Rewrite the expression using an exponent 9x9x9=

Answer:

21. 123    22. 6.86 or 6/ 6/7  23. 90

Step-by-step explanation:

21. (6+4)² + (22+10÷2)

     (10)² + (22 + 5)

        100 + 27

           127

22. (11+42-5) ÷ (11-4)

         48 ÷ 7

        6.85 or 6 6/7

23. (17-3) × (14 - 6) -22

         14 × 8 - 22

         112 - 22

           90

Answer:

-1

Step-by-step explanation:

When you make the number line, go to the middle then move left once. Then mark that  " -1 " and you put the dot over that.

It's hard to explain how to write number lines.

Anyways, the problem equals -1 because 6-7 is negative 1. The + is there to confuse you.

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Answer:64 Meters

Step-by-step explanation:

Answer:

Almonds: $2

Jelly Beans: $3.5

Step-by-step explanation:

Let the cost of a pound of almonds be A and the cost of a pound of jelly beans be J.

3A + 8J = 34 (Equation 1)

5A + 2J = 17 (Equation 2)

Use simultaneous equations.

Times equation 2 by 4

4(5A + 2J = 17) = 20A + 8J = 68

(20A + 8J) - (3A + 8J) = 68 - 34

17A = 34

A = 2

3A = 6

34 - 6 = 28

28/8 = 3.5

Checking:

3(2) + 8(3.5)

= 6 + 28

= 34

5(2) + 2(3.5)

= 10 + 7

= 17

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The correct equation of the circle with center (0,0) that passes through the point (-6,-6) is:

(x + 6)² + (y + 6)² = 72

Please note that the equation represents the circle with center (0,0) and radius √72.\(\)

Answer:

The equation of a circle with center (0,0) that passes through the point (-6,-6) is:

(x - 0)² + (y - 0)² = r²

where r is the radius of the circle. Since the center of the circle is (0,0), we can use the distance formula to find the radius:

r = √(0 - (-6))² + (0 - (-6))² = √(6² + 6²) = √72

Therefore, the equation of the circle is:

x² + y² = 72

We can conclude that the same ratio of dimes to quarters is not maintained.

Let

x represent the number of dimes

y represent the number of quarters

We know that;

Suri's coin purse

x = 6, y = 4

The ratio of dimes  to quarters is;

x/y = 6/4

For Martha's coin purse

x = 5 and y = 3

The ratio of dimes  to quarters is;

x/y = 5/3

Compare the ratios;

6/4 = 5/3

Cross multiply to get;

18 ≠ 20

Thus, we conclude that the ratios are not equal.

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Step-by-step explanation:

I guess, the silent request here is that there will be no wire left after the 10th square.

and I guess, the following square does not reuse one side of the previous square. all squares are "standalone".

T stands for area ? well, ok.

when the side length doubles, the area quadruples (the area is side×side, and factor 2 × factor 2 = factor 4). but the perimeter still only doubles.

T1 = x × x = x²

T2 = x×2 × x×2 = x² × 4 = T1 × 4

Tn = Tn-1 × 4 = T1 × 4^(n-1) = x² × 4^(n-1)

so, Tn/Tn-1 = 4

but the geometric series for the perimeter is

p1 = 4x

pn = pn-1 × 2 = x × 2^(n+1)

and pn/pn-1 = 2

the sum of a finite geometric series with n elements is

s = p1 × (1 - r^(n))/(1 - r)

r is the common factor. in our case it is 2.

and we have 10 elements.

so, we know

8184 = 4x × (1 - 2^(10))/(1 ‐ 2) = 4x × (1-2¹⁰)/-1 =

= 4x × -1023 / - 1 = 4x × 1023

2046 = x × 1023

x = 2046/1023 = 2 cm

so, now finally for iii)

T10 (the last, biggest square) = x² × 4⁹ = 4×4⁹ = 4¹⁰ =

= 1,048,576 cm²

There is a 60% probability that a randomly selected student from the class scored either an A or B in Biostatistics.

To calculate the probability that a randomly selected student scored either an A or B in Biostatistics, we need to consider the number of students who scored A and B and divide it by the total number of students in the class.

Given that there are 25 students in the class, 5 of them scored an A and 10 scored a B. To calculate the probability, we add the number of students who scored A (5) to the number of students who scored B (10):

Number of students who scored A or B = Number of students who scored A + Number of students who scored B = 5 + 10 = 15.

Therefore, the probability that a randomly selected student scored A or B

in Biostatistics is:

Probability = Number of students who scored A or B / Total number of students = 15 / 25 = 0.6 or 60%.

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Answer:

undefined

Step-by-step explanation:

0=x

look at the x column and find zero then look at the other column of the same row and that is your answer

With the application angular momentum algebra Jy is Hermitian, Jy has imaginary matrix elements is proved.

What is Matrix?

a matrix is a collection of numbers that have been put in rows and columns to make a rectangular array. The entries of the matrix are the numbers, which are referred to as its elements. In addition to many areas of mathematics, matrices are widely used in the fields of engineering, physics, economics, and statistics.

Solution:

Recall the angular momentum algebra:

[Jx, Jy] = ihJz, [Jy, Jz] = ihJx, [Jz, Jx] = ihJy

Given a basis | ii, the matrix representations for the Jx is [Jx]ij ≡ hi | Jx | ji, and likewise for

Jy and Jz. Thus, since Jx and Jz have real matrix elements, we find:

hi | Jx | ji = hj | Jx | ii, hi | Jz | ji = hj | Jz | ii

where we use the Hermiticty of Jx and Jz. Taking the matrix elements of the third commutator

given above, we find:

hi | [Jx, Jz] | ji = −i~ hi | Jy | ji

where

hi | [Jx, Jz] | ji = Summation k(hi | Jx | ki hk | Jz | ji − hi | Jz | ki hk | Jx | ji)

                      = − hj | [Jx, Jz] | ii

       hi | Jy | ji = − hj | Jy | ii

Therefore, Jy is Hermitian, Jy has imaginary matrix elements.]

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Answer: 15 Liters (15L)

Step-by-step explanation:

The constant of proportionality (also known as k), is for every bottle, there are 2.5 liters. (k = y/x)

5 / 2 = 2.5 , 12.5 / 5 = 2.5, 20 / 8 = 2.5, etc.

So, we need to multiply 6 by 2.5, 6 * 2.5 = 15

For 6 bottles, there are 15 liters

Answer:

20 blogs

Step-by-step explanation:

Step 1:  Determine the proportion of pop culture blogs:

First, we need to determine the proportion of pop culture blogs already written.  We can do this by dividing the number of pop culture blogs already written by the total number of blogs written:

The proportion of pop culture bloggers = Number of pop culture bloggers / Total number of bloggers

Proportion =  26 / (20 + 26 + 7 + 12)

Proportion = 26 / 65

Proportion = 0.4

Step 2:  Multiply the proportion of pop culture blogs by the number of upcoming blogs:

To determine the expected number of pop culture blogs that will be written given the data, we can multiply the proportion of pop culture blogs already written by the number of upcoming blogs:

Expected number of pop culture blogs = proportion of pop culture blogs *  number of upcoming blogs

Expected number = 0.4 * 50

Expected number = 20

Thus, you should expect 20 pop culture blogs to be written given the data.

Answer:

\(\huge\boxed{\sf Reduces}\)

Step-by-step explanation:

Since the scale factor of 0.75 is less than 1, So the dilated image is a reduced image.

Thus the scale factor of 0.75 reduces the dilated image.

\(\rule[225]{225}{2}\)

Hope this helped!

Answer:

-it reduces-

Step-by-step explanation:

good luck:)

A repeating decimal is acceptable to use during calculations when you require a certain level of precision

A repeating decimal is acceptable to use during calculations when you require a certain level of precision, but it's important to keep in mind that the result will be an approximation rather than an exact value.

It is commonly used in situations where a rounded value is sufficient and the level of precision doesn't significantly impact the final result.

On the other hand, you should convert a repeating decimal to a fraction for calculations when you need an exact value or when further mathematical operations or comparisons are required.

Converting a repeating decimal to a fraction allows for precise calculations and eliminates any potential rounding errors associated with working with decimal approximations.

Converting a repeating decimal to a fraction involves identifying the repeating pattern and expressing it as a fraction. This allows for exact calculations and maintains the mathematical properties of fractions.

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Step-by-step explanation:

The answer is letter B. Negative and Negative is Positive.

Answer:

b. Yoshi applied the rules of signed numbers incorrectly.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hello

Please what’s the explanation to get the answer (2+2) ² (2+3)³

we use PEMDAS

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

(2 + 2)² + (2 + 3)³ =

4² + 5³ =

16 + 125 =

141

keeping in mind that a line with a slope of "0" is just a horizontal line, Check the picture below.

Answer:y = -3

Step-by-step explanation:

Answer: A

Step-by-step explanation: The dot is a filled-in circle, meaning it has to be A, B, or E. Then, B is saying that the arrow is going left, so that's wrong. E is saying that it is just 6 instead of -6, which leaves us with A.

hope this helps!

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Answer:

~$331 - *16 hours

Step-by-step explanation:

~ $20x5=$100

~ $21x11=$231

~ $231+$100=$331

* 5+11=16

Answer:

40,000,000

Step-by-step explanation:

Answer:

Step-by-step explanation:8  4  9  5  6  7  0  5  3  

Ones : 3

Tens : 5

Hundreds : 0

Thousands : 7

Ten Thousands : 6

Hundred Thousands : 5

Million : 9

Ten Million : 4

Hundred Million : 8

Answer:

She's giving you advice at the beginning so as you read along you focus on that and it changes your perspective on the characters, setting, or what's happening in the story.

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

m = (Y2 - Y1) / (X2 - X1)                  Slope formula

m = (1 - 0) / (2 - 0)                           Plug in any two points, I chose (2,1) & (0,0)

m = 1 / 2

P.S. You could also count rise/run

Basically count the amount of units going up or down then counts the units going left or right that get you to the next point of the line

True, The dimension of the eigenspace for each eigenvalue equals the multiplicity.

Eigenvalues are a unique set of scalar values connected to a set of linear equations that are most likely seen in matrix equations. The characteristic roots are another name for the eigenvectors. It is a non-zero vector that, after applying linear transformations, can only be altered by its scalar factor.

When a linear transformation is done to an eigenvector, a set of eigenvectors called an eigenspace is created for each eigenvalue. In many cases, the linear transformation uses a square matrix (a matrix that has the same number of columns as it does rows).

yes, it is true that the dimension of an eigenspace of a symmetric matrix is sometimes less than the multiplicity of the corresponding eigenvalue.

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Answer:

No, we can't make 20 by adding 5 odd numbers.

Step-by-step explanation:

An odd number is represented by 2n+1, the sum which we got is represented in this form, so it's obviously an odd number. But 20 is an even number, so sum can't be 20.

The expression for dividing 20 for 5 times is 4/(2n + 1).

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

As per the data provided in the question,

The formula for any odd number is (2n + 1), whereby n is any integer.

Now, the number will be,

⇒ 20/(5 × (2n + 1))

⇒ 4/(2n + 1)

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Answer:

0

Step-by-step explanation:

the equation describes a horizontal line with a y-intercept of -4. as the line is horizontal, the slope is 0. The slope is 0 and the y-intercept is -4.

Answer:

0

Step-by-step explanation:

This equation is written in slope-intercept form. This form is y=mx+b, where m is the slope and b is the y-intercept. In this equation, there is no x. This must mean that m is 0 because the only number times x that could make x=0 is 0. If this line was drawn it would be a straight horizontal line, since it is not changing at all the slope is 0.

Answer:

y=0

Step-by-step explanation:

So you would do -4(6y-3) and divide that by -4

then you would do 12 and divide that by -4

or

You could do

-6y-3 which equals -3

then

add three to both sides like this -6y-3+3=-3+3

then simplify it to -6y=0

then divide -6y over -6 and 0 over -6

then it will simplify to 0

The net area of the paper needed is 4.125 square feet.

A cuboid is a three-dimensional closed figure which has volume along with surface area.

The volume of a cuboid is the product of its length, width, and height.

The total surface area of a cuboid is 2(lw + wh + wl) and the lateral surface area is 2(l + w)×h.

Given, The gift is 1.5 feet tall and one of the bases is 9 inches = 0.75 by 0.5 feet.

Therefore the total surface area is,

= 2(1.5×0.5 + 1.5×0.75 + 0.75×0.5).

= 2(0.75 + 1.125 + 0.375).

= 2(2.25).

= 4.5 square feet.

Now, She left one of the bases uncovered which have an area of 0.375 square feet.

Therefore, the net amount of paper needed is = 4.5 - 0.375.

= 4.125 square feet.

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The greatest common factor of 38 and 30 is 2.

It should be noted that thw first step to this method of finding the Greatest Common Factor of 30 and 38 is to find and list all the factors of each number.

Let’s take a look at the factors for each of these numbers, 30 and 38:

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30

Factors of 38: 1, 2, 19, 38

When you compare the two lists of factors, you can see that the common factor(s) are 1, 2. Since 2 is the largest of these common factors, the GCF of 30 and 38 would be 2.

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Step-by-step explanation:

64 natural numbers, -55,64, -5.4, 0 real numbers, -55,0,64 integers. 4/7, 4.16 rational number. pie, 14 irrational number. 64, 0 nonnegitive integer

Answer:

Step-by-step explanation:

Rational numbers: 4/7, -5.4, 4.16

Irrational numbers: square root of 14, π

Natural number: 64

Real numbers: Everything in that square

Integers: -55, 0, 64

Non-negative integers: 0,64

Hope that helps!