Counterexamples
Instructions: Show that the conjecture is false by finding a counterexample. Change the value of n below in order to make it a counterexample.

"For every integer n, n3 is positive."

n=1

n=−3

n=2

n=5

n= Answer

Answer: A. Cubic

Step-by-step explanation:

The value of tan33° is 11/20.

A triangle with an angle measure of 90° is called a right triangle.

Given that, tan(x) = (length of the opposite side)/ (length of an adjacent side)

Therefore, for the given triangle, it follows:

tan33° = 11/20

Hence, the value of tan33° is 11/20.

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The most appropriate choice for trigonometric function will be given by

Greatest value = 2, least value = -3

What are trigonometric functions?

Trigonometric functions are those functions which shows the relationship between side and angle of a right angled triangle.

There are six trigonometric functions-

[tex]sin\theta, cos\theta, tan\theta, cot\theta, sec\theta, cosec\theta[/tex]

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

Here,

5 ii)

[tex]2 sin^{2} x - 3cos^{2}x \\2(1-cos^2x)-3cos^2x\\2 - 2cos^2x -3cos^2x\\2 - 5cos^2x\\[/tex]

Now,

[tex]0\leq cos^{2}x \leq 1\\ -1 \leq -cos^2x\leq 0\\-5\leq -5cos^2x\leq 0\\-5+2\leq 2-5cos^2x\leq 0+2\\-3\leq 2-5cos^2x\leq 2[/tex]

Greatest value = 2, least value = -3

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The new coordinates of the vertices a'b'c' are (-5, -2.5), (2.5, 5) and (5, -10) respectively of the triangle.

For the given question;

The vertices  of the triangle has the coordinates of a, b and c;

The dilation of the abc is factored with the scale factor of 2.5.

Thus, to find the new coordinates of a'b'c' multiply each value with 2.5.

Thus, the new coordinates of the vertices a'b'c' are (-5, -2.5), (2.5, 5) and (5, -10) respectively.

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Answer:

percentage of boys:

6/20x100

=30%

percentage of girls:

14/20x100

=70%

Answer:

Step-by-step explanation:

70%

The quadratic equation is [tex]9x^2-2/3x-\frac{1+2\sqrt{2}}{3}[/tex]

Quadratic Equation:

A quadratic function is a function of degree two.

The general form of the quadratic equation is as follows:

x² + (sum of roots)x + Product of roots.

Given,

Here we have the roots,

[tex]\frac{-1-\sqrt{2} }{3} ,\frac{-1+\sqrt{2} }{3}[/tex]

And the coefficient with x² is equal to 9.

Through the given details we have to find the quadratic equation.

To find the equation we have to identify the sum of roots and the product of roots.

So, the sum of roots is,

[tex]= > \frac{-1-\sqrt{2} }{3} +\frac{-1+\sqrt{2} }{3}[/tex]

[tex]= > \frac{-1 }{3} +\frac{-1 }{3}\\= > \frac{-2}{3}[/tex]

Now the product of roots is,

[tex]= > \frac{-1-\sqrt{2} }{3} \times\frac{-1+\sqrt{2} }{3}[/tex]

[tex]= > \frac{1-\sqrt{2}-\sqrt{2}-2 }{3}=\frac{-1-2\sqrt{2} }{3}[/tex]

So, the quadratic equation is,

[tex]= > 9x^2-2/3x-\frac{1+2\sqrt{2}}{3}[/tex]

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Consequently, the combined perimeter of the square and rectangle in the previous diagram is 36 cm.

We combine each side's value.

For instance, the typical solution is to multiply the length by two and the width by two, then add the results to determine the perimeter if the quadrilateral is a square, rectangle, parallelogram, or any other shape with two equal opposite sides and angles.

In the given diagram, we can infer that

the diagram is a combination of a square and a rectangle

so for the rectangle:

the perimeter is =2(l+b)

                          =2(8+5)

                          =26 cm

so for the square :
the perimeter is =2(side +side):

                          =2(5+5)

                          =20cm

to get the total perimeter ,we will add both the perimeters but subtract one side (5cm) because it is common in both the quadrilaterals twice:

so we get:

20+26-10=36cm

Therefore,  the perimeter of the preceding diagram of a square and a rectangle  combined is 36cm.

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Using the numeric value of functions, it is found that the pole vaulter will run 50 feet farther in 2 seconds.

To find the numeric value of a function, we replace each instance of the variable by the desired value.

The formula for the velocity is given as;

v=8√h

where h is the height.

we have the height is of h = 9.8,

hence:

v = 8√(9.8) = 25 feet per second.

The holder was running at the rate of 25 feet per second.

Then, within two seconds, the distance is given as;

d = 25 x 2 = 50 feet.

Hence, The pole vaulter will run 50 feet farther in 2 seconds.

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The mean of the sample means of the given data is 40

The provided sample size is 100, with a standard deviation 20and mean of the as 25.

Mean of the population, μ = 25

The standard deviation of the population, σ = 20.

Size of the sample, n = 100

Let X be the mean of the sample means,

The formula for the sample mean is

X = μ

where μ, as we know is the mean of the population

By substituting the value in the above equation, we get

X = 40

Therefore, we get the mean of the sample means is 40

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0.5kg per foot

Answer:

Step-by-step explanation:

Based on the commission percentage that William makes when he sells goods at the electronics store, the amount that William made in commission from the computer is $ 45. 84.

Commission made on goods and services are a percentage that is paid to sales people when they make a certain number of sales. The commission is based on the amount that the good or service in question is sold for.

The commission to William here can be found by the formula:

= Percentage made for commission on everything sold x Amount that the computer sold for

Solving for the commission to William gives:

= 6 % x 764

= 0. 06 x 764

= $ 45.84

In conclusion, the commission that William made from the sale of the computer which was valued at $ 764 is $ 45.84.

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Answer:

45. 84

Step-by-step explanation:

Based on the commission percentage that William makes when he sells goods at the electronics store, the amount that William made in commission from the computer is $ 45. 84.How to find the money made from commission?Commission made on goods and services are a percentage that is paid to sales people when they make a certain number of sales. The commission is based on the amount that the good or service in question is sold for. The commission to William here can be found by the formula:= Percentage made for commission on everything sold x Amount that the computer sold for Solving for the commission to William gives:= 6 % x 764 = 0. 06 x 764= $ 45.84

Answer:

1/3

Step-by-step explanation:

the is slope of this graph is 1_3

Answer:

1/3

Plssssss mark as brainliest

Step-by-step explanation:

To find the slope of a graph you need to look for 2 pairs of accurate xand y values

First value which is accurate is:

x = 1 and y= 4

Second pair which is accurate is :

x = 7 and y = 6

Gradient = rise/run = y2-y1/x2-x1

im taking y2 as 6, x2 as 7, y1 as 4 and x1 as1

6-4/7-1

=2/6

=1/3

Answer:

Mrs. Williams made her homemade chicken soup. She made 6 3/4 cups of soup. Each serving size was 1 1/8 cup. = 6

Step-by-step explanation:

this picture below shows how to solve the problem step by step hope this really helps !

Answer: 9.52

Step-by-step explanation: I looked it up but you would do 17 divided by 56 and get a decimal and then move the decimal point over 2 spaces to the right and then you have your answer.

Hope it helped

Answer:

2x+20≥84

2x≥64

x≥32

Step-by-step explanation:

Answer:

z = 9

Step-by-step explanation:

X is not a valve is it a multiplication sign. I believe that you are looking for the value of z.

To find the value of z you simply have to count how many times you moved the decimal point. In this case you move the decimal point 9 times. Since you move it to the left z is positive. Z=9  

Answer:

64.9

Step-by-step explanation:

Since 7 is equal to or above 5 it will add +1 to the 8

Answer:

64.87 rounded to the nearest tenth is 64.9 since it is past 5 :)

Step-by-step explanation:

Answer:

20 inches

Step-by-step explanation:

7x2=14

3x2=6

14+6=20

The transformation that takes place on the parent function ( f (x) = log (x) ) to achieve the graph of g(x)=log(-3x+9)+4  can be described as a reflection across the y-axis. Then you horizontally shrink a factor of three; shift three units to the right, and shift four units upwards.

Step 1: The parent graph is to be translated 3 units to the right side to achieve: y = log (x-3)

2. Shrink the graph by a factor of three by multiplying x by three:

⇒ y = log 3(x-3)

3. Reflect the function y = log 3(x-3) across line -3 = x to achieve:
y = -3(x-3)

4. Translate the function y = log 1-3(x-3) four units upwards to achieve

y = log (-3 + 9) +4

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Answer:

Step-by-step explanation:

5 1/4 feet above sea level minus 15 1/2 will equal the distance the diver is below sea level.

5 1/4 - 15 1/2 = 10 1/4 feet below sea level

Answer:

width=x

length=5x

area= 300ft2

area=lxb

300=5x(x)

300=5x^2

x^2=60

x=7.74

7.74(5)=38.7

dimensions are 38.7ft by 7.74 ft

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Step-by-step explanation:

the area of a rectangle is

length × width = 300 ft²

length = width + 5

(width + 5) × width = 300

width² + 5×width = 300

width² + 5×width - 300 = 0

the general solution to such a quadratic equation is

width = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 5

c = -300

width = (-5 ± sqrt(5² - 4×1×-300))/(2×1) =

= (-5 ± sqrt(25 + 1200))/2 =

= (-5 ± sqrt(1225))/2 = (-5 ± 35)/2

width1 = (-5 + 35)/2 = 30/2 = 15 ft

width2 = (-5 - 35)/2 = -40/2 = -20 ft

negative lengths for an actual object don't make sense, so width = 15 ft is our solution.

length = width + 5 = 15 + 5 = 20 ft

The greatest possible integer value for the mean is calculated as 59.

Assume that the three piles contain A,B,C rocks, that mean of pile C is x, and the mean of a combination of B and C is y. We will maximize y if the following conditions are met:

40A + 50B = 43(A+B)

40A + xC = 44(A+C)

50B + xC = y(B+C)

that can be reorganized as follows:

7B = 3A

(x - 44)C = 4A

(x - y)C = (y - 50)B

Let's see if y=59 is possible. If so, it's already the solution. Otherwise, there will be an inconsistency. As a result, the third equation is as follows:

(x - 59)C = 9B.

So, 15C = (x-44)C - (x-59)C = 4A - 9B

45C = 4(3A) - 27B = 28B - 27B,

105C = 28A-9(7B) = A

Thus,

A = 105C, B = 45C, Put the values

x = 4(105) + 44 = 464, That gives consistent solution.

Therefore, the value of y is found to be 59, the greatest possible integer value for the mean.

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The following are the properties of the given logarithmic function f(x) = -log3x+6:

The function's domain is (0, ∞).

The function's range is  (-∞, ∞) i.e. the set of all real numbers.

At x = 0, the component shows the presence of a vertical asymptote.

The constant reflects the x-axis logarithm.

There are four basic properties of logarithms:

logₐ(xy) = logₐx + logₐy.

logₐ(x/y) = logₐx - logₐy.

logₐ(xⁿ) = n logₐx.

logₐx = logₓa / logₓb.

We have been given that the function f(x) = -log3x+6

As per the above function,

The function's domain is (0, ∞).

The function's range is  (-∞, ∞) i.e. the set of all real numbers.

At x = 0, the component shows the presence of a vertical asymptote.

The constant reflects the x-axis logarithm.

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The domain of the relation is 2, 5, 3, 6 and 7.

The domain of the relation can be found as follows;

The domain of a function is the set of all possible inputs for the function.

The domain are usually the independent variable of a function.

The domain are associated with the x values.

Hence, the domain of the relation is as follows:

domain = {2, 5, 3, 6 , 7}

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When the student needs to select a statistical question to research for a project, the question that he should select is D. How many students in my class were absent last Wednesday?

Any question that may be answered statistically is one for which data collection is possible and for which there will be some degree of data variability. Because there is no variability in the data used to answer the question, questions that can only be answered with a single data point are not statistical questions.

To do research for a project, a student must choose a statistical question. In this case, it should be noted that it's important to select a question that's specific. This was illustrated by option D.

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Answer: 4. 27x + 18            8. 4x - 5

Step-by-step explanation: should be right

Answer: same side interior angles

Step-by-step explanation: