Which expressions are equivalent? Check all that apply.
39
34
-9²
9
81¹

Answers

Answer 1

Answer:

-9²

81¹

They both are equal to 81.


Related Questions

Given that 6 > –2, which statements are true? Check all that apply. (2)(6) > (–2)(2) StartFraction 6 over 2 EndFraction less-than StartFraction negative 2 over 2 EndFraction (–2)(6) > (–2)(–2) StartFraction 6 over negative 2 EndFraction less-than StartFraction negative 2 over negative 2 EndFraction (2)(6) < (–2)(2) StartFraction 6 over 2 EndFraction less-than StartFraction negative 2 over 2 EndFraction

Answers

We get that statements 2 and 3 are correct statements.

We have given that the

6>-2

We have to find the correct statement from the given statement,

What is the meaning of less than inequality?

Less than or equal to relation is one of the inequalities used to represent the relation between two non-equal numbers or other mathematical expressions.

1) 6/2<2/-2

3<-1

This is not possible therefore first statement is not correct

2) 6/-2<-2/-2

-6<1

This is the correct statement.

3)

6/2<-2/2

3<-1

This is the correct condition.

Therefore this is a correct statement.

Therefore we get that statements 2 and 3 are a correct statements.

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Answer:

A D F

Step-by-step explanation:

dont waste your time :)

How many solutions are there to this system of equations?

On a coordinate plane, 2 lines have equations y = one-fourth (x minus 4) and y = one-fourth x minus 1.


One solution


No solution


Infinitely many solutions


It cannot be determined without solving.

Answers

So, in response to the above question, we can state that equation the response is: There are countless options.

What is equation?

A mathematical equation links two statements and utilises the equals sign (=) to indicate equality. In algebra, an equation is a mathematical assertion that proves the equality of two mathematical. For examples, in the equation 3x + 5 = 14, because equal sign separates the numbers by a gap. A mathematical formula may be used to determine how the two sentences on either side of a letter relate to one another. The emblem and the particular piece of software are usually identical. like, for instance, 2x - 4 = 2.

The two lines' equations are y = 1/4 (x - 4) and y = 1/4 (x - 1)

By equating them, we obtain: 1/4(x - 4) = 1/4x - 1.

To get rid of the fractions, multiply both sides by 4 as follows: x - 4 = x - 4

This equation may be written as 0 = 0, which is a constant.

The two lines coincide and have an endless number of solutions as a result.

Hence, the response is: There are countless options.

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Quadratic functions g (x) and h (2) are graphed on the same coordinate gri
The vertex of the graph of h (2) is 12 units above the vertex of the graph
of g (2).
Which pair of functions could have been used to create the graphs

Answers

Since their vertices have the same x-value , solving their derivative equal to zero must give the same answer:

A & D are eliminated:

The derivative of h(x) in A is 2x+24

h'(x)=0 g'(x)=0

2x+24=0 2x=0

x=-12 x=0

Similarly the derivative of h(x) in D is 2x-24

h'(x)=0 g'(x)=0

x=12 x=0

Knowing that B & C give the same x-value when solving for the derivative=0

We know that the only difference comes down to the y-value when substituting x=0 in h(x).

The y-value of the vertex of h(x) must be +12 the y-value of the vertex of g(x).

We have to add 12 to get to the x-value, which means that the third option or C is your answer.

20) Angel asked some of her friends to write down the types and number of pets they own. The bar graph shown here displays the information she received.
Angel predicts that the next friend she asks will not own a rabbit.
Which statement justifies Angel's prediction?

A) None of Angel's friends owns a rabbit.

B) There are more rabbits owned than birds.

C) There are fewer rabbits owned than any pet.
D) There are just as many birds owned as rabbits.

Answers

the answer is c as there is only one friend with a rabbit and there are much more from the other animals it has the smallest bar so has the least

What is 1/3 as a mixed number?

Answers

1/3 is a proper fraction

hope it helps...!!!

Line s has an equation of y=1/3-X-5. Line t is perpendicular to line s and passes through (-2, 9). What is the equation of line t?
Write the equation in slope-intercept form. Write the numbers in
the equation as simplified proper fractions, improper fractions, or
integers.

Answers

Answer:

y = 3x + 15

Step-by-step explanation:

1. Find the reciprocal of the slope and change signs: -3

2. y = 3x + b

3. Plug in x and y --> b = 15

4. Make your equation using y = mx + b: y = 3x + 15

The equation of the perpendicular line 't' will be equal to y = -3x + 3.

What is an equation of the line?

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that line, s has an equation of y=1/3-X-5. Line t is perpendicular to line 's' and passes through (-2, 9).

The equation of the line will be calculated as,

For the perpendicular line, the slope is reciprocal with a negative sign,

m = -3

The equation of the line will be written as,

y = mx + c

y = -3x + c

9 = ( -3 x - 2) +c

c = 9 - 6

c = 3

The equation is,

y = mx + c

y = -3x + 3

Therefore, the equation of the perpendicular line 't' will be equal to y = -3x + 3.

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pls hlpppppp!!!!!!!!!!

Answers

Step-by-step explanation:

1/100 .................

CAN SOMEONE HELP ME. PLEASE I NEED NOW. please help me

Answers

Answer:

1. Mean is 14.5  Median is 13.5   Mode is 13

2. Mean is 84  Median is 84  Mode is 84

3. Mean is 26.6 Median is 27 Mode is 20

4. Mean is 87   Median is 87 Mode is 87

5. Mean is 14.6 Median is 14 Mode is 14,12

Step-by-step explanation:

Hope this helps!! May not be entirely right but tried to do it quick for you

The data in the table shows a sinusoidal relationship between the number of seconds an object has been moving and its velocity v (x), measured in centimeters per second

What is true of the cosine function that models the data in the table?
Drag a value into each box to correctly complete the statements.

The period of the cosine function is The equation of the midline of the cosine function is y = 20 The amplitude of the cosine function is ​

Answers

Answer:

The period is the change in x required for the function to return to the same value, changing in the same direction. The first two table entries are v(x) = 41.7 and 35.7. The next time that sequence appears is when x=44, so the period is ...

 period = 44 -4 = 40 . . . seconds

__

The minimum table value is 20; the maximum is 44, so the midline of the function is their average:

 midline = (20 +44)/2 = 32

__

The amplitude is the maximum deviation from the midline, so is ...

 amplitude = 44 -32 = 12

Step-by-step explanation:

Prove or disprove that the point (√5, 12) is on the circle centered at the origin and containing the point (-13, 0). Show your work.

Answers

Using the equation of the circle, it is found that since it reaches an identity, the point (√5, 12) is on the circle.

What is the equation of a circle?

The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:

[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]

In this problem, the circle is centered at the origin, hence [tex](x_0, y_0) = (0,0)[/tex].

The circle contains the point (-13,0), hence the radius is found as follows:

[tex]x^2 + y^2 = r^2[/tex]

[tex](-13)^2 + 0^2 = t^2[/tex]

[tex]r^2 = 169[/tex]

Hence the equation is:

[tex]x^2 + y^2 = 169[/tex]

Then, we test if point (√5, 12) is on the circle:

[tex]x^2 + y^2 = 169[/tex]

[tex](\sqrt{5})^2 + 12^2 = 169[/tex]

25 + 144 = 169

Which is an identity, hence point (√5, 12) is on the circle.

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A bag contains 8 red crayons 14 purple crayons 6 yellow crayons and 4 green crayons. A crayon is selected, then another is selected. Find each probability. P(green then red)

Answers

Answer:

red 8/32 = 1/4

purple 14 / 32 = 7/16

yellow 6/32 = 3/16

green 4 / 32 = 1/8

Step-by-step explanation:

if you add all the crayons together you get 32

you put each number over 32 and then divide it

A weight attached to a spring is at its lowest point, 9 inches below equilibrium, at time t = 0 seconds. when the weight it released, it oscillates and returns to its original position at t = 3 seconds. which of the following equations models the distance, d, of the weight from its equilibrium after t seconds? d = negative 9 cosine (startfraction pi over 3 endfraction t) d = negative 9 cosine (startfraction 2 pi over 3 endfraction t) d = negative 3 cosine (startfraction pi over 9 endfraction t) d = negative 3 cosine (startfraction 2 pi over 9 endfraction t)

Answers

The equation which models the distance (d) of the weight from its equilibrium after time (t) is equal to d = -9cos(2π/3)t.

What is the period of a cosine function?

The period of a cosine function simply means the total length (distance) of the interval of values on the x-axis over which a graph lies and it's repeated.

Since the weight attached is at its lowest point at time (t = 0), therefore, the amplitude of equation will be negative nine (-9)

For the angular velocity at time period (t = 3s), we have:

ω = 2π/T

ω = 2π/3

Mathematically, the standard equation of a cosine function is given by:

y = Acos(ω)t

Substituting the given parameters into the formula, we have;

d = -9cos(2π/3)t.

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Answer:

B.    d =    -9cos ( 2 pi/3 t)

Step-by-step explanation:

Have a good day

A school production sold 480 tickets, including 325 tickets to adults. The rest were sold to
students.
Write the ratio of adult tickets to student tickets in simplest form.

Answers

I believe it would be 96/65

The table below represents a linear function. What is the slope?

Answers

it’s d because if you reverse -2 to go up the graph instead of down you get 0, then 2, then 4

HELP What is the approximate area of the shaded region created by segment BC?

Answers

5.01 I’m not sure but I’m pretty sure it’s that one because if u look on the bottom of line segment BC it says 5cm 5.01 possibly the closest

Pls help a b c d or e

Answers

Answer:

Answer is B.

Step-by-step explanation:

Domain: All real numbers except -6

Set denomator of x + 6 = 0

x + 6  = 0

x ≠ -6

If we plug in x = -6 into the equation we get 4/0 making it undefined. So exclude x = -6 on domain.

Range: All real numbers except 0

y ≠ 0

Find the value of each variable.
HELP

Answers

Answer:

1. x=10; y=10 x root 2

Step-by-step explanation:

This is a 45-45-90 triangle, so the legs of the right triangle have an equal length. The formula states that y=x root 2, which is 10, so 10 root 2. The other triangles are all 30-60-90 triangles.

Fraction exponents use the product rule and answer in a single exponent,

Answers

1. Anything raised to zero is 1.

What is the solution to the following system of linear equation?
y = -1x + 5
y = -1x + 2

Answers

Answer:

D. No solution

Step-by-step explanation:

Since, both the lines are going parallel to each other. Hence, there will be no solution.

What is the slope of the line passing through the points (0, 4) and (6, 13)

Answers

Answer:

The slope is [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Hi there!

We are given the points (0, 4) and (6, 13)

We want to find the slope of the line containing these two points

Slope (m) is the steepness of the line. When calculating from two points, you use the equation [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points

Although we have what we need to find the slope, let's label the values of the points to avoid confusion and mistakes.

[tex]x_1=0\\y_1=4\\x_2=6\\y_2=13[/tex]

Substitute these values into the equation

m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m=[tex]\frac{13-4}{6-0}[/tex]

Subtract

m=[tex]\frac{9}{6}[/tex]

Simplify

m=[tex]\frac{3}{2}[/tex]

The slope of the line is 3/2

Hope this helps!

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Solve for x in the equation x squared minus 8 x 41 = 0.

Answers

Answer:

??

Step-by-step explanation:

well according to G it's x=4±5i lol

Step-by-step explanation:

I couldn't figure it out on my own had to G it. sorry if this doesn't help

Show how to add 2 1/2+ 4/5 using the number line below

Answers

Answer:

Start at 2 1/2 plot that. Then go to 3 3/10 which is 3 right of the whole number 3 and plot it. Lastly, draw lines or bumps to represent going from 2 1/2 to 3 3/10.

Step-by-step explanation:

The Simplest way (This includes the graphing part but I advise you to use the addition steps first)

I always like to convert mixed numbers into decimals.

2 1/2 is 2.5 and 4/5 is 0.8.

2.5 + 0.8 = 3.3 which is 3 3/10

Graph:

2 1/2 should be in the middle of the whole numbers 2 and 3.

That is your starting point.

Now to add 4/5 which is 0.8 you could do 2.5 + 0.8 = 3.3

You need to find your ending point.

Your ending point should be 3 tickmarks to the right of 3.

Now, you could draw hop marks or arrows starting from 2 1/2 to 4/5

Addition Steps:

First, convert 2 1/2 to an improper fraction.

2x2 + 1 = numerator.

4+1 = 5

5/2 is 2 1/2.

Now you need to find a common denominator for 2 and 5.

This should be 10.

Multiply 5/2 by 5/5

Multiply 4/5 by 2/2

25/10 and 8/10 should be the answers

Now do 25+8 but keep the denominator 10.

25+8 is 33/10.

You could convert it to 3.3 which is 3 3/10  

3 3/10 is on your number line.

Which of the following sets of ordered pairs does not represent a function?

A. (-6,0), (3,0), (-2,0), (0,0), (9,0)

B. (3.5,-1), (3.5,-5), (3.5,10), (3.5,0), (3.5-1.5)

C. (-9,-3),(4/5,4/5), (6/7, 2/7), (-1/4, -1/12), (1 4/5, 3/5)

Answers

Answer:

B

Step-by-step explanation:

B   there is two values of y for x = 3.5     so ....not a function

To create a histogram of the data given, identify the frequency for the given intervals. the interval 44-47 has a frequency of . the interval 48-51 has a frequency of . the interval 56-59 has a frequency of .

Answers

An interval can be defined as a set of real numbers. The interval (44-47), (48-51), and (56-59) will have frequencies of 3, 4, and 1.

What is Interval?

A collection of real numbers between two specified values known as the interval's endpoints is referred to as an interval.

The data set given to us is 42, 43, 46, 47, 47, 48, 49, 50, 51, 53, 55, 55, 59. Therefore, the frequency can be written as,

The interval 44-47 includes {46, 47, 47}, thus, having a frequency of 3.The interval 48-51 includes {48, 49, 50, 51}, thus, having a frequency of 4.The interval 56-59 includes {59}, thus, having a frequency of 1.

Thus, the interval (44-47), (48-51), and (56-59) will have frequencies of 3, 4, and 1.

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Answer:

3 4 1

Step-by-step explanation:

I took the assignment and got it right

Please help lol with all 3

Answers

Answer:

same thing I am doing help me

Answer:

3. Volume =  

4  πr3

3

=  

4 ×π×93

3

=  972π

=  3053.6280592893 inches3

2.Volume =   πr2h

=  π×22×12

=  48π

=  150.79644737231 inches3

1.Volume =  

1  πr2h

3

=  

1 ×π×72×15

3

=  245π

=  769.6902001295 inches3

Step-by-step explanation:

volume calculator

6.) Find the volume of the triangular prism
3in
20in
2in

Answers

Answer:

60 cubic inches

Step-by-step explanation:

volume of prism

= area of triangular base x length(or height)

= (1/2 x base of triangular base x height of triangular base) x length

= (1/2 x 2 x 3) x 20

= 60 cubic inches

hope this helps!

Find the total cost of an $849.50 laptop after including 6% sales tax.

Answers

Answer:

$900.47

Step-by-step explanation:

you minus $50.47 (%6) from $900.47

The total cost of an $849.50 laptop after adding a 6% sales tax will be equal to $900.47.

What is the Percentage?

The Latin phrase "per centum," which means "by the hundred," is where the English word "percentage" comes from. Percentage segments are those with a numerator of 100. In other words, it is a connection where the whole is always deemed to be valued 100.

As per the data provided in the question,

Price of laptop = $849.50

A tax of 6% on the Price of the laptop, so the tax will be,

849.50 × 6/100 = $50.97

Then, the total cost of the Laptop will be,

$849.50 + $$50.97 = $900.47

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FIRST ONE TO ANSWER CORRECTLY WILL BE BRAINLIEST
Jamie and Billy each think of a polynomial. Each of their polynomials is monic, has degree 3, and has the same positive constant term and the same coefficient of x. The product of their polynomials is x^6 +2x^5 +2x^4 +18x^3 + 33x^2+40x+16.

b)What is the coefficient of x of jamie's polynomial?
c)what are the two polynomials?

Answers

Answer:

b) the coefficient of x of jamie's polynomial is 5 .

c) The two polynomials are :

x³ + 4x² + 5x + 4 

x³ - 2x² + 5x + 4

Step-by-step explanation:

consider these two Monic polynomials of degree 3:

P : x³ + ax² + bx² + c  

Q : x³ + a₁x² + bx² + c  

P × Q = x⁶+ (a+a₁)x⁵ + (aa₁+2b)x⁴ + (ab+a₁b+2c)x³ + (ac+a₁c+b²)x² +2bcx + c²

Now we compare the coefficients of P × Q and  x⁶ + 2x⁵ +2x⁴ + 18x³ + 33x² + 40x + 16

b)

c² = 16 ⇒ c = 4  (c is positive)

2bc = 40 ⇒ 8b = 40 ⇒ b = 5 then the coefficient of x of jamie's polynomial is 5 .

c)

In order to find a and a₁ we need to solve this system:

a+a₁ = 2                   a+a₁ = 2

                      ⇔

aa₁+2b = 2              aa₁ = -8

Solve the system and you’ll get :

a = 4 and a₁ = -2   or a = -2 and a₁ = 4

Let’s choose a = 4 and a₁ = -2 then

the two polynomials are respectively:

P : x³ + ax² + bx² + c  = x³ + 4x² + 5x + 4

Q : x³ + a₁x² + bx² + c  = x³ - 2x² + 5x + 4

Which function is graphed below?
fx) = -cos(x)
f(x) = cos(x)
f(x) = sin(x)
F(x)=-sin(x)

Answers

Answer:

f ( x ) = sin ( x )

Step-by-step explanation:

Answer:

that is a f(X)=sin(x) curve

Step-by-step explanation:

the curve cuts the origin as it moves upwards and has the same amplitude

Attempt 2

A student randomly selects two buttons from a box containing 32 red buttons, 48 blue buttons, 44 green buttons, and 51

yellow buttons. Compute the probability, as a decimal ratio with four decimal places, of selecting two red buttons.

Answers

The probability of drawing two red buttons is:

P = 0.0326

How to get the probability?

There are:

32 red buttons.48 blue buttons.44 green buttons.51 yellow buttons.

So there are a total of 32 + 48 + 44 + 51 = 175

We assume that all the buttons have the same probability to being randomly drawn.

For the first button, the probability of drawing a red one is equal to the quotient between the number of red buttons and the total number of buttons:

p = 32/175

For the second button the probability is computed in the same way, but now there are 31 red buttons and 174 buttons in total, so we have:

q = 31/174

Finally, the joint probability is given by the product between p and q, this gives:

p*q = (32/175)*(31/174) = 0.0326

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