PLEASE HELP WILL GIVE BRAINLIEST TO RIGHT ANSWER

Answer:

24, 897.12178 mi

Step-by-step explanation:

diameter is 7,925 mi

circumference = diameter *pi = 7,925*3.14= 24, 897.12178 mi

Answer:

d=7925mi

circumference of circle=πd

=3.14×7925

=24884.5 mi

If A is a symmetric matrix, then A³ is also a symmetric matrix.

To prove this, we can use the definition of a symmetric matrix, which is a matrix that is equal to its transpose. In other words, if A is a symmetric matrix, then A = A^T.

Now, let's look at A³:

A³ = A * A * A

We can replace each A with A^T, since they are equal:

A³ = A^T * A^T * A^T

Now, we can use the property that the transpose of a product of matrices is equal to the product of their transposes in reverse order:

A³ = (A^T * A^T * A^T)^T

A³ = (A^T)^T * (A^T)^T * (A^T)^T

Since the transpose of a transpose is the original matrix, we can simplify:

A³ = A * A * A

Therefore, A³ is also a symmetric matrix.

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Answer:

44 = 2 x 22, 2 is prime.

22 = 2 x 11, 2 and 11 are prime.

So, writing 44 as a product of primes is: 2 x 2 x 11, or 2^2 x 11.

Let me know if this helps!

Answer:

12/5

Step-by-step explanation:

The total number of students divided by the number of students who prefer dogs.

Mathematically:

48/20

=12/5

Therefore, that's the probability

The length of the third side is x= 8 (nearest rounded to the tenth).

The line segment in a triangle connecting the midway of two sides of the triangle is said to be parallel to its third side and is also half the length of the third side, according to the midpoint theorem.

By using the midpoint theorem, we get

The line is parallel to its third side x and is also half the length of the third side, therefore we can write

X= \(\frac{1}{2} * 15\)

X = 7.5

Rounded the value nearest tenth

X = 8

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Answer:

0.3%

Step-by-step explanation:

Answer:

0.3%

Step-by-step explanation:

Divide 6 by 2000

6/2000 = 0.003

One Way to Solve:

To convert any percentage to a decimal, move the decimal point two spaces back from the percentage

0.003 = 000.3%

A type of triangle congruence rule called Side-Side-Side (SSS) asserts that two triangles are congruent if their three sides are equal to their respective three sides of another triangle.

What is a triangle?

A triangle is a closed shape with three vertices, three sides, and three angles. △PQR is used to denote a triangle with the vertices P, Q, and R. Sandwiches and signboards in the shape of triangles are two of the triangles that are most frequently seen.

SSS congruence postulate:

A type of triangle congruence rule called Side-Side-Side (SSS) asserts that two triangles are congruent if their three sides are equal to their respective three sides of another triangle. When the dimensions of the matching sides and angles of two or more triangles match, the triangles are said to be congruent.

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Answer:

1.99 x 10 ^20 N

Step-by-step explanation:

Just substitute in the values given

F = (6.67x 10^-11) * (5.97x10^24)(7.36 x 10^22)  / ( 3.84 x 10^8) ^2

  = 1.99 x 10^20  N

Answer:

Step-by-step explanation:

1. Combine Like Terms

24 + 6a = 6 - 4a

+4a          +4a

24 + 10a = 6

-24            -24

10a = -18

___   ___

10      10

a= -1.8

Answer:

ITS A

Step-by-step explanation:

your welcome honey :)

Answer:

C

Step-by-step explanation:

y = - 4 + 7

y = (0, 3)

y = 3

This is because the x intercept can not be determined as gradient can only be set to zero and y intercept can only be determined through the equation -4+7 = 3

Answer:

...

Step-by-step explanation:

We get the null hypotheses mean value is equal to or greater than 71.5

We take alpha as 0.25 which gives,

the intermediate value of z is -1.96 (critical value)

now

\(z = (71.5 - 72)/(5.3)/\sqrt{50} = -0.6671\)

since z is greater than the critical value, we keep the null hypothesis that the mean age is greater than 71.5

Hence, the probability that the mean life expectancy will be less than 71.5 years is 0.0294 (rounded to 4 decimal places).

Given:Sample Size (n) = 50Mean (µ) = 72 yearsStandard Deviation (σ) = 5.3 yearsThe formula to find z-score = (x - µ) / (σ / √n).Here, x = 71.5We need to find P(X < 71.5), which can be rewritten as P(Z < z-score)To find P(Z < z-score), we need to find the z-score using the formula mentioned above.z-score = (x - µ) / (σ / √n)z-score = (71.5 - 72) / (5.3 / √50)z-score = -1.89P(Z < -1.89) = 0.0294 (using the standard normal distribution table)Hence, the probability that the mean life expectancy will be less than 71.5 years is 0.0294 (rounded to 4 decimal places).

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The total number of ways four selected fish out of 10 puts into different container is given by option a. 5040.

Total number of fish in a tank = 10

Total number of fish randomly selected = 4

Number of ways four selected fish puts into different types of container are,

Standard formula of permutation ,

ⁿPₓ = ( n! ) / ( n - x )!

¹⁰P₄

Substitute the value in the formula we have,

= ( 10! ) / ( 10 - 4 )!

= ( 10! ) / ( 6 )!

= ( 10 × 9 × 8 × 7 × 6! ) / 6!

= ( 10 × 9 × 8 × 7 )

= 5040

Therefore, the number of ways four fish puts into different container is equal to option a. 5040.

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Answer:

what do you mean by this I don't get it

Answer:

10

please mark brainiest

Answer:

We conclude that the first line number represents 1.5 + 2.5.

Step-by-step explanation:

Given the expression

\(1.5 + 2.5\)

It means the first segment must represent 1.5 units starting from 0.

Since we have to add 2.5 to 1.5, so the next segment must represent 2.5 units, starting from 1.5

Combining them would make

\(1.5 + 2.5=4\)

Now, if we observe the first number line,

Thus, we conclude that the first line number represents 1.5 + 2.5.

The correct line number is also attached below.

Ruth will pay for both the dress and the shoes £69 if a discount is given and she needs to pay the shipping and handling.

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Answer:

b (23) simplify fourth times a number of a number (55a ) approximate

Answer:

Mean: 20

Median: 16

Mode: No mode

Step-by-step explanation:

For the mean:

44 + 4 + 27 + 5 = 80

80/4 = 20

For the median:

5 + 27 = 32

32/2 = 16

For the mode:
None of the numbers are repeated.

The polynomial equation to represent the area of the parking lot is given by A = [ ( 100 )² - x² ] feet²

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the area of the parking lot after the changes be A

Now , the equation will be

The length of the parking lot L = 100 feet

The width of the parking lot B = 100 feet

So , the area of the parking lot = L x B = 100 x 100

The area of the parking lot = 10000 feet²

Now , the length of the parking lot is increased by x , L₁ = ( 100 + x ) feet

The width of the parking lot is decreased by x , W₁ = ( 100 - x ) feet

And , the area of the parking lot after the changes A = L₁ x W₁

Substituting the values in the equation , we get

The area of the parking lot after the changes A = ( 100 + x ) ( 100 - x )

On simplifying the equation , we get

The area of the parking lot after the changes A = ( 100 )² - x²  feet²

And , the area of the parking lot has now decreased by a factor of x²

Hence , the equation is A = [ ( 100 )² - x² ] feet²

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The initial position of the point W (-13, 9)

The transformed position of the point W' (-9, -13)

when transformed 90 degrees counterclockwise, the coordinates of the original position is swapped and the y-coordinate is negated

That is if the W coordinate is (x,y), the transformation W coordinate in 90 degrees counter-clockwise will be (-y, -x )

Since W is (-13, 9)

Then W' will be ( -9 , -13)...In 90 degrees counterclockwise

Answer:

Step-by-step explanation:

Good luck

Answer:

a

Step-by-step explanation:

heh math

The speed of an airplane is 208 miles per hour.

The speed of wind is 48 miles per hour.  

The distance covered by airplane against the wind = D = 640 miles

The time taken to cover D distance = T = 2.5 hours

Again

The distance covered by airplane with the wind = d = 460 miles

The time taken to cover d distance = t = 2 hours

Let The speed of the airplane = x mile per hour

and the speed of wind = y miles per hour

we know that -

∵ Speed = distance/ time

speed of airplane while moving against the wind

x - y =   D/T

Or, x - y =   640/4

Or, x - y = 160 mph        ........1

speed of airplane while moving with the wind

x + y =   d/t

Or, x + y = 640/ 2.5

Or, x + y = 256 mph        ........2

Now, Solving eq 1 and eq 2, we get,

(x - y) + (x + y) = 160mph + 256mph

Or, (x + x) + ( - y + y) = 416 mph

Or, 2 x + 0 = 416 mph

∴  x = 416/2

i,e x = 208 mph

So, The speed of airplane = x = 208 miles per hour

Now, substitute the value x = 208 in equation 1, we get,

∵  x - y = 160mph

So, 208 mph - y = 160 mph

Or, y = 208 mph - 160 mph

i.e y = 48 mph

So, The speed of wind = y = 48 miles per hour

Hence, The speed of an airplane is 208 miles per hour and the speed of wind is 48 miles per hour.

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The personal banker given lending arrangement, the APR for your cousin's buddies who borrowed $20 and repaid $40 at the end of the month would be 120%

The annual percentage rate (APR) for your cousin's lending arrangement,  to make a few assumptions. That each lending transaction occurs on the first day of the month and is repaid on the last day of the same month. Based on these assumptions, calculate the effective APR as follows:

Calculate the interest charged for a $20 loan over one month:

Interest = $40 (repaid amount) - $20 (loaned amount) = $20

Divide the interest by the loan amount and multiply by 100 to get the monthly interest rate:

Monthly Interest Rate = (Interest / Loan Amount) ×100 = ($20 / $20) ×100 = 100%

Multiply the monthly interest rate by 12 to obtain the annual interest rate:

APR = Monthly Interest Rate ×12 = 100% ×12 = 120%

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Answer:

Step-by-step explanation:

Given the vector, u =<4, -1>, determine the magnitude.

The magnitude of a vector is represented as:

Therefore, for the given vector:

The final values of the variables are as follows:

x = 2

y = 42.68

z = B

a = 24

Let's go through each line of code to determine the values stored in the variables.

1. θx = 24, y = 42.68, z = B, a = 12

  This line seems to define the initial values of the variables.

2. O x = 48, y = 42.68, z = int main() B, a = 12

  This line doesn't seem to be a valid syntax. It appears to be a mix of variable assignments and function declarations.

3. O x = 48, y = 42.68, z = int a = 12; B, a = 48 funcone(a);

  This line is also not a valid syntax. Similar to the previous line, it seems to mix variable assignments and function calls, but the structure is unclear.

4. O x = 24, y = 42.68, z = B, a = 24

  This line appears to redefine the values of the variables x and a, setting them to 24.

5. O x = 46, y = 12.34, z = void funcone(int& x, double y, char z)

  This line seems to be a function declaration with no assignment to the variables.

6. x = 2 = x;

  This line tries to assign the value 2 to the variable x, and then assigns the value of x (which is 2) back to x. This is an unnecessary assignment, and the value of x remains 2.

The final values of the variables are as follows:

x = 2

y = 42.68

z = B

a = 24

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Answer:

72

Step-by-step explanation:

12x12 is 144

and 144/2 is 72

Answer:

72

Step-by-step explanation:

12 X 12 = 144

Then you divide the answer to 2 and you get 72

You're Welcome! :D

Step-by-step explanation:

I would suggest that she studies or do a cost analysis of what it will cost her to transport to the library to request for the book and return it, if it is not expensive as compared to the cost of the book she should travel down to request for it. else she should purchase the book

Or

Fareeda can simply check if the second library has a distant library services so that the book can be either

1. Sent to her home or placement address, or

2.Scans of book chapters and articles be emailed to her.

Answer:

canabis

Step-by-step explanation: