anyone can answer this ill give brainliest

Part A

x = some unknown number

2x = doubling that number

2x+11 = adding on eleven

=============================================================

Part B

If we knew what x was, then we can compute 2x+11 using the order of operations PEMDAS. Because x is unknown, we follow PEMDAS in reverse to isolate x.

So we'll undo the addition first by subtracting 11 from both sides. Then we undo the multiplication by dividing both sides by 2.

2x+11 = 25

2x+11-11 = 25-11 ..... subtract 11 from both sides

2x = 14

2x/2 = 14/2 ...... divide both sides by 2

x = 7

The number the person thought of was 7. Double 7 to get 14. Add on eleven to get 14+11 = 25.

Answer: 12.263 sqm

Step-by-step explanation:

1 square meter = 10.7639 square feet

132 square feet in meters would therefore be;

1 sqm : 10.7639 sqf

x sqm: 132 sqf

10.7639x sqm = 132sqf

x sqm = 132 / 10.7639

= 12.263 sqm

To find the z-score for a sales associate who earns $37,500, we can use the formula:

z = (x - μ) / σ

Where:

x is the value we want to convert to a z-score (in this case, $37,500),

μ is the mean of the distribution (in this case, $32,500), and

σ is the standard deviation of the distribution (in this case, $2,500).

Substituting the given values into the formula, we have:

z = (37,500 - 32,500) / 2,500

z = 5,000 / 2,500

z = 2

Therefore, the z-score for a sales associate who earns $37,500 is 2.

To learn more about mean visit;

brainly.com/question/31101410

#SPJ11

The z-score for a sales associate earning $37,500 in a system where the mean salary is $32,500 and the standard deviation is $2,500 has a z-score of 2. This score indicates that the associate's salary is two standard deviations above the mean.

The z-score represents how many standard deviations a value is from the mean. In this case, the value is the salary of a sales associate, the mean is the average salary, and the standard deviation is the average variation in salaries.

We calculate the z-score by subtracting the mean from the value and dividing by the standard deviation, like so:

Z = (Value - Mean) / Standard Deviation

So, the z-score for an associate earning $37,500 would be:

Z = ($37,500 - $32,500) / $2,500

This gives us a z-score of +2, indicating that a salary of $37,500 is two standard deviations above mean.

https://brainly.com/question/34836468

#SPJ12

Answer:

-112x²y

Step-by-step explanation:

The expression \(-2xy 4 (7x^2 )\) can be simplified as \(-112x^2y\)

A finite collection of symbols that is well-formed in accordance with context-dependent principles is called an expression or a mathematical expression. In mathematics, a statement is considered to be an expression if it contains at least two different integers (known or unknown) and at least one operation.

Given that \(-2xy 4 (7x^2 )\)

Then we can see that there are two x, then we can multiply together, then multiply 4 and 7 together as;

\(-112x^2y\)

Learn more about expression at;

https://brainly.com/question/1859113

#SPJ1

Step-by-step explanation:

\(( {7}^{5} )( {7}^{4} )\)

\( {7}^{5 + 4} \)

\( {7}^{9} \)

is the answer

hope this helps you

Answer:

A. \(\frac{c}{11} *7-48\)

Step-by-step explanation:

Inequality can be used to determine x, the greatest number of 120-kilogram crates that can be loaded onto the shipping container is  8000 + 120C <= 27500

An inequality is a relationship that allows us to contrast two or more mathematical expressions.

Knowing that;

Each carton weighs 120 kg.

The container's maximum weight when loaded is 27500 kg.

Weight of the container as it is currently loaded: 8000 kg

Now that we have merged, we have;

Solution

because 8000 grams have already been loaded kilograms

into the container

each crate weighs 120 kilograms.

so 8000 + 120C <= 27500

To learn more about inequality refer to:

https://brainly.com/question/28862943

#SPJ1

Answer:

(0,-2)

Step-by-step explanation:

The following are the zeros for the function h (x) = x2 + 3x - 8: - x= -4 and x=2.

Given a collection of inputs X (domain) and a set of potential outputs Y (codomain), a function is more technically defined as a set of ordered pairings (x,y) where xX and yY with the caveat that there can only be one ordered pair with the same value of x. The function notation f:XY can be used to express that f is a function from X to Y.

The function's zero is a value of x that makes it equal to zero. In other words, the equation f(x) = 0 leads to a zero.

By putting h(x) equal to zero and figuring out x, we may determine the zeroes for the function h(x) = x2 + 3x - 8.

h(x) = x² + 3x - 8 = 0

We may factor the left side of the equation to find x:

x² + 3x - 8 = (x-2)(x+4) = 0

We set each factor to zero and solve for x to discover the zeroes:

x-2 = 0 or x+4 = 0

x = 2 or x = -4

Consequently, the function's zeros are x = 2 and x = -4.

So, A is the right response. x = -4 and x = 2

To know more about functions visit:

https://brainly.com/question/29120892

#SPJ1

The complete question is

What are the zeros of the function h (x) = x² + 3x - 8?

A. x = -4 and x = -2

B. x= -8 and x = 2

C. x = -2 and x = 8

D. x = 2 and x = 8

|x−47| = 5 ,Least percentage point = 42  Greatest percentage point = 52

What is margin of error?

The margin of error could be a data point expressing the quantity of sampling error within the results of a survey.

Given the following :

Percentage of voters in support of additional restrictions on teenage drivers = 47%

Margin of Error in polls = ±5 % points

The absolute value inequality to find the lowest and greatest percent of points :

X = mid value

47% = estimated percentage

±5= error margin

Hence,

|mid value - estimate| = error margin

|x−47| = 5

Hence,

-5+ 47 = 42

5 + 47 = 52

42 ≤ x ≤ 52

Hence,

Least percentage point = 42

Greatest percentage point = 52

to know more about percentage , visit:

https://brainly.com/question/843074

#SPJ1

Answer:

Horizontal ; 4 units right

Vertical ; 5 units down

Step-by-step explanation:

Here, we want to describe a transformation

From what we have, we can see that while 4 was added to the x value, 5 was subtracted from the whole

The 4 added shows a translation to  the right of the x-axis while the -5 added is a downward translation on the y axis

So we have our answer as;

horizontal translation of 4 units right and vertical translation of 5 units down

The ball will reach its maximum height after approximately 1.25 seconds. This is obtained by finding the time at which the quadratic function \(h(t) = 40t - 16t^2\) reaches its vertex. The positive solution of t = 1.25 seconds represents the time when the ball reaches its highest point.

To find the time when the ball reaches its maximum height, we can analyze the function \(h(t) = 40t - 16t^2\). The ball's height is given by this quadratic function, where t represents time in seconds.

To determine the maximum height, we need to find the vertex of the parabolic function. The vertex occurs at the axis of symmetry, which is given by the formula t = -b / (2a) for a quadratic function in the form of \(ax^2 + bx + c\).

In our case, a = -16 and b = 40. Plugging these values into the formula, we get \(t = \frac{-40}{2*(-16)} = \frac{-40}{-32} = \frac54 = 1.25\) seconds.

However, since time cannot be negative in this context, we discard the negative value and consider the positive value, which is approximately 1.25 seconds.

To learn more about Quadratic functions, visit:

https://brainly.com/question/17482667

#SPJ11

Answer:

-10

Step-by-step explanation:

Answer:

point a i did the test and got it right

Step-by-step explanation:

Answer:

You didn't send the pool dimensions ill answer it when u do

Step-by-step explanation:

Answer:

7.) 0

8.) 15

9.) 71

12.) 4 / 15

Step-by-step explanation:

7.) 4 + 2 * 12 ÷ 6 - 8 =

Evaluate using PEMDAS

First do parenthesis: There are no parenthesis so we go to the next step

Next we do exponents: There are no exponents so we go to the next step

Next we do multiplication and division ( going left to right )

2 * 12 = 24

24 ÷ 6 = 4

we now have 4 + 4 - 8

The last step is addition in subtraction ( left to right )

4 + 4 = 8

8 - 8 = 0

So 4 + 2 * 12 ÷ 6 - 8 = 0

8.) 9 ÷ 3 + 6 * 2

Evaluate using PEMDAS

There are no parenthesis or exponents so we go to the third step

The third step is multiplication and division ( going left to right )

9 ÷ 3 = 3

6 * 2 = 12

3 + 12 = 15

9 ÷ 3 + 6 * 2 = 15

9.) 3 + 4 - 6 + 2 * 35

Evaluate using PEMDAS

No exponents or parenthesis so go to next step

Multiplication and division first

2 * 35 = 70

3 + 4 -  6 + 70

Addition and subtraction next ( going left to right )

3 + 4 = 7

7 - 6 = 1

70 + 1 = 71

3 + 4 - 6 + 2 * 35 = 71

Answer:

u nub

Step-by-step explanation:

Answer:

56.7%

Step-by-step explanation:

To find the percentage of girls in the class, we need to subtract the number of boys (13) from the total number of students (30) and then divide by the total number of students, and then multiply by 100 to convert it to a percentage:

Number of girls = Total number of students - Number of boys = 30 - 13 = 17

Percentage of girls = (Number of girls / Total number of students) x 100%

Percentage of girls = (17 / 30) x 100%

Percentage of girls = 56.7%

Therefore, 56.7% of the students in the class are girls.

(I would appreciate a Brainliest rating if this helped you)

Answer:

56.67%

(For step by step check the image because it won't let me send it)

The resulting vector, known as the resultant vector, is the vector that starts from the origin and ends at the head of the second vector.

For constructing a vector using the rule for addition, we need to follow the following steps:

1. Identifying the magnitudes and directions of the vectors involved.
2. Placing the tail of the first vector at the origin (0,0) of a coordinate system.
3. Using the magnitude of the first vector to draw an arrow in the direction indicated.
4. Placing the tail of the second vector at the head of the first vector.
5. Using the magnitude and direction of the second vector to draw an arrow starting from the head of the first vector.

Learn more about Vector from the given link!

https://brainly.com/question/17157624

#SPJ11

Answer:

U = 48

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

x+21 + x+23 + x+61 = 180

Combine like terms

3x + 105 = 180

Subtract 105 from each side

3x+105-105 = 180-105

3x = 75

Divide by 3

3x/3 = 75/3

x = 25

We want angle u

x+23

25+23

48

Answer:

48

Step-by-step explanation:

All interior angles of a triangle add up to 180.

\((x+21)+(x+23)+(x+61)=180\)

If you wanted to you could subtract 21, 23, and 61 from 180.

\((x+21)+(x+23)+(x+61)=180\\x+21+x+23+x+61=180\\3x+105=180\\3x=75\)

Then take then number that's left and divide it by three, since they are all in addition to the same variable.

\(\frac{3x}{3}=\frac{75}{3}\\ x=25\)

Then add 25 to 23 which is 48.

Usually negative numbers are in parentheses so people don't think that it is subtraction.

The correct answer is the negative sign indicates that the number or term inside the parenthesis is multiplied by a negative sign.

When a negative number is placed within parentheses, it typically indicates that the negative sign applies to the entire number or expression inside the parentheses.

In other words, it's a way to ensure that the negative sign is associated with the value inside the parentheses rather than being treated as an operator.

For example:

(-3) means negative three, which is the same as 3 but with a negative sign.

-(5 + 2) means the negative of the sum of 5 and 2, which is -7.

-x means the negative of the variable x.

In mathematical expressions, using parentheses to enclose a negative number ensures clarity and avoids ambiguity in the interpretation of the expression.

Learn more about Parentheses here:

https://brainly.com/question/4637257

#SPJ3

The surface area οf the larger sοlid is apprοximately 99 cm².

If twο sοlids are mathematically similar, then their cοrrespοnding dimensiοns are prοpοrtiοnal.

Let the dimensiοns οf the larger sοlid be k times that οf the smaller sοlid. Then, we have:

Vοlume οf smaller sοlid \(= (side length)^3 = 24 cm^3\)

Vοlume οf larger sοlid \(= k^3 * (side length)^3 = 81 cm^3\)

By dividing the secοnd equatiοn by the first, we get:

\(k^3 = 81/24 = 3.375\)

When we take the cube rοοt οf bοth sides, we get:

k ≈ 1.5

Sο, the dimensiοns οf the larger sοlid are 1.5 times that οf the smaller sοlid.

Let A just be the surface-area οf the smaller sοlid. Then, the surface area οf the larger sοlid is given by:

\(A' = (1.5)^2 * A = 2.25A\)

Substituting \(A = 44 cm^2\), we get:

\(A' = 2.25 * 44 cm^2 \approx 99 cm^2\)

Therefοre, the surface area οf the larger sοlid is apprοximately 99 cm².

To learn more about surface area, visit:

https://brainly.com/question/27519050

#SPJ9

The algebraic expression -9-4x-7 can be simplified by combining like terms to obtain the simplified form -4x-16.  

To simplify the expression -9-4x-7, we combine the like terms, which are terms that have the same variable and exponent. In this case, the only like term is the constant term (-9) and the constant term (-7). We can add these terms together to get -16.

The expression -4x does not have any like terms to combine with, so it remains unchanged.

Combining the simplified constant term -16 with the unchanged term -4x, we have the simplified form -4x-16.

To further explain, we can think of the original expression as (-9) + (-4x) + (-7). When we combine the constant terms -9 and -7, we get -16. The term -4x does not change since there are no other terms with the same variable.

To summarize, the simplified form of the algebraic expression -9-4x-7 is -4x-16.

To know more about algebraic expressions click here: brainly.com/question/28884894

#SPJ11

Answer:

That is correct

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

I added the numbers yw