Which equation is satisfied by c = 7?

As a result, the cylinder's surface area at a height of 2 feet and a radius of 3 feet is roughly 37.699 square feet.

The entire area occupied by the cylinder's flat, round bases and its curved surface is referred to as the surface area of a cylinder. Since the cylinder's base is a circle, it may be stated that it is the sum of the area of a circle and the area of the curved surface, which is a rectangle.

A = 2rπh, where r is the cylinder's radius and h is its height, is the formula for a cylinder's lateral surface area1.

Use the formula to determine the surface area of a cylinder with a height of 2 feet and a radius of 3 feet.

The formula for the lateral surface area of a cylinder, A = 2rh, can be used to determine the surface area of a cylinder with a height of two feet and a radius of three feet.

Al = 2(3)π(2) = π12 square feet is the result of replacing r = 3 feet and h = 2 feet in the previous formula.(π=3.14)

To the nearest thousandth, we may round this number to get 37.699 square feet.

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Using the fact that the triangles are similar, we can see that x = 2

The triangles are similar because lines WR and RT have the same slopes compared to SR and RV.

Now, we know that there is a scale factor between them, so if that scale factor is k, we can write:

8*k = 10

k = 10/8

k = 1.25

Then:

(x + 6)*1.25 = 2x + 6

Now we can solve this for x.

1.25x + 7.5 = 2x + 6

7.5 - 6 = 2x - 1.25x

1.5  = 0.75x

1.5/0.75 = x =2

That is the value of x.

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I'd say it's number 2, well I'm pretty sure it's number two about the b value. Let me know if I'm right

Answer:

D. The student didn't put parentheses around the -2 when finding the discriminant.

Answer: 1: C, 2: D, 3: B , 4: A.

I believe this is what your asking.

Step-by-step explanation: Please give brainiest.

Hope this helps!!!!

I will answer more questions for Brainleist and points.

Answer:

3(4 + x)

3 * 4 + 3 * x, OR 3(4) + 3(x)

12 + 3x

Brainliest? ;)

The solution is, the coordinates of midpoint of AB are (-3/2, -1)

We will use the formula of midpoint ;

(Xm , Ym) = (x₁ + x₂ /2 , y₁ + y₂ /2)

This implies that;

Xm = x₁ + x₂ /2

From the question, x₁ = -4 y₁= 2 and,  x₂ =1, y₂ = -4

substituting the values into;

Xm = x₁ + x₂ /2 and then solve for x_m

x_m = -4 + 1 / 2

x_m = -3/2

Similarly, substituting the values into;

Ym = y₁ + y₂ /2 and then solve for y_m

so. we get,

y_m = 2+ (-4) / 2

or, y_m = -1

Hence the coordinates of midpoint of AB are (-3/2, -1)

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Answer:

There are 48 different combinations possible with 8 shirts, 2 pairs of jeans, and 3 pairs of shoes.

Step-by-step explanation:

To find the number of different combinations possible with 8 shirts, 2 pairs of jeans, and 3 pairs of shoes, we need to multiply the number of options for each category.

For shirts, there are 8 options.

For jeans, there are 2 options (either wear a pair or not wear a pair).

For shoes, there are 3 options.

To find the total number of combinations, we multiply these options:

8 * 2 * 3 = 48

Therefore, there are 48 different combinations possible with 8 shirts, 2 pairs of jeans, and 3 pairs of shoes.

Answer: 48

Step-by-step explanation:

Total outcomes, you multiply all possibilities.

8 shirts

2 jeans

3 shoes

8*2*3 =48

Answer:

PV = PMT x [(1 - (1 + r/n)^(-nt)) / (r/n)]

Where:

PV is the present value of the loan (maximum price of the boat that Ryan can afford)

PMT is the monthly payment that Ryan can afford ($300)

r is the annual interest rate (11%)

n is the number of times interest is compounded per year (12, for monthly payments)

t is the number of years for the loan (8)

Plugging in the numbers, we get:

PV = $300 x [(1 - (1 + 0.11/12)^(-12*8)) / (0.11/12)]

PV = $24,598.82

Therefore, the maximum price for a boat that Ryan's budget can afford is $24,598.82, rounded to the nearest hundred dollars, is $24,600.

Step-by-step explanation:

use brain

Answer:

Step-by-step explanation:

a. f(-a) = 3 - 2(-a) = 3 + 2a

b. -f(a) = -(3 - 2a) = -3 + 2a

c. f(a + h) = 3 - 2(a + h) = 3 - 2a - 2h

d. f(a) + f(h) = (3 - 2a) + (3 - 2h) = 6 - 2a - 2h

e. (f(a + h) - f(a))/h = [3 - 2(a + h) - (3 - 2a)]/h = [-2h]/h = -2, if h ≠ 0.

Answer:

a. To find f(-a), substitute -a for x in the given function:

f(-a) = 3 - 2(-a) = 3 + 2a

Therefore, f(-a) = 3 + 2a.

b. To find -f(a), evaluate f(a) and then multiply by -1:

f(a) = 3 - 2a

-f(a) = -(3 - 2a) = -3 + 2a

Therefore, -f(a) = -3 + 2a.

c. To find f(a + h), substitute a + h for x in the given function:

f(a + h) = 3 - 2(a + h) = 3 - 2a - 2h

Therefore, f(a + h) = 3 - 2a - 2h.

d. To find f(a) + f(h), evaluate f(a) and f(h), and then add them:

f(a) = 3 - 2a

f(h) = 3 - 2h

f(a) + f(h) = (3 - 2a) + (3 - 2h) = 6 - 2a - 2h

Therefore, f(a) + f(h) = 6 - 2a - 2h.

e. To find (f(a + h) - f(a))/h if h ≠ 0, substitute the expressions for f(a + h) and f(a) into the formula:

(f(a + h) - f(a))/h = ((3 - 2a - 2h) - (3 - 2a))/h = (-2h)/h = -2

Therefore, (f(a + h) - f(a))/h = -2 if h ≠ 0.

The solution of "system-of-equations" shown in the graph is (d) There is one unique solution (-3, 1).

In the graph shown, we see that the two lines representing the two equations, intersect at a single point,

So, we can say that the given system-of-equations has a "unique-solution",

On carefully observing the point of intersection, we see that, the "x-coordinate" of intersecting point is "-3", and the "y-coordinate" of the intersecting point is "1",

So, the unique solution of the "system-of-equations" occur at the point (-3,1).

Therefore, the correct option is (d).

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Answer:

Let's assume that the number of children who used the public swimming pool is 'x' and the number of adults who used the pool is 'y'.

From the given information, we can form two equations:

x + y = 454 (equation 1) --> the total number of people who used the pool

1.5x + 2.5y = 1043 (equation 2) --> the total revenue collected from admission fees

We can use these equations to solve for 'x' and 'y'. Let's start by multiplying equation 1 by 1.5 to eliminate 'x':

1.5x + 1.5y = 681 (equation 1 multiplied by 1.5)

1.5x + 2.5y = 1043 (equation 2)

Now, we can subtract equation 1 from equation 2 to eliminate 'x' and solve for 'y':

2.5y - 1.5y = 1043 - 681

y = 224

So, there were 224 adults who used the pool. We can substitute this value into equation 1 to solve for 'x':

x + 224 = 454

x = 230

Therefore, there were 230 children who used the pool.

Answer:

the answer is 1296

Step-by-step explanation:

It is because 2² is 4 and x² is 9 and x is 3 and when 2 number are put together in algebra = multiplication so it is equals to 36 and for the bottom xy² , x is 3 and y is 2 and so 3 time 2 is 6 and double it is 36and so u double it again because outside the brackets the is still ² so the answer is 36 times 36 which is 1296

The expression (2x²) evaluates to 18 when the value of 'x' is 3.

In this mathematical problem, you are asked to evaluate the expression (2x²) for x = 3 and y = 2. Although the question gives a value for 'y', it is not needed in this evaluation since our expression contains only 'x'. Therefore, let's substitute the value x = 3 into the equation.

The expression now reads, 2*(3²). The square of 3 is 9, and if we multiply this by 2, the final answer of the expression is 18.

So the evaluation of the expression (2x²) for x = 3 is 18.

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In a case whereby Danielle sells beauty supplies and earns a base salary of $450 per week plus a 9% commission on sales and During one particular week, she sells $895 worth of beauty supplies  the commission that she make for that week is  $530,55

The base salary from the question is $450. The commision = 9%

Then the Commission that can be gotten from the week= ($895 x 0,09= $80,55)

Total salary= ($450 +80,55)

Total salary= $530,55

Therefore, the commission that she make for that week is  $530,55

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The parabola has vertex of (-6, 11) and a p - value of 4.5.

We can calculate the midpoint between the focus and the directrix point that is directly above or below the focus in order to locate the vertex. This point is at (-6, 11), which is the same as the focus' x-coordinate and the directrix's y-coordinate.

We can use either the distance between the vertex and the directrix or the focus to determine the p-value:

p = ( k - ( - 7  )) / 2

= (2 - (-7) ) / 2

= 9/2

= 4. 5

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The area of the shape is 120 if the perimeter of the given shape is 44 feet.

The shape is given below.

It is in the shape of a rectangle.

Length = 6x and width = 4x + 2

Perimeter of a rectangle = 2 × (Length + Width)

So,

2 (6x + 4x + 2) = 44

2 (10x + 2) = 44

10x + 2 = 22

10x = 20

x = 2

So, length = 6x = 12

Width = 4x + 2 = 10

Area of the rectangle = Length × Width

                                    = 12 × 10

                                    = 120

Hence the area of the shape is 120.

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Upon answering the query  Alexis will thus need about 26.7 minutes to equation catch up to David.

An equation in math is an expression that connects two claims and uses the equals symbol (=) to denote equivalence. An equation in algebra is a mathematical statement that establishes the equivalence of two mathematical expressions. For instance, in the equation 3x + 5 = 14, the equal sign places a space between each of the variables 3x + 5 and 14. The relationship between the two sentences that are written on each side of a letter may be understood using a mathematical formula. The sign and only one variable are frequently the same. as in, 2x - 4 equals 2, for instance.

The formula is as follows:

Time = Speed / Distance

First, let's determine the distance David covered in 30 minutes:

Distance is determined by multiplying time and speed.

Distance = 72 km/h times 0.5 hours.

a 36 km distance

Let's now construct an equation to determine how much time Alexis will need to cover David's identical distance:

Distance is determined by multiplying time and speed.

36 km = time x 81 km/h

Calculating time:

Time = Speed / Distance

time equals 36 kilometres at 81 km/h

the number of hours is 0.4444

We can multiply by 60 to get the time in minutes:

time is 0.4444... hours x 60 minutes/hour

minutes = 26.666 seconds

Alexis will thus need about 26.7 minutes to catch up to David.

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Answer:

$2102.48.

Step-by-step explanation:

FV=PV⋅(1+r)n

where:

FV is the future value

PV is the present value

r is the interest rate per period

n is the number of periods

In your case, the present value is 2000, the interest rate per year is 0.03, and the number of years is 18/12 = 1.5. However, since the formula uses the interest rate per period and the number of periods, you need to convert them to match the frequency of compounding. For example, if the interest is compounded monthly, then you need to divide the annual interest rate by 12 and multiply the number of years by 12. Let’s assume that the interest is compounded monthly in this case. Then, you can plug in the values into the formula and get:

FV=2000⋅(1+120.03​)1.5⋅12

Using a calculator, you can simplify this expression and get:

FV=2000⋅1.031518

FV=2000⋅1.0512

FV=2102.48

Answer:

17.36

Step-by-step explanation:

The formula to find the circumference of a circle is:

Circumference = π x Diameter

Where π (pi) is a mathematical constant approximately equal to 3.14159.

So, if the diameter of the circle is 5.52, the circumference can be calculated as:

Circumference = π x 5.52

Circumference ≈ 17.36 (rounded to two decimal places)

Therefore, the circumference of a circle with a diameter of 5.52 is approximately 17.36 units.

Answer:

The value of y in the list 1/2,x,y,3/4 is 2/3. This is because the differences between successive numbers in the list are all the same, and the difference between 1/2 and 3/4 is 2/3.

The length of chord LM is determined as 24 inches.

option A.

The length of the chord LM is calculated by applying the following formula as shown below;

Based on intersecting chord theorem, when two chord intersect in a circle, the product of two segment of one chord is equal to the product of two segment of the second chord.

First we need to find the value of x;

3x(x) = 12 (9)

3x² = 108

x² = 108/3

x² = 36

x = √ 36

x = 6

The length of chord LM is calculated as follows;

LM = x + 3x

LM = 6 + 3(6)

LM = 24

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The line of reflection for the graph is Reflection across x = 6.

Given a graph of the polygon ABCDE.

Vertices of the polygon are :

A(-1, -4), B(-1, -1), C(3, -1), D(3, -4) and E(1, -6).

Also given a graph of the polygon A'B'C'D'E'.

A'(13, -4), B'(13, -1), C'(9, -1), D'(9, -4) and E'(11, -6).

Here the y coordinates has not been change. Only the x coordinates change.

So the line of reflection will be of the form x = c.

Mid point of each of the corresponding vertices are,

Mid point of AA' = (6, -4),

Midpoint of BB' = (6, -1)

Midpoint of CC' = (6, -1)

Midpoint of DD' = (6, -4)

Midpoint of EE' = (6, -6)

So all the x coordinates are same, x = 6

Hence the line of reflection is x = 6.

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The correct statement is :- The measure of an arc corresponds to the measure of a central angle and an arc length is a fraction of the​ circle's circumference. [option A]

The measure of an arc is calculated according to how much part of the circle is intercepted by the central angle which is corresponding to that arc.

Whereas,

Length of an arc is the measure of a certain part of the circumference of the circle.

Hence the measure of an arc corresponds to the measure of a central angle and an arc length is a fraction of the​ circle's circumference.

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Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. The true statements are the center of the circle lies on the x-axis and the standard form of the equation is (x - 1)^2 + y^2 = 3. So, the correct answers are B and D.

To determine which statements are true about the circle with equation x^2 + y^2 - 2x - 8 = 0

First, we can rewrite the equation by completing the square

(x^2 - 2x + 1) + y^2 = 9

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

Therefore, the center of the circle is at (1, 0), which lies on the x-axis.

The radius of the circle is sqrt(3), which is not equal to 3, so the statement "The radius of the circle is 3 units" is false.

Since the center of the circle is on the x-axis, the statement "The center of the circle lies on the y-axis" is false.

The standard form of the equation is (x - 1)^2 + y^2 = 3, which is true.

Finally, the radius of the circle whose equation is x^2 + y^2 = 9 is 3 units, which is not the same as the radius of the given circle. Therefore, the statement "The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9" is false.

So, the correct options are B and D.

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Answer:

Step-by-step explanation:

You want the values of m and c for the equation y = mx + c that describes the line on the graph.

The coefficient 'm' in the equation y = mx + c is the slope of the line. It is the ratio of the "rise" to the "run". The "rise" is the vertical distance from one point to another on the line. The "run" is the corresponding horizontal distance between the points.

For finding these values, it is convenient to locate points on the graph that cross grid line intersections. These are circled in the attachment.

The slope (m) of this line is ...

  m = 5/1 = 5

The constant 'c' in the equation y = mx + c is the y-intercept of the line. It is the value of y when x=0. On the graph, it is the y-coordinate of the point where the line crosses the y-axis.

The line on this graph crosses the y-axis at y = -2.

The value of 'c' is -2.

The equation of the line is y = 5x -2.

__

Additional comment

You can find the values of "rise" and "run" from coordinates, or by counting grid squares on the graph. Often, counting the grid lines is easier.

Here, the "rise" is 3 -(-2) = 5, the difference of y-coordinates of the circled points.

The "run" is 1 -0 = 1, the difference of the corresponding x-coordinates of the circled points.

The slope is rise/run = 5/1 = 5.

From the given triangle figure the value of y is 4.5.

The given figure is -

Now we have to find the value of 'y' from the given triangle.

Triangle ABC is right angled triangle with right angle at point A.

So, ∠B + ∠C = 90° ......... (i)

Again, triangle ADB is a right angled triangle with right angle at point D.

So, ∠DAB + ∠B = 90° .......... (ii)

Comparing (i) and (ii) we can say that,

∠DAB = ∠C

Again, triangle ADB is a right angled triangle with hypotenuse AB.

By Pythagoras theorem,

AD² + DB² = AB²

AB² = 3² + 2² = 9 + 4 = 13

AB = √13

Hence triangle ABC and triangle ADB are two similar triangles. So,

AB/DB = CB/AB

√13/2 = (y + 2)/√13

2(y + 2) = √13*√13

2y + 4 = 13

2y = 13 - 4 = 9

y = 9/2 = 4.5

So the value of y is 4.5.

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The question in another language, The question in English should be -

"In the figure below, find the exact value of y. (without making an approximation of the answer)"

The area of the given figure is 192.5 ft².

Given is a figure we need to find its area,

By splitting the shape in 2, we can find the area.

Starting with the parallelogram (on the left), the area formula is A = b × h.

b (base) = 11 ft.

h (height) = 7 ft.

A (area) = (11 ft.)(7 ft.)

A = 77 ft.²

Then, the trapezoid's (on the right) area formula is A = [(a + b) ÷ 2] × h.

a (first base) = 8 ft.

b (second base) = (20 - 7) = 13 ft.

h (height) = 11 ft.

A = [(8 ft. + 13 ft.) ÷ 2] × 11 ft.

A = [(21 ft.) ÷ 2] × 11 ft.

A = (10.5 ft.) × 11 ft.

A = 115.5 ft.²

we can add them together to find the total area:

A = 77 ft.² + 115.5 ft.²

A = 192.5 ft.²

Hence, the area of the given figure is 192.5 ft².

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2 equals 9, 3 equals 27, and n represents the number of years after the first year

Based on the given information, the company has the following:

At the start of year 1, the company has 3 employees.

At the start of year 2, the company plans to triple the number of employees, so it will have 3 x 3 = 9 employees.

At the start of year 3, the company plans to triple the number of employees again, so it will have 9 x 3 = 27 employees.

Therefore, 2 equals 9, 3 equals 27, and n represents the number of years after the first year.

So, the general formula for the number of employees in year n is:

number of employees in year n = 3 x 3^(n-1)

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If Santiago has been approved for a mortgage up to $195,000 and the conventional loan requires a 20% down payment, then his down payment will be:

Down payment = 20% * $195,000

Down payment = $39,000

Therefore, if Santiago buys a house for the maximum amount he has been approved for, he will need to make a down payment of $39,000.

To calculate how much house Santiago can afford, we need to subtract the down payment from the total amount he has been approved for:

Maximum home price = Total mortgage amount - Down payment

Maximum home price = $195,000 - $39,000

Maximum home price = $156,000

Therefore, Santiago can afford a home up to a maximum price of $156,000.

To summarize:

Santiago's down payment will be $39,000.

Santiago can spend up to $156,000 on a house.

I'm sorry to disturb but can you please mark me BRAINLEIST if this ans is helpfull