Mathematics Middle School

Which of the following algebraic equations is equivalent to nVa = 7?

Answers

Answer 1

Answer:

first anwer is the correct one

Step-by-step explanation:

if we power to n we got

$(n\sqrt{a})^n = x^n$

then $a = x^n$

Answer 2

Answer- the first answer is correct.

Related Questions

I need help with this please ASAP!!!!

Answers

A and D are irrational

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

GIVING BRAINLIEST how many O's are in one thousand

Answers

Answer:

Step-by-step explanation:

2 because One thOusand

Find the sale price of each item. Round to two decimal places when necessary.

Original price: $23.99; Markdown: 44%

$_______________________________________
PLEASE HELP!!

Answers

Answer:

$14.394

Step-by-step explanation:

23.99 - 40%

1) Find the mean for his data set of days that had a temperature above 400C.

2) Find the median for his data set of days that had a temperature above 400C.

3) Find the mode for his data set of days that had a temperature above 400C.

4) If, instead, there are 5 more days per month that had a temperature above 400C, what will be the mean for the data?

5) If, instead, there are 2 more days per month that had a temperature above 400C, what will be the mode for the data?

6) If the number of days per month that had a temperature above 400C, doubles each month in that year, what will be the median for the data?

7) For what value of x will 9, 16, and x have the same mean (average) as that of 26 and 12?

8) For what value of x will 55 and x have the mean (average) as 67?

9) The mean (average) weight of three boys is 40 pounds. One of the boys weighs 50 pounds. The other two boys have the same weight. Find the weight of each of the boys?

10) A cat consumes 2 cups of milk every day. How much milk does that cat drink on average in a week? What is the mode for the question above?

Statistics Application Problems

Objective: Solve applications using basic statistics

Answers

Answer: 1) 11.752) 11.53) 11 and 14 4) 16.755) 13, and 16

1. Where’s the data set
2. The person who answers must be on something if he did it without one.

you should provide more information

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

i need step by step explanation for this!!

Answers

Hello! :)

Answer:

$\huge\boxed{751}$

Let the smallest digit, or the units' digit, be equal to x:

Tens' digit is four more, therefore:

x + 4 represents the tens' digit.

Hundreds' digit is 2 more than the tens' digit, so:

2 + (x + 4), or x + 6 represents the hundred's digit.

These all sum up to 13, so write an expression to represent this:

x + (x + 4) + (x + 6) = 13

Combine like terms:

3x + 10 = 13

Subtract 10 from both sides:

3x = 3

Divide both sides by 3:

x = 1

Find the digits using the rules listed above:

Hundreds' digit: (1) + 6 = 7

Tenths' digit: (1) + 4 = 5

Units' digit: 1 = 1

Therefore, the number is:

751.

The answer is 751

This is my answer according to my calculation.

please answer this and give why

Answers

Answer:

Option B

Step-by-step explanation:

→ The option must have 2 negatives at the beginning which means it could be option B, convert all to decimals to confirm

-0.5, -0.11111, 0.125 and 0.2

Answer is option B!

Prime Factorization- Figure out all of the variables to make the factor tree true.

Answers

it won’t let me put the answer

Evaluate 4 - x, when x = -6

Answers

Answer:

Step-by-step explanation:

4--6

4+6=10

Answer

10

step-by-step

4–6

4+6

Consider the equation 30÷x=6.

Part A

Which equation demonstrates how the divisor indicates the size of the unit?

Answers

part A : 30 - x - x - x - x - x - x = 0

^ since 30 divided by 5 is 6, that answer is the same as doing 5 + 5 + 5 + 5 + 5 + 5

- pls comment & correct me if i did smth wrong :’)

Answer:

Part A: D or the last one

part B: The value of X is 5

Step-by-step explanation:

6 times ? =30

The answer is 5 so you have the value to X and then you take the 30 and to get 0 you need to subract 5 six times.

Hope this helped!

A builder buys 29.5 acres of land to develop a new community of homes and parks.
The builder plans to use 0.75 of the land for a park. How many acres will he use for the park?

Answers

the answer is: 22.125 acres
the total land is 29.5, and the builder uses 75% of the land for a park. which u would multiple 29.5 by 0.75, 29.5x0.75=22.125

12 / 2a (4² x7) 10b - 20
a = 2 b = 5
PLEASE HELP I KEEP FORGETINGGG
*with step by step explanation

Answers

Plug in a and b

Step one plug in:
12/2(2) (4^2x7) 10(5)-20

the answer is *67,180*

explanation: first, plug in a (2) and b (5).
12/2(2) (4’2x7) 10(5) - 20
begin to solve, starting with parentheses, exponents, multiplication/division, and then subtraction.
(12 x 112 x 50 - 20)
12 x 112 is 1,344
1,344 x 50 is 67,200
67,200 - 20 is 67,180.
therefore, the answer would be 67,180!

i hope this helped!

True or false? Ask Bruno.

Answers

a. true
b. true
c. false

True, true false

1 is true because complimentary angles add up to 90 degrees to which they do.
2 is true because all angles in a triangle add to 180 degrees.
3 is false because vertical angles are were each of the pairs of opposite angles made by two intersecting lines.

1. A straight fence is constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. A certain fence begins and ends with a post. If there are 7 posts, what is the total length of the fence?

Answers

Answer:

Step-by-step explanation:

First, we will multiply the number of posts (7) by the posts' width (6) to get 42.

Since there is a chain between each post, there are 6 chains.

Multiplying the number of chains (6) by the chains' length (5), we get 30.

The question asks us to find the total length of the fence, so we add 42 and 30 and get 72.

Hope this helps!

Is the given value a solution to the equation?

3(y + 8) = 2y − 6

y = 30

Answers

the answer to this question is y = -30

Round steak costs $6.95 per pound. Sara wants to buy 9.5 pounds of round steak which she estimates will cost $54. Which statement about Sara’s estimate is true?

Answers

Answer:

depends to be exact it would cost $66

Step-by-step explanation:

It’s approx. $66.03, in conclusion Sara’s estimate is false

Plz help me for points

Answers

I can't see number 4.

Hope this is good enough for you.

Pls mark me brainliest

PLEASE HURRY!!!!!!!!!!!!!!!!!!!!!!

Answers

C. 167 243/386 I think

Answer:

167 243/386

Step-by-step explanation:

Find the missing length.

Answers

x=10 as you divide and then subtract your remaining answer

Answer:

10 m

Step-by-step explanation:

You want the length of a rectangle that has an area of 155 m² and a width of 15.5 m.

Area

The area formula is ...

A = LW

Filling in the given values, we have ...

155 m² = L(15.5 m)

Dividing by 15.5 m gives ...

(155 m²)/(15.5 m) = L = 10 m

The missing length is 10 m.

<95141404393>

Pentagon HIJKL is translated right 2 units and 9 units down to produce H'I'J'K'L'. Then, H'I'J'K'L' is reflected across the y-axis to produce H''I''J''K''L''.

Answers

To visualize the transformation, you can draw the Pentagon HIJKL on a coordinate plane, where each vertex corresponds to a point in the plane. Let's say the coordinates of the vertices are:

- H = (x1, y1)
- I = (x2, y2)
- J = (x3, y3)
- K = (x4, y4)
- L = (x5, y5)

Then, to translate the pentagon right 2 units and down 9 units, you can add 2 to each x-coordinate and subtract 9 from each y-coordinate to get the new coordinates:

- H' = (x1 + 2, y1 - 9)
- I' = (x2 + 2, y2 - 9)
- J' = (x3 + 2, y3 - 9)
- K' = (x4 + 2, y4 - 9)
- L' = (x5 + 2, y5 - 9)

Next, to reflect H'I'J'K'L' across the y-axis, you can negate the x-coordinates to get the new coordinates:

- H'' = (-x1 - 2, y1 - 9)
- I'' = (-x2 - 2, y2 - 9)
- J'' = (-x3 - 2, y3 - 9)
- K'' = (-x4 - 2, y4 - 9)
- L'' = (-x5 - 2, y5 - 9)

These new coordinates represent the vertices of the transformed pentagon H''I''J''K''L''.

Note that the order of the transformations matters. If you had reflected the original pentagon across the y-axis first, and then translated it, you would have gotten a different result.

New coordinates are H”” I”” J” K” L’

The length of time, y hours, it takes to put a jigsaw puzzle together is inversely proportional to the number of children, x, working on it. It takes 6 hours for 16 children to put the jigsaw puzzle together. How many children are needed to put the same jigsaw puzzle together? How many children are needed to put the same jigsaw puzzle together in 4 hours?

Answers

Answer: up to 120 pieces

Step-by-step explanation:

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

What is the median of this data set?

Answers

Answer:

Step-by-step explanation:

It is the middle point/dot

in the box with the line

(58) the line in the box plot shows the median or in other words the most frequent occurrence of that amount statistically.

Eight avocados cost $4.

How much do 9 avocados cost?

Answers

Answer:

$4.50

Step-by-step explanation:

if eight cost $4 that means each avocados cost 50 cents

4.50& because it was half now it’s whole

Perform the following operations and write the answers in radical form.

Part A: 8^1/2 + 16^1/4 - 12^1/2 + 81^1/4

Part B: 8 x 2^1/2 - 24^1/4 - 3^1/2 + 128^1/4

Answers

Answer:

Part A: 22 1/4

Part B: 8x+49/2

Step-by-step explanation:

Check attachments

Perform the following operations and write the answers in radical form.Part A: 8^1/2 + 16^1/4 - 12^1/2

The answer to a is 22 1/4
B= 8x+ 49/2

English is the predominant language spoken in Chile. Question 1 options: True False

whoever answers first gets the crown

Answers

Answer: The answer is false!

Step-by-step explanation: You may think its true but NO, its not true!

Answer: false

Step-by-step explanation:

the correct answer is a dialect of spanish, chilean spanish.

.
Which of the following measures would create only ONE possible triangle?
three angles of 39°, 68°, and 69°
two sides of 4 cm and 7 cm with an angle of 54° not between those two sides
a 63° angle between two sides of length 4 cm and 7 cm

Answers

Answer:

a 63° angle between two sides of length 4 cm and 7 cm.

Step-by-step explanation:

A triangle can only be formed if the sum of any two sides is greater than the third side, and in the case of angles, the sum of the angles must be equal to 180 degrees. Using these principles, we can determine which measure would create only one possible triangle:

three angles of 39°, 68°, and 69°: This set of angles does not form a triangle because the sum of the angles is 176°, which is less than the required 180°. Therefore, no triangle can be formed with these angles.two sides of 4 cm and 7 cm with an angle of 54° not between those two sides: This set of measures can form two possible triangles. To see why, imagine drawing a line segment of length 7 cm, then drawing two circles centered at the endpoints with radii of 4 cm. The two circles will intersect at two points, and these points represent the two possible locations for the third vertex of the triangle. Therefore, there are two possible triangles that can be formed with these measures.a 63° angle between two sides of length 4 cm and 7 cm: This set of measures can only form one possible triangle. To see why, note that the angle opposite the side of length 4 cm must be less than 63° (since the sum of angles in a triangle is 180°). Likewise, the angle opposite the side of length 7 cm must be greater than 63°. Therefore, there is only one possible location for the third vertex of the triangle, and hence only one possible triangle can be formed with these measures.

If Quadrilateral Q is a scaled copy of Quadrilateral P created with a scale factor of 3, what is the perimeter of Q?

Answers

The perimeter would be 186 if I’m not mistaken

The perimeter of the trapezoid is given by the equation Q = 186

What is a trapezoid?

The Trapezoid is a 4 sided polygon. Two sides of the shape are parallel to each other and they are termed as the bases of the trapezoid. The non-parallel sides are known as the legs or lateral sides of a trapezoid.

There are three types of trapezoids , and those are given below:

a) Isosceles Trapezoid

b) Scalene Trapezoid

c) Right Trapezoid

The area of the Trapezoid is given by

Area of Trapezoid = ( ( a + b ) h ) / 2

where , a = shorter base of trapezium

b = longer base of trapezium

h = height of trapezium

Given data ,

Let the perimeter of the scaled trapezoid be Q

Quadrilateral Q is a scaled copy of Quadrilateral P created with a scale factor of 3

Now , the trapezoid Q = 3 x trapezoid P

The perimeter of trapezoid Q = 3 x perimeter of trapezoid P

Length of longer base of P = 25

Length of shorter base of P = 7

And , the perimeter of trapezoid P = length of longer bases + length of bases + height

Substituting the values in the equation , we get

Perimeter of P = 15 + 15 + 7 + 25

On simplifying the equation , we get

Perimeter of P = 62

Now , perimeter of trapezoid Q = 3 x Perimeter of P

So , perimeter of trapezoid Q = 3 x 62

Perimeter of trapezoid Q = 186

Therefore , the value of Q is 186

Hence , the perimeter of trapezoid Q is 186

To learn more about trapezoid click :

https://brainly.com/question/12221769

#SPJ2

A coordinate grid is drawn over a postcard of Da Vinci's Mona Lisa. The postcard is a 1/4 dilation of the original painting. If the tip of Mona Lisa's nose on the postcard is at the point (−4, 2), what would be the coordinates of the tip of her nose in the preimage?

Answers

Answer:

Step-by-step explanation:

(-16,8) is your answer!

The table shows the multiplication of two linear expressions. Select the correct reason for each step.

Reason 1:

Reason 2:

Reason 3:

Reason 4:

Answers

Answer:

Step-by-step explanation:

reason 1:

opening of brackets to solve the expression

reason 2:

in multiplication order is followed i.e. the number always lead the variable in the expression

reason 3:

for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable

reason 4:

the solved and simplified expression is delivered as a result

The only way to do it is if you are in the t

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