GUYS IVE ASKED THIS LIKE 5 TIMES AND HAVE GOTTEN NO ANSWER I NEED HELP

The equation which represents the circle is x²+(y-3)²=36. The correct option is A.

Given that the circle have diameter 12 units and a center that lies on the y-axis.

A circle is a closed curve drawn from a fixed point called the center, and all points on the curve are equidistant from the midpoint of the center.

The standard form for finding the equation of a circle is expressed in the form is

(x-a)²+(y-b)²=r²             ......(1)

Where (a,b) is the center and r is the radius.

Given that the diameter is 12.

So, the radius is 12/2=6

It is also given that center lies on the y-axis therefore the center will be (0,3).

Now, we will substitute these values in equation (1), we get

(x-0)²+(y-3)²=6²

x²+(y-3)²=36

Hence, the equation which represents the circle with diameter 12 units and center lies on the y-axis is x²+(y-3)²=36.

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Therefore, the area of the composite figure is  41.2 square meter.

To find the area of the figure we need to calculate the area of the composite figure made of a triangle, square and semicircle.

To calculate the area of a triangle

Area= base × height/2

base is 6 feet.

height of 3 feet

Area = 6 × 3/2 = 9 square feet.

Area of semicircle

area of semicircle is area of circle/2 = πr²/2

= π × 3 ×3/2 = 9π/2.

= 22/7 × 9= 28.2 square meter

Area of square

Area of square = L×L.

area= 2×2 = 4 meter²

The area of the figure = area of square + area of triangle + area of semicircle.

Area = 4+ 9 +9π/2.

Therefore, the area of the composite figure is  41.2 square meter.

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Answer:

the answer is b

Step-by-step explanation:

first i did 18 divided by 6=3

then 8x7=56

3+56=59

59-12=47

8x2=16

47+16=63

Answer:

B.) 63

Step-by-step explanation:

18 divided by 6 = 3

8x7=56

3+56=59

59-12=47

8x2=16

47+16=63

Answer:

650,000

Step-by-step explanation:

If the figures are similar, it means that their corresponding angles are equal and their corresponding sides are proportional. Therefore, we can set up a proportion with the corresponding sides and solve for x.

Let's say that the corresponding sides we are comparing have lengths a and b in one figure and a' and b' in the other figure. Then, we can write:

a/b = a'/b'

We can use this proportion to find x if we have the values of the other sides. For example, if we know that a = 5, b = 8, and a' = 10, we can plug in these values and solve for x:

5/8 = 10/b'

b' = 8*10/5 = 16

Now, we know that b' = 16, which means that x is the length of the remaining side in the figure. Depending on the specific problem, we may need to use additional information or trigonometry to find x, but setting up the proportion is always the first step when working with similar figures.

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The complete question is:

how to use the concept of similarity between figures to set up a proportion and solve for an unknown length, represented as 'x', using the corresponding sides of the figures.

The combined present worth of the costs associated with the proposed bridge design, including construction and annual operating costs, is $10,583,333.

To calculate the combined present worth of costs, we need to consider the construction cost and the annual operating cost over the infinite life of the bridge. We will use the concept of present worth, which is the equivalent value of future costs in today's dollars.

The present worth of the construction cost is simply the initial cost itself, which is $9,000,000. This cost is already in present value terms.

For the annual operating cost, we need to calculate the present worth of perpetuity. A perpetuity is a series of equal payments that continue indefinitely. In this case, the annual operating cost of $700,000 represents an equal payment.

To calculate the present worth of the perpetuity, we can use the formula PW = A / MARR,

where PW is the present worth, A is the annual payment, and MARR is the minimum attractive rate of return (also known as the discount rate). Here, the MARR is given as 12%.

Plugging in the values, we have PW = $700,000 / 0.12 = $5,833,333.

Adding the present worth of the construction cost and the present worth of the perpetuity, we get $9,000,000 + $5,833,333 = $14,833,333.

However, since we are looking for the combined present worth, we need to subtract the salvage value, which is zero in this case. Therefore, the combined present worth of the costs associated with the proposed bridge design is $14,833,333 - $4,250,000 = $10,583,333, rounded to the nearest dollar.

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The mean of the given discrete probability distribution is 11.34.

To find the mean of a discrete probability distribution, you need to multiply each value by its corresponding probability and then sum them up.

Let's calculate the mean using the given probability distribution:

Mean = (0.2 * 5) + (0.1 * 21) + (0.4 * 5.6) + (0.3 * 20)

Mean = 1 + 2.1 + 2.24 + 6

Mean = 11.34

Therefore, the mean of the given discrete probability distribution is 11.34.

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Answer:

diamond or teeth or chromium

Total price paid by Michael for the basket of mangoes is $4.48.

For the calculation of total price, price of sales tax will be added with selling price. Forming the equation -

Total price = 4 + 12%×4

Calculating the percentage of sales tax on Right Hand Side of the equation

Total price = 4 + 12×4/100

Solving the percentage part on Right Hand Side of the equation

Total price = 4 + 0.48

Performing addition on Right Hand Side of the equation

Total price = $4.48

Hence, Michael has to pay $4.48 after addition of sales tax for the basket of mangoes.

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The formula for the real portion of a complex function can be used to write re(e(1/z)) in terms of x and y: f(z) + f(z*) = re(f(z)) / 2

where z* denotes z's complex conjugate.

By applying this formula to the provided function, we obtain:

re(e(1/z)) = (e(1/z) + e(1/z*)) / 2

re(e(1/z)) = (e(x-iy) + e(x+iy)) / 2

re(e(1/z)) = (ex (cos y + I sin y) + ex (cos y - I sin y)) /2

As a result, re(e(1/z)) can be represented as ex cos y in terms of x and y.

Because it fulfills Laplace's equation, which asserts that the total of a function's second-order partial derivatives is equal to zero, this function is harmonic in every domain excluding the origin.

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Answer: 2m+1/2

Step-by-step explanation: 2m=-6n+3

2m-3=-6n

(2m-3)/-6

n= 2m+1/2

The proportion of the variation in the dependent variable y that is explained by the estimated regression equation is measured by the coefficient of determination, R-squared.

In simple linear regression, the coefficient of determination (R-squared) is used to measure the proportion of the variation in the dependent variable (y) that is explained by the estimated regression equation. It is calculated as the ratio of the explained variation to the total variation. Mathematically, it can be represented as:

R-squared = Explained variation / Total variation

where, explained variation is the sum of squares of the regression (SSR) and total variation is the sum of squares of the residuals (SSE). Therefore, R-squared can also be written as:

R-squared = SSR / (SSR + SSE)

The value of R-squared ranges from 0 to 1, where a value of 1 indicates that all the variation in the dependent variable is explained by the regression equation. A higher value of R-squared indicates a better fit of the regression line to the data.

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Answer: 80 degrees

Step-by-step explanation:

They are corresponding angles so they have the same degree

Answer:

as root 3 into root 3 is root 9

Answer: the answer is NO

Step-by-step explanation:

Khan academy

Using the relation between velocity, distance and time, it is found that her average speed for the final 30 miles is of 55.56 mph.

Velocity is distance divided by time, that is:

\(v = \frac{d}{t}\)

Simone travels 90 miles at an average speed of 40 mph, hence the time is given by:

\(t_1 = \frac{90}{40} = 2.25\)

She then travels a further 30 miles, with an average speed for the journey of 43 mph. Hence, she traveled 90 + 30 = 120 miles, and the total time is given by:

\(t = \frac{120}{43} = 2.79\)

Hence, in the second part, she traveled 30 miles in 2.79 - 2.25 = 0.54 hours, so the velocity is given by:

\(v = \frac{d}{t} = \frac{30}{0.54} = 55.56\)

Her average speed for the final 30 miles is of 55.56 mph.

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Answer:

C

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

you are correct already

The general solution is y = c1 sin(2x) + c2 cos(2x).

To find y2​, we can use the fact that sin2x is a solution to the homogeneous ODE y′′ + 4y = 0. We know that the cosine function has the derivative of -sin, so we can try y2​ = cos(2x).

Now, we can verify if y2​ = cos(2x) is a solution to the ODE by substituting it into the equation.

Taking the second derivative of y2​ = cos(2x), we get y2'' = -4cos(2x).

Plugging y2​ and its second derivative back into the ODE y′′ + 4y = 0, we have:

-4cos(2x) + 4cos(2x) = 0.

This equation holds true, which confirms that y2​ = cos(2x) is a solution.

Therefore, y1​ = sin(2x) and y2​ = cos(2x) form a fundamental set of solutions. The general solution is given by y = c1 sin(2x) + c2 cos(2x), where c1 and c2 are arbitrary constants.

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Answer:

Hi how are you doing today Jasmine

Answer:

x= -1/3•log10(9/2)

x= -0.218

Answer:

(1) when x is 0 y=5/2 and when y is 0 x=5

(2)Graph the points : (0 , 5/2) and (5 , 0)

(3)the slope is   -1/2

Step-by-step explanation:

Given the function f(x):

And f(-2) = 10

So, we will substitute with x = -2

solve the equation to find p

So, the answer will be the first option p = 1

Answer:

I think It's A and B. With you best of luck.

Step-by-step explanation:

If the password contains exactly 7 letters and letters cannot be used more than once, the number of possible passwords will be the number of ways to choose 7 letters out of the total 26 letters in the alphabet without repetition.

To find out the number of ways to choose 7 letters out of the total 26 letters in the alphabet, we will use the formula for combinations without repetition which is given as, C(n,r) = n! / (r!(n-r)!), where n is the total number of objects, r is the number of objects to be chosen from n and ! is the factorial.

Let's put the values, n = 26 and r = 7C(26,7) = 26! / (7!(26-7)!) = 26! / (7!19!) = (20*21*22*23*24*25*26) / (1*2*3*4*5*6*7)The above expression can be simplified as follows: (20*21*22*23*24*25*26) / (1*2*3*4*5*6*7) = 20*23*25*13 = 149500

Summary: There are 149500 possible passwords of 7 letters from a total of 26 letters if letters cannot be used more than once.

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Answer:

c. 9

Step-by-step explanation:

-8x+4=-6x-12-2

-8x+6x=-12-2-4

-2x=-18

2x=18

x=18/2

x=9

Answer:

C. \(9\)

Step-by-step explanation:

\(-4(2x -1) = -6(x +2) -2 \\ -8x +4 = -6x -12 -2 \\ -8x +4 = -6x -14 \\ -8x +4 +6x = -6x -14 +6x \\ - 2x +4 = -14 \\ - 2x +4 -4 = -14 -4 \\ -2x = -18 \\ \frac{-2x}{-2} = \frac{-18}{-2} \\ x = 9\)

Area of square = Side × Side

⇛Area = 120 cm × 120 cm

⇛Area = 14400 cm²

Hence , the area of square is 14400 cm²

Answer:

14400

Step-by-step explanation:

Area for square formula: B × H

Since a square has equal sides for each side, you will multiply 120 by itself.

120 × 120 = 14400

The area of the square is 14400.

Hope this helped.

Answer:

19.5625

Step-by-step explanation:

To find the mean, you add all of your values together and divide by the number of values you have.

Here are the values in the dot plot listed:

12, 12, 15, 15, 15, 15, 16, 18, 20, 20, 22, 25, 25, 25, 29, 29

To find the mean:

(12 + 12 + 15 + 15 + 15 + 15 + 16 + 18 + 20 + 20 + 22 + 25 + 25 + 25 + 29 + 29)/16 = 19.5625

The commute times are shorter for City A but more predictable for City B. Thus, option c is correct.

In mathematics, an interval is a set of real numbers with the property that any number that lies between two numbers in the set is also included in the set. An interval can be written using interval notation, which uses parentheses, square brackets, or a combination of both to indicate whether the endpoints of the interval are included or excluded.

The interval [1, 5] represents a set of real numbers that includes all the numbers between 1 and 5, including 1 and 5 themselves. The square brackets indicate that the endpoints of the interval are included in the set. The left bracket "[" indicates that the interval includes the number 1, and the right bracket "]" indicates that the interval includes the number 5.

In interval notation, we can write this interval as:

[1, 5] = {x | 1 ≤ x ≤ 5}

This means that the set of all real numbers x, such that x is greater than or equal to 1 and less than or equal to 5, is equal to the interval [1, 5].

Graphically, we can represent this interval on a number line as follows:

 |-----|-----|-----|-----|-----|

 0     1     2     3     4     5

The interval [1, 5] is the closed interval between 1 and 5, including both endpoints, so we use closed circles to indicate that the endpoints are included in the interval:

 |-----|-----|-----|-----|-----|

 0     1     2     3     4     5

       [     ○-----○     ]

            1         5

The interval includes all the numbers on the number line between 1 and 5, including 1 and 5 themselves, but no other numbers outside of that range.

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Answer:

- 39

Step-by-step explanation:

Step 1:

2x + 6 = - 72         Equation

Step 2:

2x = - 78      Subtract 6 on both sides

Step 3:

x = - 78 ÷ 2         Divide

Answer:

x = - 39

Hope This Helps :)

Answer:

2x+6=-72

-6 -6

6 cancles out on the left side.

2x=-78

divide 2 on each side

66/2=-39

The value of the total area of the shaded region are,

⇒ 42 units²

We have to given that;

Sides of rectangle are,

AB = 9

BC = 6

Hence, The area of rectangle is,

⇒ 9 x 6

⇒ 54 units²

And, Area of triangle is,

A = 1/2 × 4 × 6

A = 12 units²

Thus, The value of the total area of the shaded region are,

⇒ 54 - 12

⇒ 42 units²

So, The value of the total area of the shaded region are,

⇒ 42 units²

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