Let's calculate the lengths of the diagonals:

Length of diagonal \(AC = \sqrt{((1 - 0)^2 + (4 - 0)^2) }\)

\(= \sqrt{(1^2 + 4^2) }\)

= √17

Length of diagonal \(OB = \sqrt{((-3 - (-4))^2 + (5 - 1)^2) }\)

\(= \sqrt{(1^2 + 4^2) }\)

= √17.

Since the lengths of both diagonals AC and OB are equal, the parallelogram satisfies this additional property of a rectangle.

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The decimal number 0.616 is \(1\frac{2}{5}\) percent of the number 44.

Let x be the \(1\frac{2}{5} \%\) of 44.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Now, \(1\frac{2}{5} \%\) can be written as \(\frac{7}{5} \%\).

So, \(\frac{7}{5} \%\) of \(44\) \(=x\)

\(0.014\times44=x\)

\(x=0.616\)

Therefore, the decimal number 0.616 is \(1\frac{2}{5}\) percent of the number 44.

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The present value of the loan is found to be  approximately $70.28.

To find the present value of a loan, we can use the formula:

Present Value = Future Value / (1 + (interest rate * time))

Given that the future value is $1,321.17, the interest rate is 7.75%, and the time is 230 days, we can plug in these values into the formula:

Present Value = 1321.17 / (1 + (0.0775 * 230))

Calculating the expression in the parentheses first:

Present Value = 1321.17 / (1 + 17.8075)

Simplifying further:

Present Value = 1321.17 / 18.8075

Evaluating the division:

Present Value ≈ $70.28

Therefore, the present value of the loan is approximately $70.28.

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The best describes the notion of "the significance level of a hypothesis test"is A. The probability of a type I error.

A hypothesis is a proposition whose nature has not been scientifically proven. So that this proposition must be proven empirically with a research process that is in accordance with the appropriate methodology.

Usually, a researcher formulates a hypothesis based on his subjective observations of a problem that is contextual with the issues raised in the research.

Sometimes, researchers also refer to previous research with appropriate problem topics to be proven further in the research process.

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The total distance traveled from 0 ≤ t ≤ 7, considering the position function x(t) = t³ - 6t² - 29, is given as follows:

288.75 units.

The position function for this problem is defined as follows:

x(t) = t³ - 6t² - 29.

The total distance traveled over an interval [a,b] is given by the definite integral of the function x(t) over the interval from x = a to x = b.

The definite integral in this problem is calculated as follows:

I = 0.25t^4 - 2t³ - 29t, from t = 0 to t = 7.

Applying the Fundamental Theorem of Calculus, the total distance is calculated as follows:

I = 0.25(7)^4 - 2(7)³ - 29(7) - (0.25(0)^4 - 2(0)³ - 29(0))

I = 288.75 units.

(which is the absolute value of the result of the definite integral).

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Answer:

x = \(\sqrt{53}\)

Step-by-step explanation:

Using Pythagoras' identity on the upper right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Let the third side be d, then

d² + b² = a² , that is

d² + 8² = 11²

d² + 64 = 121 ( subtract 64 from both sides )

d² = 57

Using Pythagoras' identity on the lower right triangle, then

x² + c² = d²

x² + 2² = 57

x² + 4 = 57 ( subtract 4 from both sides )

x² = 53 ( take the square root of both sides )

x = \(\sqrt{53}\)

Answer:

270

Step-by-step explanation:

so u would take 6 and 45 and multiplay

The value of x in the given equation will be 2/5

From the data,

We have to determine the value of x.

The given equation is: 18x-16=-12x-4

For determining the value of x, we will first shift the like terms on one side of the equation.

So, for solving the value of x we will shift the terms containing x and the constant on both sides of the equation.

So, shifting -12x from the right-hand side of the equation to the left-hand side of the equation,

We will get it as:

18x+12x = -4+16

30x=12

Now for solving the value of x we will shift x from the left side of the equation to the right side of the equation.

So, the value of x will be = 12/30 = 2/5

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The correct question may be:

What is the value of x

18x-16=-12x-4

Enter your answer in the box.

Therefore, the volume of a cycle that is shaped like a cylinder with a height of 150 feet and a radius of 35 feet is 576975 ft^3.

They are asking us to calculate the volume of a cycle, formed by a cylinder (The cycle is shaped like a cylinder).

To calculate the volume, we apply the formula:

We know that the height you have is 150 feet, and the radius is 35 feet, we solve:

V = 3.14 × (35 ft)² × 150 ft

V = 3.14 × 1225 ft² × 150 ft

V = 576975 ft³

Therefore, the volume of a cycle that is shaped like a cylinder with a height of 150 feet and a radius of 35 feet is 576975 ft^3.

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Answer:

Answer: K-2

Step-by-step explanation:

If you think about it’s pretty simple just find the key hints.

Answer: 8 shirts 5 jeans

Step-by-step explanation:

Answer:

30cm

Step-by-step explanation:

0.25 times 120 miles equals 30 cm

Answer:

Step-by-step explanation:

The p-value for a right-tailed test is 0.0096.so the melodic kortholt company should consider changing its current health plan.the standard error for the proportion (SE = sqrt(0.64*(1-0.64)/25) = 0.144).

1. Calculate the proportion of employees dissatisfied (16/25 = 0.64).

2. Calculate the standard error for the proportion (SE = sqrt(0.64*(1-0.64)/25) = 0.144).

3. Calculate the z-score for the test (z = (0.64 - 0.5)/SE = 1.39).

4. Calculate the p-value (p-value = 1 - cdf(z) = 0.0096).

The p-value is an indication of how likely it is that the proportion of employees dissatisfied is significantly different from the expected proportion (in this case, half). The p-value of 0.0096 means that there is only a 0.96% chance that the observed proportion of employees dissatisfied is due to chance alone, and so the melodic kortholt company should consider changing its current health plan.

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Answer:

The amount that James will raise for the charity is $865.

Step-by-step explanation:

Total distance to cover = 5 miles.

He had received $800 in fixed pledges, and raises $13 for every mile he walks. Let the mile he walks be represented by d, and the amount he would raise by A.

So that,

A = $(13d + 800)

But, d = 5 miles.

thus,

A = $(13 x 5 + 800)

   = $865

Thus,

amount he would raise = $865

James would be able to raise $865 for the charity after the walk.

Answer:

A.

Sample 1 mean: 6.375

Sample 2 mean: 6.375

Sample 3 mean: 6.625

B.

Range of sample means: 0.25

C.

The first and last boxes should be checked, as they are true.

Step-by-step explanation:

To calculate the mean you must add all of the numbers together and then divide the sum by the quantity of numbers. Ex: 3+7+8+3+7+9+6+8 = 51.

51/8 = 6.375.

Categorical/nominal  type scale are the variables in a chi-squared test of independence measured.

In a chi-squared test of independence, the variables are measured on a categorical/nominal scale. This means that the variables represent distinct categories or groups, and there is no inherent order or numerical value associated with the categories.

Categorical/nominal variables are qualitative in nature and represent different attributes or characteristics. Examples of categorical/nominal variables include gender (male or female), marital status (single, married, divorced), and type of car (sedan, SUV, truck). Each category is mutually exclusive and does not have any numerical significance.

In a chi-squared test of independence, these categorical variables are used to examine the relationship between two variables. The test assesses whether there is a statistically significant association between the variables, indicating whether they are independent or dependent on each other.

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Here are some suggestions:

The exercise you're doing.

How frequent are you exercising.

The duration of exercise.

Fitness goals.

Location.

Time.

etc

Answer:

Step-by-step explanation:

Aaahhhhh!!! Ja haw has b ha HA n zzz's

Given the expression:

The expression shows the distribution property of addition

So, 6 ( 3 +4 ) = 6 * 7 = 42

Which will give the same result if we distribute 6 over 3 and 4

So, 6 (3) + 6(4) = 18 + 24 =42

Show the following diagram:

As shown, the rectangle on the left side has 3 rows + 4 rows

Which will give us 7 rows when divided to 6 column will give 42 squares

While the rectangles on the right side. we have divided it to 3 rows and 4 rows, each one of them is divided to 6 column which will give us 18 squares and 24 squares the sum of them will give us 42 squares

So, 6 ( 3 + 4 ) = 6(3) + 6 (4)

Answer:

81 inches^3

Step-by-step explanation:

The empty space at the top is

3 inches wide by 9 inches long by (12-9) inches tall

3*9*3 = 81 inches^3

Answer:

x=5,6

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation: