help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Yes the miles driven and the amount of gasoline used can be said to have a causation as well as a correlation.

The strength and direction of a relationship between two or more variables are described by the statistical measure of correlation, which is given as a number. However, a correlation between two variables does not necessarily imply that a change in one variable is the reason for a change in the values of the other.

There is a causal relationship between the two occurrences, which means that causation shows that one event is the outcome of the occurrence of the other event. This concept is also known as cause and effect.

When the amount of gasoline is small, it would cause the miles covered to be just a few miles. Or if there is no gas, then no mile would be covered.

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The equations that are  quadratic in form are:

x4 – 6x2 – 27 = 0

6(2x + 4)2 = (2x + 4) + 2

6x4 = -x2 + 5

The concept that is been used here is quadratic functions which can be written in three ways  :

Where  vertical line x = h and a not equal to zero, Hence we can see that the three selected options above followed the concept that is decribed as the quadratic function.

Therefore, the first, fourth and fifth options are correct.

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Answer:

A, D, E

Step-by-step explanation:

Answer:

  f^-1(x) = √((y +9)/3)

Step-by-step explanation:

You want the inverse function of y = 3x² -9.

The given relation will only have an inverse function if its domain is restricted to values x ≥ 0.

We can find that inverse function by interchanging the variables x and y, then solving for y:

  x = 3y² -9

  x +9 = 3y² . . . . . . . add 9

  (x +9)/3 = y² . . . . . . divide by 3

  y = √((x+9)/3) . . . . . take the square root

The inverse function is f^-1(x) = √((x +9)/3).

[tex]\fbox{90}[/tex]

In order to find 36 is 40% of what number, we will need to use the following formula:

[tex]number\times100/Percent[/tex]

[tex]\frac{36\times100}{40}[/tex]

[tex]36\times100=3,600[/tex]

[tex]3,600\div40[/tex]

[tex]=90[/tex]

The solution of the number in the expression ''40% of a number is 36'' is 90.

Given that,

To find the solution for 40% of that number is 36.

Used the concpet of percentage which stated that,

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating the hundredth part of any quantity is called a percentage.

Let us assume that the solution of the given condition is x.

So, it can be written as,

[tex]40\% \times x = 36[/tex]

[tex]\dfrac{40}{100} \times x = 36[/tex]

Multiply both sides by 100,

[tex]40x = 36 \times 100[/tex]

[tex]40x = 3600[/tex]

Divide both sides by 40,

[tex]x = \dfrac{3600}{40}[/tex]

[tex]x = 90[/tex]

So, the solution for the number is 90.

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What does 3x-19 equal? You can find x without it being an equation

The solution is, the value of x is 6.33.

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,

(3x-19) = 0,

here, we have to make the given expression simple, as we have to find the value of x.

so, we get, by isolating the variable & numbers,

adding 19 on both sides we get,

3x = 19

dividing both sides by 3, we get,

or, x = 19/3

or, x = 6.33

Hence, The solution is, the value of x is 6.33.

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In probability theories, events which can never occur together are classified as "mutually exclusive events" that is option A.

Two events are mutually exclusive or disjoint in logic and probability theory if they cannot both occur at the same time. The results of a single coin toss, which can result in either heads or tails but not both, serve as an obvious illustration. Events that do not take place at the same time are said to be mutually exclusive. For instance, if a coin is tossed, the outcome will either be head or tail; we cannot get both outcomes. Since they do not occur at the same time, such events are also known as disjoint events.

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Answer:

20 gallons

Step-by-step explanation:

2/5 = 4/10

3/10 = 6 gallons

1/10 = 6 : 3= 2 gallons

10/10 = 2 * 10 = 20 gallons

(7) 55 is 181.81% of 100

(8) 22% of 110 is 24.2

(9) 19 is 50% of 38

(10) 25 is 32% of 78.125

(11)  40% of 70 is 28.

(12) 30 is 200% of 60.

What is percent?

A percentage in mathematics is a figure or ratio that is stated as a fraction of 100. The abbreviations "pct.", "pct.", and occasionally "pc" are also used to indicate it, while the percent symbol, "%," is most frequently employed. A % has no dimensions and no standard measurement.

(7) Suppose 55 is x%  of 100.

So,

55x/100 = 100

x/100 = 100/55

x = 1.8181 x 100

x = 181.81%

Therefore, 55 is 181.81% of 100.

(8) Suppose 22% of x is 24.2

So,

x(22)/100 = 24.2

x = 24.2 x 100/22

x = 110

Therefore, 22% of 110 is 24.2

(9) Suppose 19 is 50% of x.

So,

19 = 50(x)/100

x = 19 x 100/50

x = 38

Therefore, 19 is 50% of 38.

(10) Suppose 25 is 32% of x.

So,

25 = 32(x)/100

x = 25 x 100/32

x = 78.125

Therefore, 25 is 32% of 78.125

(11) Suppose 40% of x is 28

So,

40(x)/100 = 28

x = 28 x 100/40

x = 70

Therefore, 40% of 70 is 28.

(12) Suppose 30 is x% of 60

So,

30(x)/100 = 60

x = 60 x 100/30

x = 200

Therefore, 30 is 200% of 60.

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The height of utility poles is B. 12 meters.

The height of the utility pole will be calculated by the formula -

tan theta = perpendicular ÷ base, where theta is the angle of elevation, perpendicular is the height of utility pole and base is the distance from the base of pole to the wire.

Keep the values in formula to find the height of utility pole.

tan 59 = perpendicular ÷ 7

Perpendicular = tan 59 × 7

Perpendicular = 1.66 × 7

Performing multiplication on Right Hand Side of the equation

Perpendicular = 11.65 metres

On rounding off, we get 12 metres.

Thus, the height is B. 12 meters.

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The rent for seven months is 35000 and a tenant hire the room for Rs 55,000 at the same rate of rent for 11 months

The rent of a room for 4 months is Rs 20,000.

The rent of a room for 1 month is Rs 20,000./4

The rent of a room for 1 month is Rs 5000

The rent of a room for 7 months is Rs 5000 x 7

The rent of a room for 7 months is Rs 35000

Now we need to calculate the number of month a tenant hire the room for Rs 55,000 at the same rate of rent

The rent is 5000 for 1 month

The rent will be 55000 for 1/5000 x 55000 = 11 months

Therefore, the rent for seven months is 35000 and a tenant hire the room for Rs 55,000 at the same rate of rent for 11 months

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For 0 < a < b <  1,  a^x < b^x, for x < 0.

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

Given,  0 < a < b < 1.

Assuming a = 0.25 and b = 0.5.

∴ (0.25)^x < (0.5)^x for x > 0, again assuming x to be 2.

∴ (0.25)^2 = 0.625 and (0.5)^2 = 0.25.

Now, 0.625 > 0.25 which is not satisfying a^x < b^x, for x > 0.

Therefore, if 0 < a < b <  1, then a^x < b^x, for x < 0.

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The amount of weight of bag increase is 4 pounds. The percent of increase is 13,33 %. The result is obtained by calculating the change of two numbers.

A number can increase or decrease to another number. This change can be counted by subtracting the first number from the second number. If the result is positive, it is an increase. If the result is negative, it is a decrease.

The percent of change would be the ratio of the amount of change to first number times 100.

Given the first figure of bag is 26 pounds and the last figure is 30 pounds.

The amount of increase is subtracting 26 from 30.

30 - 26 = 4 pounds.

The percent of increase is

[tex]= \frac{4}{30} \times 100[/tex] %

[tex]= 0.1333 \times 100[/tex] %

[tex]= 13.33[/tex] %

Hence, the amount of weight of bag increase is 4 pounds. The percent of increase is 13,33 %.

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Each of Aaron's pals receives nine (9) rocks in total.

The question states that,

Aaron collects a total of 54 rocks at the beach.

He wants to give an equal number of rocks to six (6) of his friends.

It is given that let 'r' be the number of rocks each of his friends gets.

The required equation is;

Rock's Aaron's friends get,

→ 6*r = 54

   r = 54/6

   r = 9

The total number of rocks each of Aaron's friends get is 9.

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Answer:

1.) 150/512 in.  

2.) 64/125 in.

Step-by-step explanation:

1.) V = l x w x h                That's the formula to find the volume of a rectangle

V = 6/8 x 5/8 x 5/8 in.    Plug in the numbers

V = 150/512 in.                Multiply

V = 75/256 in.                 Simplify

Since you're asked to not reduce don't write this answer. I only put it to show that it can be simplified.

2.) V = l^3                       This is the formula to find the volume of a cube

V = (4/5)^3 in.                 Plug in the numbers

V = 64/125 in.                 Miltuply

Only function (a) is one-to-one.

acc to our question-

If every element of the range of the function corresponds to exactly one element of the domain, then the function is called one-to-one.

The elements of a function are

A = {a,b,c,d}

Therefore, this function is one-to-one.

(b).f (a) = b, f (b) = b, f (c) = d, f (d) = c.

Here, the value of function is b for x=a and x=b. For two domains the functions has same range.

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Answer:

solve for u= 6v/7

solve for v= 7u/6

Step-by-step explanation:

Naoki shifted the base of ladder by 14 feet as the updated distance is 39 feet and old distance was 25 feet.

Trigonometry is the branch of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six common trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and abbreviations (csc). Finding the elements of vectors, modeling the mechanics of waves (both electromagnetic and physical), summarizing the strength of fields, and using dot and cross products are all physics applications of trigonometry. You can use trigonometry quite a bit in projectile motion.

Here,

The length of ladder= 65 foot

It rest at a wall at height of 60 foot.

So distance of foot of ladder from wall,

=√(65²-60²)

=√625

=25 foot

Now, as the ladder is shifted, it rest on the wall at height of 52 foot.

=√(65²-52²)

=√1521

=39 foot

Shift in the base of ladder,

=39-25

=14 foot

As the updated distance is 39 feet and the previous distance was 25 feet, Naoki moved the base of the ladder up by 14 feet.

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The proportional relationship between the cost and weight is given as y = 0.89x.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The absolute expense for clothing administration, in dollars, relies upon the heaviness of the clothing, in pounds. This relationship is corresponding, as it costs $22.25 for 25 pounds of clothing and $36.49 for 41 pounds of clothing.

The equations are given below.

22.25 = 25m + c          ...1

36.49 = 41m + c           ...2

From equations 1 and 2, then we have

41m - 25m = 36.49 - 22.25

16m = 14.24

m = 0.89

Then the value of c will be given as,

22.25 = 25 (0.89) + c

c = 0

The proportional relationship between the cost and weight is given as y = 0.89x.

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"We are 95% confident that the mean sodium content for all beef hot dogs is between 353.2 and 449.1 mg." is the correct statement.

The true parameter must be properly and contextually stated.

We are researching confidence intervals for population means rather than for particular observations. The parameter is, to put it in plain English, the average sodium content of all beef hot dogs. The phrase "We are 95% confident" would be a better translation.

Thus the correct statement is as mentioned above.

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The length of the table is 1.51 meters.

Allan is measuring his dining room table to make a tablecloth. The table is 0.45 meter longer than it is wide. The width of the table is 1.06 meter. We need to find out the length of the table.

Let the length of the table be represented by the variable "L". In the context of a mathematical problem or experiment, a variable is a quantity that may vary. The length of the table is the sum of the width of the table and the difference between the two quantities.

L = 1.06 + 0.45

L = 1.51

Hence, the length of the table is 1.51 meters.

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If the two events described in the questions are independent events, the probability of both happening next year is 28.67%.

Independent events refer to events whose occurrence is not interdependent. In other words, if the probability of occurrence of event A is not influenced by the probability of occurrence of event B, then A and B are independent events. Mathematically, independent events are represented as P(A│B) and is calculated by multiplying the individual probabilities of the two events. The formula of probability of two independent events is:

P(A│B) = P(A)*P(B)

Hence,

P(A│B) = 0.47*0.61

P(A│B) = 0.47*0.61

P(A│B) = 0.2867

The probability of two events happening next year is 28.67%.

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Answer:

the answer is 1.4N/kg

The length of the chord used in this situation is approximately 40.54 ft.

To find the length of the chord used in the situation, we can use the formula for the chord length in a circular arc:

Chord length = 2√(r² - (r - h)²)

where r is the radius of the arc and h is the measure of the middle ordinate.

Given that the radius of the arc is 70 ft and the measure of the middle ordinate is 6 ft, we can substitute these values into the formula:

Chord length = 2√(70² - (70 - 6)²)

Chord length = 2√(4900 - 4489)

Chord length = 2√(411)

Chord length ≈ 2 * 20.27

Chord length ≈ 40.54 ft

Therefore, the length of the chord used in this situation is approximately 40.54 ft.

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The equation that model the total amount of money Dominique spends on travel each day if her route to work is x miles long is 3 + 1.25x = 11.75.

An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.

In this case, Dominique uses a car service company to travel to work and back home.

The company charges a ride fee of $3.00 and $1.25 per mile. The appropriate equation will be:

3 + 1.25(x) = 11.75

where x = number of miles

3 + 1.25(x) = 11.75

3 + 1.25x = 11.75

This illustrates the equation.

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64 unique extensions are there with no repeated digits.

Combinations are decisions that are made by choosing some or all of a group of objects, regardless of how they are arranged.

For the 3-digit area code, the first digit can be any digit from 2 through 9, and each of the two digits that follow can be any digit from 0 through 9. That's a total of 8 × 10 × 10 = 800 different combinations.

Given:

A school district telephone system has three-digit extensions.

So,  first digit cannot be zero then we have possibility of total 8 digits.

and the last number is a nine.

unique extensions are there with no repeated digits

= 8 x 8 x 1

= 64

Hence, 64 unique extensions are there with no repeated digits.

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Answer:

[tex]x=\dfrac{\pi }{3}+2\pi n, \quad x=\dfrac{5\pi }{3}+2\pi n,\quad x=2\pi n,\quad x=\pi+2\pi n[/tex]

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{6.5 cm}\underline{Trigonometric Double Angle Identities}\\\\$\sin (A \pm B)=\sin A \cos B \pm \cos A \sin B$\\\\$\cos (A \pm B)=\cos A \cos B \mp \sin A \sin B$\\\\$\tan (A \pm B)=\dfrac{\tan A \pm \tan B}{1 \mp \tan A \tan B}$\\\end{minipage}}[/tex]

Given equation:

[tex]\tan (x + \pi) + \sin(x + \pi) + \sin(x - \pi)=0[/tex]

Simplify using the double angle identities:

[tex]\implies \dfrac{\tan x + \tan \pi}{1 -\tan x \tan \pi} + \sin x \cos \pi+\cos x \sin \pi + \sin x \cos \pi -\cos x \sin \pi=0[/tex]

[tex]\implies \dfrac{\tan x + 0}{1 -\tan x(0)} + \sin x (-1)+\cos x (0) + \sin x(-1) -\cos x (0)=0[/tex]

[tex]\implies \dfrac{\tan x}{1} -\sin x - \sin x=0[/tex]

[tex]\implies \tan x-2\sin x =0[/tex]

Use the tan identity to rewrite tan(x) in terms of sin(x) and cos(x):

[tex]\implies \dfrac{\sin x}{ \cos x}-2\sin x=0[/tex]

Multiply both sides by cos(x):

[tex]\implies \dfrac{\sin x\cos x}{ \cos x}-2\sin x\cos x=0(\cos x)[/tex]

[tex]\implies \sin x-2\sin x \cos x=0[/tex]

Factor out sin(x) from the left side of the equation:

[tex]\implies \sin x(1-2 \cos x)=0[/tex]

Apply the zero-product property.

Case 1

[tex]\implies \sin x=0[/tex]

[tex]\implies x=\sin^{-1}(0)[/tex]

[tex]\implies x=2\pi n, \; \pi+2\pi n[/tex]

Case 2

[tex]\implies 1-2 \cos x=0[/tex]

[tex]\implies 1=2 \cos x[/tex]

[tex]\implies \cos x=\dfrac{1}{2}[/tex]

[tex]\implies x= \cos ^{-1} \left(\dfrac{1}{2}\right)[/tex]

[tex]\implies x=\dfrac{\pi }{3}+2\pi n, \;\dfrac{5\pi }{3}+2\pi n[/tex]

Solution

[tex]x=\dfrac{\pi }{3}+2\pi n, \quad x=\dfrac{5\pi }{3}+2\pi n,\quad x=2\pi n,\quad x=\pi+2\pi n[/tex]

The equation, y = 3x - 15, written in standard form is 3x - y = 15

From the question, we are to write the given equation is standard form.

The given equation is

y = 3x - 15

The standard form of a linear equation is

Ax + By = C

Where A, B, and C are constants

x and y are variables

Now, we will write the given equation is the standard form of a linear equation.

y = 3x - 15

Substract y from both sides

y - y = 3x - y - 15

0 = 3x - y - 15

That is,

3x - y - 15 = 0

Add 15 to both sides of the equation

3x - y -15 + 15 = 0 + 15

3x - y = 15

Hence, the standard form is 3x - y = 15

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