Which values are solutions to the inequality?

​3r≤4r−6​

Select each correct answer.

Responses

r = 4
r = , 4

r = 5
r, = 5

r = 6
r, = 6

r = 7

y = 5 - x. is the linear equation in point-slope form.

Points  (1,4) and (6,-1).

The formula for finding slope from two points (x₁, y₁) and (x₂, y₂) on a line is m = (y₂ - y₁) / (x₂ - x₁).

where , m = slope of the line. x₁ = the x-coordinate of the first point.

m = (-1 - 4) / (6 - 1 ).

m= -1

Substitute the values into the point-slope form,

y − y 1 = m ( x − x 1 ) .

y − 4 = -1 ( x − 1) .

y − 4 =  1 - x.

y = 5 - x.

complete question : Write the linear equation in point-slope form that passes through the given points. (1, 4) and (6, -1).

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The mean age of the combined distribution of both men and women in the course is 20.47 years

What is average/mean ?

The middle number, which is determined by dividing the sum of all the numbers by the total number of numbers, is the average value in mathematics. When determining the average for a set of data, we add up all the values and divide this sum by the total number of values.

Mean age of men , M = 20.7 years

Mean age of Women , W = 20.2 years

Percentage of Men = 54%

Percentage of Women = 46%

Recall, :

Mean, μ = np

The mean age of men in the distribution = (20.7 × 54%) = 11.178 years

The mean age of women in the distribution = (20.2 × 46%) = 9.292 years

The mean age of the combined distribution is :

11.178 + 9.292 = 20.47 years

Therefore, the mean age of the combined distribution is 20.47 years

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By using trigonometry, it can be calculated that-

a)  tan[tex]\theta[/tex] = 5

b)  i) sin(20) = 0.342

   ii) cos(20) = 0.934

  iii) tan(20) = 0.364

What is trigonometry?

Trigonometry shows the relationship between sides and angles of a right angled triangle.

There are six trigonometrical functions. They are [tex]sin\theta, cos\theta, tan\theta, cot\theta, sec\theta, cosec\theta[/tex]

[tex]sin\theta = \frac{perpendicular}{hypotenuse}\\\\cos\theta = \frac{base}{hypotenuse}\\\\tan\theta = \frac{perpendicular}{base}\\\\cot\theta = \frac{base}{perpendicular}\\\\sec\theta = \frac{hypotenuse}{base}\\\\cosec\theta = \frac{hypotenuse}{perpendicular}\\\\[/tex]

Trigonometry is a very important tool in mathematics.

Here, trigonometry will be used

a) Equation of line

y = 5x

Slope of the line = 5

So, tan[tex]\theta[/tex] = 5

b) i) sin(20) = 0.342

   ii) cos(20) = 0.934

  iii) tan(20) = 0.364

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Answer:

8

Step-by-step explanation:

First, divide 16 by 4 to see how many donuts are in each box. This equation gives us 4. Then, multiply 4 by 2 to see get the answer of 8.

Answer: well if there are 16 donuts in 4 boxes that means there are 4 donuts in each box

Step-by-step explanation:

4=4

4+4=8

4+4+4=12

4+4+4+4=16

so your answer is 8

The total amount earned after 3 years at 8% rate is $5580

Interest is the price you pay to borrow money or the cost you charge to lend money.

Given that, $4500 is invested at 8% for 3 year,

SI = PxRxT/100

= 4500x8x3/100

= 1080

Amount = interest + principal

Amount = 1080 + 4500 = 5580

Hence, The total amount earned after 3 years at 8% rate is $5580

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Answer:

(-1.732,0) and (1.732,0)

Step-by-step explanation:

Ignore f(x). The solutions are also called x-intercepts and zeros. So the solutions would be where the parabola crosses the x axis. In my answer ignore the 0 in the coordinates. Just put in the -1.732 and 1.732.

Therefore the percentage of increase in yearly sales is 35% by last year.

Percentage refers to a number that is "out of one hundred." As with fractions and decimals, percentages are used in mathematics to represent subsets of a whole. When utilizing percentages, the total is regarded as being composed of 100 equally sized components. In addition to the abbreviation "pct," which is used less frequently, the symbol "%" is used to denote percentages in numbers.

Here,

the company sold a total of 720,460 pictures  Last year.

This year, they sold 972,621 pictures

therefore first we have to find the difference between the last year and this year pictures sold

it comes out to be,

=>972,621-720,460=252,161

Therefore the increase in percentage this year=

=> 252,161/720460 * 100

=>0.35*100

=> 35%

Therefore the percentage of increase in yearly sales is 35% by last year.

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The required interest earned in the 6 months is $320 and the balance after a year is $8,652.8.

Given that,
John deposits $ 8,000 in a certificate of deposit that pays .8% interest, compounded semi-annually.

Investment is defined as when an individual is spend money on something that returns him or her higher money than the money they or invest.

Here,

Interest earned in the 6 months,
= 8000 [0.08/2]
= $320
Balance after a year,
Amount = principal [1 + rate/n]ⁿ
= 8000[1 + 0.08/2]²
= $8652.8

Thus, the required interest earned in the 6 months is $320 and the balance after a year is $8,652.8.

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Answer:

9

Step-by-step explanation:

3(x-4)=15

Use distributive property with the 3 (multiply 3 times x and 3 times -4)

3x-12=15

Add the 12 to both sides.

3x=27

divide 27 by 3.

x=9

Answer:

Step-by-step explanation:

How do you solve 3(x−4)=15?

3(x − 4) = 15

divide both side by 3

x - 4 = 5

x = 5 + 4

x = 9

----------------

check

3(9 - 4) = 15

9 - 4 = 5

5 = 5

the answer is good

At the significance level, 0.01

p-Value=0.973 > 0.01 which implies fail to reject null hypothesis and no evidence to support the claim.

So, there is no reason to believe that this increase in substrate concentration causes an increase in the mean velocity of the reaction of more than 0.5 micromole per 30 minutes.

We have given that,

A study conducted to see if increasing the substrate concentration has an appreciable effect on the velocity of a chemical reaction.

x₁-bar = 8.8 micromoles

Standaard deviations, s₁= 1.2

x₂-bar = 7.5 ; s₂ = 1.5

n₁ = 12 ; n₂ = 15

significance level = 0.01

Consider the Null hypothesis and alternative hypothesis othesis

H₀ : μ = 0.5

Hₐ : μ > 0.5

Consider,

Pooled Standard Deviation = √(((n₁ - 1)s₁² + (n₂- 1)s₂²)/(n₁ + n₂-2))

plugging all known values

= sqrt(((12-1)(1.2²) + (15 -1)(1.5²))/(12+15-2))

Sp = 1.3761

Now , test statistic :

t =((x₁-bar - x₂-bar) - 0.5) / (Sp×√(1/n₁+ 1/n₂))

substitute all known values we get,

= ((8.8 - 7.5) - 0.5) / (1.3761× sqrt(1/12 + 1/15))

=> t = 1.5

Degree of freedom = n₁+ n₂ - 2

= 12 + 15 - 2

= 25

Now the p-value corresponding to t = 1.5 & df = 25 is 0.073

Here p-value > 0.01 (significance level) thus, we fail to reject null hypothesis.

So there is no enough evidence to support the claim.

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The following numbers will be illustrated in the table:

Those that said yes = 10

Those that said no = 20

Those that said don't know = 10

It should simony be noted that a percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.

Number of pupil = 40

25% said ‘Yes’. This will be:

= 25% × 40.

= 10

50% said ‘No’. This will be:

= 50% × 40

= 20

The rest said ‘Don’t know’. This will be:

= 25% × 40

= 10

In conclusion, those who said yes are 10 while those who said no are 20.

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Answer: x = 110

Step-by-step explanation:

           A 7-sided shape, also known as a septagon, has a total of 900° among its angles. We will set up an equation and solve by combining like terms and using inverse operations.

105° + 150° + 140° + x° + 135° + 125° + 135° = 900°

790° + x° = 900°

x = 110

Step-by-step explanation:

In order to solve this equation, you will need to use the following steps:

First, simplify the left side of the equation by performing the operation of multiplying 0.5 and (2x-8) to get 0.5(2x-8)=x-4.

Then, subtract 3 from both sides of the equation to get x-4=3x+28.

Next, subtract 3x from both sides of the equation to get -3x+x-4=28.

Combine the like terms on the left side of the equation to get -2x-4=28.

Add 4 to both sides of the equation to get -2x=32.

Finally, divide both sides of the equation by -2 to get x=16.

Therefore, the value of x that makes the equation 3-0.5(2x-8)=(3x+28) true is 16.

Answer:

D) AAA

Step-by-step explanation:

The probability of the product of the numbers present on the top faces of all the four six sided dice is equal to 1/108.

As given in the question,

Number of six sided dice to be rolled = 4

Number of outcomes on one dice = 6

Total number of outcomes of 4 dice = 6⁴

                                                            = 1296

Conditions for the product of the numbers of top faces all four dice is prime:

Favourable outcomes are : ( 1, 1, 1,2), (1,1,2,1), (1,2,1,1), (2,1,1,1),

( 1, 1, 1,3), (1,1,3,1), (1,3,1,1), (3,1,1,1),( 1, 1, 1,5), (1,1,5,1), (1,5,1,1), (5,1,1,1)

Total number of favourable outcomes = 12

Required Probability = 12 / 1296

                                  = 1 / 108

Therefore, the probability of the product of all the four numbers on the top faces of the dice is equal to 1/108.

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Therefore, the student would pay $2,994.20 more over the life of the loan than if they paid in cash.

Percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol "%". Percentages are commonly used to express ratios, proportions, and rates. They are used in many areas of everyday life, such as in finance, business, and statistics. Some common examples include: Interest rates on loans and credit cards, Discounts on sale items in stores, Tax rates on income or purchases, Probability of events occurring, Performance metrics in sports and other competitions. Percentages can be converted to decimals or fractions for calculations, and vice versa.

Here,

If the student pays in full with cash, the total cost of the car is $10,000.

If the student chooses to finance the car, the monthly payment is $216.57 and the number of months is 60. The total amount paid over the life of the loan is:

Total paid = Monthly payment * Number of months

= $216.57 * 60

= $12,994.20

The amount paid over the life of the loan is the difference between the total paid and the initial cost of the car:

Amount paid over life of loan = Total paid - Initial cost

= $12,994.20 - $10,000

= $2,994.20

The correct answer is option O: $2,994.20.

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Answer:

8%

Step-by-step explanation:

1. Subtract the larger number from the smaller:

  3780 - 3500 = 280

2. Divide the result from step 1 by the FIRST salary amount:

   280 ÷ 3500 = 0.08  NOTE: Order Matters!!!

3. Change the decimal to a percent

Using Direct Variation, the value of n = 26

An equation is an expression that shows the relationship between two or more numbers and variables.

We need to Write y = kx based on the conditions stated.

Replace with: -18 = k x 3

Turn the sides around: k × 3 = -18

Now Subtract the coefficient of the variable from both sides of the equation:

k = 26 compute the product or quotient.

Write the function's equation as;

y = 26x

Replace with:

n = 26 × 4

n = 104; compute the product or quotient.

Response: n = 26

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The distance between the points A ( -2 , -5 ) and B ( -7 , -7 ) is 5.4 units

What is the distance between two points?

Let the two points be A ( x₁ , y₁ ) and B ( x₂ , y₂ )

The distance from A to B is the same as the distance from B to A

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula to find the distance between the two points is usually given by D = √( ( x₂ – x₁ )² + ( y₂ – y₁ )²)

This formula is used to find the distance between any two points on a coordinate plane or x-y plane

Given data ,

Let the first point be A ( x₁ , y₁ )

The value of A ( x₁ , y₁ ) = A ( -2 , -5 )

Let the second point be B ( x₂ , y₂ )

The value of B ( x₂ , y₂ ) = B ( -7 , -7 )

Now , the distance between the two points is given by the formula

D = √( ( x₂ – x₁ )² + ( y₂ – y₁ )²)

where D is the distance

Substituting the values in the equation , we get

Distance D = √ [ ( -7 - (-2) )² + ( ( -7 - (-5) )² ]

On simplifying the equation , we get

Distance D = √ (-7 + 2 )² + ( -7 + 5 )²

Distance D = √ ( -5 )² + ( -2 )²

So , the value of D is

Distance D = √ ( 25 + 4 )

Distance D = √29 units

So , the approximate value of distance D = 5.39 units

Therefore , the value of Distance D = 5.4 units

Hence ,

The distance between the points A ( -2 , -5 ) and B ( -7 , -7 ) is 5.4 units

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The equation that can be used to find the measure of Angle A is (b) a + 2a - 6 + 111 = 180, a = 25

From the question, we have the following parameters that can be used in our computation:

Angle B = 6 degrees less than twice the measure of angle A

Angle C = 111 degrees

These mean that

b = 2a - 6

c = 111

The sum of angles in a triangle is 180

So, we have

a + 2a - 6 + 111 = 180

In (a), we have

a + 2a - 6 + 111 = 180

Evalate the like terms

3a  = 75

So, we have

a = 25

Hence, the equation is a + 2a - 6 + 111 = 180

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[tex](-2-i)^{2}[/tex] can be simplified by multiplying the integer by itself.

Multiply the integer by itself.

[tex](a+b)^{2} =a^{2} +2ab+b^{2}[/tex]

[tex](-2-i)^{2} =((-2)^{2}+(-i)^{2})[/tex]

Simplify

[tex](-2)^{2} +2.(-2).(-i)+(-i)^{2}[/tex]

[tex]=4+4i-1[/tex]

Make use of the property [tex]i^{2} =-1[/tex] to decrease the imaginary units.

[tex]4+2i+21i+1(-1)[/tex]

Simplify and use the a+bi formula in standard form.

[tex]3+4i[/tex]

A real number is the result of a complex number and its conjugate. This knowledge will be used to remove the complex number from the given expression's denominator.

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The answer to the equation 3(2x-5)=3x is 5, which corresponds to value option C first from list.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows: (Number/variable, Math Operator, Number/variable) is an expression. An expression in mathematics is made up of numbers, variables, and functions. You can think of expressions as being similar to phrases.

Here,

3(2x-5)=3x

6x-15=3x

3x=15

x=5

The solution to the expression 3(2x-5)=3x is 5 that is option C from the given choices of value.

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the integral by reversing the order of integration. Double integrate e^x^2 dxdy= 1/3x e^x^3 + C

The integral can be written as:

∫ ∫ e^x^2 dx dy

∫ ∫ e^x^2 dy dx

Applying the formula for double integrals, the answer is:

∫ e^x^2 dy × ∫ dx

Since the inner integral is a constant, it is simply equal to x.

The answer is therefore:

∫ e^x^2 dy × x = x × ∫ e^x^2 dy

The outer integral is a standard antiderivative, and is equal to:

1/3e^x^3 + C

Therefore, the final answer is:

1/3x e^x^3 + C

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The common ratios of the sequence are 4 and 1/4

From the question, we have the following parameters that can be used in our computation:

Sequence 1

1, 2, 4, 8, 16,...

The common ratio is the quotient of a term and the previous term

Using the first term and the second term, we have

Common ratio = Second term/First term

Substitute the known values in the above equation, so, we have the following representation

Common ratio = 2/1

Evaluate

Common ratio = 2

Sequence 2

Here, we have

48, 12, 4, 2,...

The common ratio is the quotient of a term and the previous term

Using the first term and the second term, we have

Common ratio = Second term/First term

Substitute the known values in the above equation, so, we have the following representation

Common ratio = 12/48

Evaluate

Common ratio = 1/4

Hence, the common ratio is 1/4

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The total number of tests graded by them in 180 minutes (3 hours) will be 90 tests.

Sam ,

6 tests in 24 mins

Therefore ,

1 test in 24/6 = 4 mins

hence ,

no of test in 180 mins

= 180/4 = 45

Ben,

5 tests in 20 mins

Therefore ,

1 test in 20/5 = 4 mins

hence ,

no of test in 180 mins

= 180/4 = 45

Therefore at the end of 180 mins

they would have graded 45 + 45 = 90 tests.

Finding the product of two or more numbers in mathematics is done by multiplying the numbers. It is one of the fundamental operations in mathematics that we perform on a daily basis. Multiplication tables are the main use that is obvious.

In mathematics, the repeated addition of one number in relation to another is represented by the multiplication of two numbers.

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Answer:

4/3 also can be written 4:3

Step-by-step explanation:

Compare numbers in the order that the question asks for them. Order matters.

walkers/cyclers

= 80/60

Simplify.

= 8/6

= 4/3

The ratio of walkers to cyclers is 4/3 (also can be written 4:3)

The probability of odds as a decimal rounded to the nearest hundredth is 0.398.

The probability of odds is given by the formula -

Probability of odds = probability odds ÷ probability (1 + odds)

Probability odds = 0.66

Probability (1 + odds) = 1 + 0.66

Performing addition on Right Hand Side of the equation

Probability (1 + odds) = 1.66

Keep the values in formula to find the probability of odds

Probability of odds = 0.66/1.66

Performing division on Right Hand Side of the equation

Probability of odds = 0.398

Hence, the probability of odds is 0.398.

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The value of p is 18, it can be find out by using concepts of line and slope of a line.

What is the slope of a line?

Slope of line measures its steepness. Mathematically, its calculated as "rise over run".

Slope of a line : (y2 - y1)/(x2-x1)

In the given que,

given graph equation is of line ,

to find slope of graph : we need to differentiate the equation

[tex]\frac{d}{dx}[/tex](3y + 2x = 7) = 3[tex]\frac{dy}{dx}[/tex] + 2 = 0

So, [tex]\frac{dy}{dx}[/tex] = -2/3

We, if any line are perpendicular then

slope of one * slope of two = -1

So, slope of 1 = (-9-6)/(8-p)

                       = -15/(8-p)

     slope of 2 = -2/3

     Now product of both = -15/(8-p) * (-2/3 )

By simplifying all these equation,

we get p = 18.

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Answer:

the rate of change is 3x(slope)

The simplified form of the given expression, (2c7)(9c), is 18c⁸

From the question, we are to simplify the given expression
The given expression is

(2c7)(9c)

First, we will write the expression properly

The given expression written properly is

(2c⁷)(9c)

Now, we will simplify the expression

Simplifying the expression

(2c⁷)(9c)

Multiply

2c⁷ × 9c

Collect like terms

2×9 × c⁷ × c

18 × c⁷⁺¹

18 × c⁸

18c⁸

Hence, the expression is 18c⁸

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