What is the domain of y = cos^-1 x?

[–1, 1]
[0, π]
Left-bracket negative StartFraction pi Over 2 EndFraction, StartFraction pi Over 2 EndFraction right-bracket
(–∞, ∞)

Answer: y = (-28)x + 14

Step-by-step explanation:

The equation for the line tangent at point (a, b) can be found using the formula y = mx + c, where m is the slope of the line and c is the y-intercept. At point (6, 14), we need to find the value of m.

We start by finding the derivative of the original function g(x). Its derivative is given by:

dg(x)/dx=7/(x^2-3x+1)

Then, substitute x = 6 into the derivative expression to obtain:

dg(6)/dx = d/dx [7 * ln|x-3| ] evaluated at x = 6 = 7/3

Next, evaluate the original function g(x) at x = 6 to get g(6) = 7 * ln |6 - 3| / (6 - 3) = 7 * ln 3.

Since we know the coordinates of the point of tangency (6, 14), we can substitute them into the general form of the linear equation y = mx + c:

14 = 7 * 6 + c

14 = 42 + c

c = -28

The final equation of the line tangent at point (6, 14) is therefore:

y = (-28)x + 14

The radius of the semicircle protractor is approximately 4.693 cm.

Given,Perimeter of a semicircle protractor = 14.8 cm.

To find:The radius of a semicircle protractor.Solution:We know that the perimeter of a semicircle protractor is the sum of the straight edge of a protractor and half of the circumference of the circle whose radius is the radius of the protractor.

Circumference of a circle = 2πrWhere, r is the radius of the circle.If the radius of the semicircle protractor is r, then Perimeter of a semicircle protractor = r + πr [∵ half of the circumference of a circle =[tex](1/2) × 2πr = πr]14.8 = r + πr14.8 = r(1 + π) r = 14.8 / (1 + π)r ≈ 4.693[/tex] cm.

for more questions on semicircle protractor

https://brainly.com/question/30188078

#SPJ8

The values of p and q are 1 and 3, respectively.

Given the equation x^2-4x + 1 = (x-p)- q, we can compare the coefficients of the corresponding terms on both sides of the equation.

We compared the coefficients of the x^2 terms on both sides of the equation. The coefficient of the x^2 term on the left-hand side is 1, and the coefficient of the x^2 term on the right-hand side is 1. This means that the two terms are equal, and therefore p = 1.

We compared the coefficients of the x terms on both sides of the equation. The coefficient of the x term on the left-hand side is -4, and the coefficient of the x term on the right-hand side is -1. This means that the two terms are equal, and therefore q = 3.

For such more question on values:

https://brainly.com/question/26352252

#SPJ8

Answer/ Step-by-step explanation:

---

Proportional relationships are relationships between two variables where their ratios are equivalent.

---

Lets take a look at example one attached image:

The constant of proportionality is the value of y when x = 1 in a proportional relationship.

On which line does y = 1/2 when x = 1?

Only line C has a y- value less than 1 when x = 1, but how can we be sure that the constant of proportionality is exactly 1/2?

If the constant of proportionality of a proportional relationship is 1/2 then:

y = 1/2x (like rise over run (slope), rise up 1 unit, and run right 2 units)

We can try the point (2, 1), and plug in the values into the equation, where x = 2, y = 1.

(1) = 1/2(2)

1 = 1

Line C has a constant proportionality of 1/2 between x and y.

--------

Example 2, 3, and 4 is a worked out example on khan academy (attached images)

Answer: The two solutions are (2, 4) and (-1, 1).

Step-by-step explanation:

The given is a system of equations, y = x + 2, and, y = x^2

A system of equations comprises two or more equations and seeks common solutions to the equations.

To solve you can use substitution. And by doing so you can replace y of one equation with what the other equation equals:

y = x + 2

y = x^2

->   x + 2 = x^2

Now lets get all variables and constant to one side of the equation, set it equal to zero.

x + 2 = x^2

-x -2           -x -2

x^2 -x -2 = 0

Lets factor to find the solution

Factoring is used to simplify an algebraic expression by finding the greatest common factors that are shared by the terms in the expression.

We can factor, x^2 -x -2 = 0, into:

(x - 2)(x + 1) = 0

-------

SIDE NOTE:

If confuse on factoring please see attached image.

------

with (x - 2)(x + 1) = 0 we can find the solution by setting each component in the parentheses to 0:

x - 2 = 0

x + 1 = 0

Now you must solve for x.

x - 2 = 0

+2      +2

x = 2

x + 1 = 0

  -1      -1

x = -1

x = 2 and x = -1

However, we are not done yet, we need to find what y is, and by doing so we can plug in the x values we got to find the corresponding y value to create points (coordinates).

-

When x = 2

y = x + 2

y = (2) + 2

y = 4

(2, 4)

-

When x = -1

y = x + 2

y = -1 + 2

y = 1

(-1, 1)

-

The two solutions are (2, 4) and (-1, 1).

Answer: x = 3 and x = -6

Step-by-step explanation:

the first step is to square root both sides of the equation to get rid of the exponent (2) on the left side of the equation, however lets break it down:

[tex](2x + 3)^2 = 81\\\\[/tex]

81 can be rewritten as 9^2

[tex](2x + 3)^2= 9^2[/tex]

and now lets square root both sides:

[tex]\sqrt{(2x+3)^2} =\sqrt{9^2}[/tex]

The squares (the exponent 2) cancels out with the square root:

2x + 3 = +/- 9

now lets isolate x by subtracting 3 from both sides:

2x + 3 = +/- 9

       -3  -3

2x = -3 +/- 9

2x = -3 + 9

2x = 6

2x = -3 - 9

2x = 12

And after simplifying, you can divide two on both sides:

2x = 6

/2    /2

x = 3

2x = -12

/2    /2

x = -6

x = 3 and x = -6

Answer:

-5/6

-2/3

Step-by-step explanation:

it's easiest to write the line in the following form:

y=mx+b

where m is the slope

and b is the y intercept

In other words, we want to get y by itself

5x+6y= -4

6y= -4-5x

y=(-4-5x)/6

y=(-5/6)x-4/6

Thus, -5/6 is the slope

and -4/6= -2/3 is the y intercept

The solution above is graphed correctly in the last option choice is x > -6

We have been given the equation 2x + 3> -9

In order to graph the solution, we must find the value of x

2x + 3 > -9

Subtract three from both sides

-9 - 3 = -12

2x > -12

Divide both sides by 2

x > -6

Examine the inequality symbol to figure out how to graph the solution. If the sign is "greater than," graph the line to the left. If it was "less than," you would draw a straight line.

We have the "greater than" symbol in our issue, which implies we will graph our line to the right, and since we start our line at -6, we know the last choice is the correct solution.

For such more question on solution:

https://brainly.com/question/24644930

#SPJ8

The following question may be like this:

Which graph shows the solution set for 2x+3>-9.

Answer: 1000

Step-by-step explanation:

If one person can pick up a plate every 10 seconds, then the rate of picking up plates can be represented as 1 plate/10 seconds.

When two people are picking up plates, the rate doubles, so it becomes 2 plates/10 seconds or 1 plate/5 seconds.

To find how long it will take for 200 people to pick up plates, we need to use the formula:

time = amount ÷ rate

Plugging in the values, we get:

time = 200 plates ÷ (1 plate/5 seconds)

time = 200 plates × 5 seconds/plate

time = 1000 seconds

Therefore, it will take 1000 seconds for 200 people to pick up plates at a faster rate.

I hope that this answer has helped you!

The valid numbers that satisfy all the given inequalities are -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6.

Let's solve each inequality step by step:

1. Two less than a number (x) is no more than 5:

The inequality is given as x - 2 ≤ 5. Adding 2 to both sides, we get x ≤ 7. This means that any number less than or equal to 7 satisfies the inequality.

2. Seven subtracted from 4 times a number (x) is more than 13:

The inequality is given as 4x - 7 > 13. Adding 7 to both sides, we get 4x > 20. Dividing both sides by 4, we obtain x > 5. So any number greater than 5 satisfies the inequality.

3. The sum of two times a number (x) and -2 is at least 8:

The inequality is given as 2x - 2 ≥ 8. Adding 2 to both sides, we get 2x ≥ 10. Dividing both sides by 2, we have x ≥ 5. So any number greater than or equal to 5 satisfies the inequality.

4. Four added to 3 times a number (x) is less than 19:

The inequality is given as 3x + 4 < 19. Subtracting 4 from both sides, we get 3x < 15. Dividing both sides by 3, we obtain x < 5. So any number less than 5 satisfies the inequality.

Based on the above solutions, the valid numbers that satisfy all the given inequalities are -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6. These numbers can be represented on a number line graph by marking the appropriate points and shading the corresponding regions.

For more such questions inequalities,click on

https://brainly.com/question/30238989

#SPJ8

The scaled triangle will be larger than the initial size by a factor 2.

The scaled square will be smaller than the initial side by a factor 4

Dilation refers to a transformation that changes the size of a geometric figure without altering its shape.

Dilation involves scaling an object by a certain factor, that might result in  enlarging or reducing its dimensions uniformly in all directions.

Based on the given diagram, the new length and size of the object is calculated as follows;

For the triangle, (measure the length with ruler)

For the square; (measure the length with ruler)

Learn more about dilation here: https://brainly.com/question/20482938

#SPJ1

Avoidable costs are costs that can be eliminated if the activity that caused them is discontinued. The examples are listed.

Direct materials: Direct materials are the materials that go into a product and can be easily traced to it. For example, the wood used to make a table is a direct material. If a company decides to stop making tables, it can avoid the cost of buying wood.

Direct labor: Direct labor is the labor that is directly involved in making a product. For example, the wages paid to the workers who assemble a car are direct labor. If a company decides to stop making cars, it can avoid the cost of paying direct labor.

Variable overhead: Variable overhead is the overhead costs that vary with the number of units produced. For example, the cost of electricity used to power a factory is a variable overhead cost. If a company decides to stop producing a product, it can avoid the variable overhead costs associated with that product.

Sunk costs: Sunk costs are costs that have already been incurred and cannot be recovered. For example, the cost of research and development for a new product is a sunk cost. If the company decides not to launch the product, it cannot recover the cost of research and development.

Find out more on Avoidable Costs here: https://brainly.com/question/29807108

#SPJ1

Answer:

The product of each pair of complex conjugates is:

(3 + 8i)(3 – 8i) = (9 - 8^2) + i(9 + 8^2) = (-81) + i(99) = (-81) + i(11) = (-81) + 11i

And

(4 + 5i)(4 – 5i) = (16 - 25) + i(16 + 25) = (-9) + i(41) = (-9) + 41i

So, the products are:

(-81) + 11i

and

(-9) + 41i

Answer:

73

41

Step-by-step explanation:

Answer: 33.7

Step-by-step explanation:

Let the height of the house be h, and the distance from the foot of the rock to the house be x.

From the given information, we have the following diagram:

```

*

/ \

/ \

/ 63° \

/ \

/θ \

A ----------------------- B

70m x

Angle A = 60° (complementary to the angle of elevation of the foot of the house)

Angle B = 63° (angle of elevation of the top of the house)

Using trigonometry, we have:

tan(63°) = h/x ----(1) (for triangle AOB)

tan(60°) = h/(x + 70) ----(2) (for triangle ABD)

Solving equations (1) and (2) simultaneously, we get:

h = (70 tan(63°) - 70 tan(60°)) meters

h ≈ 33.7 meters (rounded to one decimal place)

Therefore, the height of the house is approximately 33.7 meters.

Using concentration-volume relationship, 30 ml of potassium chloride should be added to the IV solution.

To calculate the amount of potassium chloride to be added to the IV, we need to consider the concentration of the potassium chloride ampoules and the desired final concentration in the IV solution.

Given:

Physician's order: Add 60mEq of potassium chloride to 1000ml D5W

Potassium chloride concentration in ampoules: 40 mEq per 20 ml

Desired final concentration: Not specified

To determine the amount of potassium chloride to be added, we can set up a proportion based on the mEq (milliequivalents) of potassium chloride:

This is done using concentration-volume relationship

40 mEq / 20 ml = 60 mEq / x ml

Cross-multiplying, we have:

40 mEq * x ml = 60 mEq * 20 ml

Simplifying:

40x = 1200

Dividing both sides by 40:

x = 30 ml

Learn more on concentration-volume relationship here;

https://brainly.com/question/28564792

#SPJ1

Answer: 50$

Step-by-step explanation:

To calculate the amount the college student can spend on fast food in December, we need to find the total amount he can spend in 5 months, given that he wants to spend an average of $50 per month.

Let's start by finding the total amount he can spend in 5 months:

Total amount = 5 x $50 = $250

Now, we can subtract the amount he spent in the other 4 months from the total amount to find out how much he can spend in December:

The amount he can spend in December = Total amount - Amount spent in 4 months

Amount spent in 4 months = $35 + $90 + $15 + $60 = $200

Amount he can spend in December = $250 - $200 = $50

Therefore, the college student can spend $50 on fast food in December to meet his goal of spending an average of $50 per month on fast food for the remaining 5 months of the year.

Answer:

The length should be 11 feet and the width should be 6 feet. 11 feet is 5 feet more than 6 feet. 11 feet times 6 feet is 66 square feet.

Step-by-step explanation:

Answer:

7: 63

8: 73

arithmetic sequence

y = 10x - 7

or f(n) = 10x -7

or

[tex]a_{n}[/tex] = 3 + (n-1)10

Step-by-step explanation:

the output increases by 10 every time that the input increases by 1.  That gives us our common difference or slope.  The y intercept is -7. That is the value is you worked backwards until you get to n = 0.  The initial value  is 3.  That is when n is 1.

When n is 3, f(n) is 23

When n is 2, f(n) is 13

When n is 1, f(n) is 3

When n is 0, f(n) is -7

I am not sure if this is clear.  I am assuming that you have a lot of knowledge of linear equations and how to write arithmetic sequence.  If my explanation is confusing it is me and not you.

Answer:

a. 63,73

b. Arithmetic sequence

c.t(n)=10n-7

Explanation:

a. Here is the completed table:

n | t(n)

4 | 33

5 | 43

6 | 53

7 | 63

8 | 73

b.

The type of sequence is arithmetic.

An arithmetic sequence is a sequence of numbers where the difference between any two consecutive terms is constant.

In this case, the difference between any two consecutive terms is 10.

c.

The equation for the arithmetic sequence is:

t(n)=a+(n-1)d

where:

For Question:

Now

equation becomes:

t(4) = a+(4-1)10

33=a+30

a=33-30

a=3

Now, the Equation becomes

t(n) = 3+(n-1)10

t(n) = 3+10n-10

t(n)=10n-7

Answer:

a. 0.9375, 0.46875

b. geometric sequence

c. equation: [tex] 7.5 * (\frac{1}{2})^(n-1)[/tex]

Step-by-step explanation:

a.

The table can be finished as follows:

n t(n)

1 7.5

2 3.75

3. 1.875

4. 0.9375

5 0.46875

b.

The type of sequence is a geometric sequence.

A geometric sequence is a sequence of numbers where the ratio between any two consecutive terms is constant.

In this case, the ratio between any two consecutive terms is 3.75/7.5=½ ,

so the sequence is geometric.

c.

The equation for the sequence is t(n) = 7.5 * (1/2)^n.

This equation can be found by looking at the first term of the sequence (7.5) and the common ratio (1/2).

t(1) = 7.5

t(2) = 7.5 * (1/2) = 3.75

t(3) = 7.5 * (1/2)^2 = 1.875

The equation can also be found by looking at the general formula for a geometric sequence,

which is [tex]t(n) = a*r^{n-1}[/tex]

In this case,

t(n) =[tex] 7.5 * (\frac{1}{2})^{n-1}[/tex]

This is the required equation.

Answer:

[tex]\textsf{a.}\quad \begin{array}{|c|c|c|c|c|c|}\cline{1-6}\vphantom{\dfrac12} n&1&2&3&4&5\\\cline{1-6}\vphantom{\dfrac12}t(n)&7.5&3.75&1.875&0.9375&0.4687\\\cline{1-6}\end{array}[/tex]

[tex]\textsf{b.} \quad \textsf{Geometric sequence.}[/tex]

[tex]\textsf{c.} \quad t(n)=7.5(0.5)^{n-1}[/tex]

Step-by-step explanation:

Before we can complete the table, we need to determine if the sequence is arithmetic or geometric.

To determine if a sequence is arithmetic or geometric, examine the pattern of the terms in the sequence.

Calculate the difference between consecutive terms by subtracting one term from the next:

[tex]t(2)-t(1)=3.75-7.5=-3.75[/tex]

[tex]t(3)-t(2)=1.875-3.75 = -1,875[/tex]

As the difference is not common, the sequence is not arithmetic.

Calculate the ratio between consecutive terms by dividing one term by the previous term.

[tex]\dfrac{t(2)}{t(1)}=\dfrac{3.75}{7.5}=0.5[/tex]

[tex]\dfrac{t(3)}{t(2)}=\dfrac{1.875}{3.75}=0.5[/tex]

As the ratio is common, the sequence is geometric.

To complete the table, multiply the preceding term by the common ratio 0.5 to calculate the next term:

[tex]t(4)=t(3) \times 0.5=1.875 \times 0.5=0.9375[/tex]

[tex]t(5)=t(4) \times 0.5=0.9375 \times 0.5=0.46875[/tex]

Therefore, the completed table is:

[tex]\begin{array}{|c|c|c|c|c|c|}\cline{1-6}\vphantom{\dfrac12} n&1&2&3&4&5\\\cline{1-6}\vphantom{\dfrac12}t(n)&7.5&3.75&1.875&0.9375&0.4687\\\cline{1-6}\end{array}[/tex]

To find an equation for the sequence, use the general form of a geometric sequence:

[tex]\boxed{\begin{minipage}{5.5 cm}\underline{Geometric sequence}\\\\$a_n=ar^{n-1}$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the first term. \\\phantom{ww}$\bullet$ $r$ is the common ratio.\\\phantom{ww}$\bullet$ $a_n$ is the $n$th term.\\\phantom{ww}$\bullet$ $n$ is the position of the term.\\\end{minipage}}[/tex]

In this case, the first term is the value of t(n) when n = 1, so a = 7.5

We have already calculated the common ratio as being 0.5, so r = 0.5.

Substitute these values into the formula to create an equation for the sequence:

[tex]t(n)=7.5(0.5)^{n-1}[/tex]

Matching of the equations of the Ellipses to their equivalent equations in standard form are:

The general form of  x²/3² + (y - 2)²/2² = 1 is 4x² - 36y + 9y² = 0

The general form of (x + 7)²/7² + y²/6² = 1 is 36x² + 504x + 49y² = 0

The general form of x²/6² + (y + 4)²/4² = 1  is 16x² + 288y + 36y² = 0

The general form of (x - 3)²/3² + y²/5² = 1  is 25x² - 150x + 9y² = 0

The general form and the standard form of the ellipse are:

- The general form is: Ax² + Bxy + Cy² + Dx + Ey + F = 0

- The standard form is: (x - h)²/a² + (y - k)²/b² = 1

1) x²/3² + (y - 2)²/2² = 1

Expanding gives:

x²/9 + (y - 2)²/4 = 1

Multiply through by 36 to get:

4x² + 9(y - 2)² = 36

Expand bracket to get:

4x² + 9y² - 36y + 36 = 36

Subtract 36 from both sides to get:

4x² - 36y + 9y² = 0

The general form of  x²/3² + (y - 2)²/2² = 1 is 4x² + 9y² - 36y = 0

2) (x + 7)²/7² + y²/6² = 1

(x + 7)²/49 + y²/36 = 1

Multiply through by 1764 to get:

36(x + 7)² + 49y² = 1764

Expand bracket to get:

36x² + 504x + 1764 + 49y² = 1764

Subtract 1764 from both sides to get:

36x² + 504x + 49y² = 0

The general form of (x + 7)²/7² + y²/6² = 1 is 36x² + 504x + 49y² = 0

3) x²/6² + (y + 4)²/4² = 1

x²/36 + (y + 4)²/16 = 1

Multiply through by 576 to get:

16x² + 36(y + 4)² = 576

Expand bracket to get:

16x² + 36y² + 288y + 576 = 576

Subtract 576 from both sides to get:

16x² + 288y + 36y² = 0

The general form of x²/6² + (y + 4)²/4² = 1  is 16x² + 288y + 36y² = 0

4)  (x - 3)²/3² + y²/5² = 1

(x - 3)²/9 + y²/25 = 1

Multiply through by 225 to get:

25(x - 3)² + 9y² = 225

Expand the bracket power to get:

25x² - 150x + 225 + 9y² = 225

Subtract 225 from both sides

25x² - 150x + 9y² = 0

The general form of (x - 3)²/3² + y²/5² = 1  is 25x² - 150x + 9y² = 0

Read more about Equation of Ellipse at: https://brainly.com/question/16904744

#SPJ1

Match the equations of ellipses to their equivalent equations in standard form.

25x² - 150x + 9y² = 0

16x² + 288y + 36y² = 0

49x² + 686 + 36y² = 0

4x² - 36y + 9y² = 0

36x² + 504x + 49y² = 0

9x² - 54x + 25y² = 0

x²/3² + (y - 2)²/2² = 1  ⇒

(x + 7)²/7² + y²/6² = 1 ⇒

x²/6² + (y + 4)²/4² = 1 ⇒

(x - 3)²/3² + y²/5² = 1 ⇒  

The equation of the line that passes through the points (1, 0) and (3, 6) is y = 3x - 3.

To find the equation of a line passing through two points, we can use the slope-intercept form of a linear equation: y = mx + b, where m is the slope of the line and b is the y-intercept.

Given points:

Point 1: (1, 0)

Point 2: (3, 6)

Step 1: Calculate the slope (m) using the formula:

m = (y2 - y1) / (x2 - x1)

Substituting the coordinates:

m = (6 - 0) / (3 - 1)

m = 6 / 2

m = 3

Step 2: Substitute one of the given points and the slope into the equation y = mx + b to find the y-intercept (b).

Using Point 1 (1, 0):

0 = 3(1) + b

0 = 3 + b

b = -3

Step 3: Write the equation of the line using the slope (m) and the y-intercept (b):

y = 3x - 3

Therefore, the equation of the line that passes through the points (1, 0) and (3, 6) is y = 3x - 3.

This equation represents a line with a slope of 3, indicating that for every increase of 1 unit in the x-coordinate, the y-coordinate increases by 3 units. The y-intercept of -3 means that the line crosses the y-axis at the point (0, -3). By substituting any x-value into the equation, we can determine the corresponding y-value on the line.

Hence, the equation of the line passing through (1, 0) and (3, 6) is y = 3x - 3.

For more such questions on equation of a line, click on:

https://brainly.com/question/18831322

#SPJ8

The statement that is true about quadrilateral QRST is: d. Side TQ has a length of sq rt of 17 units

A quadrilateral is a polygon with four sides and four vertices. The term "quadrilateral" is derived from the Latin words "quadri" meaning "four" and "latus" meaning "side."

Quadrilaterals come in various shapes and sizes, and they can have different angles and side lengths. Some common examples of quadrilaterals include rectangles, squares, parallelograms, trapezoids, and rhombuses.

Learn more about quadrilateral on https://brainly.com/question/23935806

#SPJ1

The complete question is:

Which statement is true about quadrilateral QRST?

a. Side QR has a length of 5 units.

b. Side RS has a length of sq rt of 40 units.

c. Side ST has a length of 6 units.

d. Side TQ has a length of sq rt of 17 units

The calculated value of x in the figure is 12

From the question, we have the following parameters that can be used in our computation:

The figure

The scale is given as

A : B = 8 : 9

So, we have

48 : 2x + 30 = 8 : 9

Next, we have

(2x + 30)/48 = 9/8

This gives

2x + 30 = 48 * 9/8

2x + 30 = 54

This gives

2x = 24

So, we have

x = 12

Hence, the value of x in the figure is 12

Read more about similar shapes at

https://brainly.com/question/32122930

#SPJ1

The members of the given set in this problem are given as follows:

X U (Y ∩ Z) = {p, q, r, 0, 6, 21, 22, 23, 26}

The union and intersection sets of multiple sets are defined as follows:

The intersection of the sets Y and Z for this problem is given as follows:

Y ∩ Z = {0, 6, 23, 26}

(which are the elements that belong to both of the sets).

The union of the above set with the set X is given as follows:

X U (Y ∩ Z) = {p, q, r, 0, 6, 21, 22, 23, 26}

(elements that belong to at least one of the sets).

More can be learned about union and intersection at brainly.com/question/4699996

#SPJ1

Answer:

(x+3)^2 + (y+1)^2 = 16

Step-by-step explanation:

The equation of a circle is (x – h)^2 + (y – k)^2 = r^2, where h is the x value of the center, k is the y value of the center, and r is the radius.

We can see from the picture that the radius is at about (-3, -1) and the radius is about 4, so we can plug those in:
(x – (-3))^2 + (y – (-1))^2 = 4^2

Simplify:
(x+3)^2 + (y+1)^2 = 16

Answer:

Equation of circle:[tex](x + 3)^2 + (y + 1)^2 = 16[/tex]

Step-by-step explanation:

Given:

Center of the circle = (-3, -1)

Point on the circle = (1, -1)

In order to find the radius of the circle, we can use the distance formula.

distance =[tex] \boxed{\bold{\sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}}[/tex]

where:

In this case, the distance formula becomes:

radius = [tex]\sqrt{(-3 - 1)^2 + ((-1) - (-1))^2}= \sqrt{16}=4[/tex]

Therefore, the radius of the circle is 4 units.

Now that we know the radius of the circle, we can find the equation of the circle using the following formula:

[tex]\boxed{\bold{(x - h)^2 + (y - k)^2 = r^2}}[/tex]

where:

In this case, the equation of the circle becomes:

=[tex](x + 3)^2 + (y + 1)^2 = 4^2[/tex]

=[tex](x + 3)^2 + (y + 1)^2 = 16[/tex]

This is the equation of the circle.

The equation of the line that passes through the point (-3, 7) and has a slope of -5/3 is y - 7 = (-5/3)(x + 3).

We are given the point (-3, 7) and the slope of the line as -5/3.The slope-intercept form of a line is y = mx + b where m is the slope and b is the y-intercept.

To obtain the equation of the line, we need to substitute the values of slope and point in the slope-intercept form and solve for b.(7) = (-5/3)(-3) + b 21/3 = b.

Now we have the value of b, and we can substitute the values of m and b in the slope-intercept form.y = (-5/3)x + 21/3 is the equation of the line in slope-intercept form.

To obtain the equation in the standard form Ax + By = C, we multiply each term by 3.3y = -5x + 7Add 5x to both sides5x + 3y = 7.

This is the equation of the line in standard form.

For more question on equation

https://brainly.com/question/17145398

#SPJ8

Answer:

a)  ∩

Step-by-step explanation:

set A : {6,8,10,12}

set B : {5,6,7,8,9}

set C : {6,8}

A ∪ B = {6,8,10,12} ∪ {5,6,7,8,9} = {5,6,7,8,9,10,12} ≠ C

A ∩ B = {6,8,10,12} ∩ {5,6,7,8,9} = {6, 8} = C

Therfore{6,8,10,12} ∩ {5,6,7,8,9} = {6, 8}

Step-by-step explanation:

The circumference of a circle can be found using the formula:

C = πd

where C represents the circumference and d represents the diameter of the circle.

Given that the diameter of the circle is 4 feet, we can substitute this value into the formula:

C = π * 4

Therefore, the circumference of the circle is 4π feet.