Given a regular pentagon with radius 5, and each side of length 6, find the area of the pentagon. A) 120 square units B) 60 square units C) 45 square units D) 30 square units

Answer:

perimwter = 2(4x-6 + 2x+4) = 2 (6x-2) = 12x-4

Answer:

1. 0.5454

2. 8

3. 0.6785

4. 1.1428

5. 6

6. 1.5

7. 1.75

8. 1.6666

Step-by-step explanation:

calculator :)

Answer:

System 1 has an infinite number of solutions and System 11 has no solution.

Step-by-step explanation:

System 1:

x = y - 3

x - y = -3

2x - 2y = -6

Divide above by 2:

x - y = -3

So the 2 equations are identical

and they have an infinite number of solutions.

System 11:

5x + 2y = -7

15x + 6y = 21

Divide the above by 3:

5x + 2y = 7

Comparing this to the first equation the left sides are the same but right sides are different ( -7 and  7)/

There is no solution to this system.

Answer:

i think that y= -2

The SUMIF function in excel combines a condition and a sum of the values which meet the stated condition.  The SUMIF statement required on Cell A17 would be =SUMIF(C1:C50, '>=40')

How to write functions in Excel?

In Microsoft Excel, formulas are usually used to generate results or values for a cell.

Now, there are different ways that a formula can be written but then the formula must start with an equal sign. The formula to be used for the cells given has the function "SUMIF" and this is used to provide a sum of numeric values based on a condition.

The SUMIF syntax goes thus ; SUMIF(row_range, condition)

Assume the total membership count is in cells A1 to A50.

Cells, where the values are greater than or equal to 40, should be summed.

Hence, the required formula would be =SUMIF(C1:C50, '>=40')

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let's take a peek at the picture above, hmmm let's notice the vertex is at (-1 , 2), now let's get a point besides the vertex hmmm let's see it passes through (-2 , -1).

So we can reword that as what's the equation of a quadratic whose vertex is at (-1 , 2) and it passes through (-2 , -1)?

\(~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{a~is~negative}{op ens~\cap}\qquad \stackrel{a~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill\)

\(\begin{cases} h=-1\\ k=2\\ \end{cases}\implies y=a(~~x-(-1)~~)^2 + 2\hspace{4em}\textit{we also know that} \begin{cases} x=-2\\ y=-1 \end{cases} \\\\\\ -1=a( ~~-2-(-1) ~~ )^2 + 2\implies -3=a(-2+1)^2\implies -3=a \\\\\\ ~\hfill~ {\Large \begin{array}{llll} y=-3(x+1)^2 + 2 \end{array}} ~\hfill~\)

Answer:

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

Step-by-step explanation:

y = a(x - h)^2 + k is the vertex form of a quadratic, where

Finding (h, k):

We see from the graph that the vertex is a maximum and its coordinates are (-1, 2).  Thus h is -1 and k is 2.  Since h becomes negative, it will be 1 in the parentheses: (x - (-1) = (x + 1).

Finding a:

In order to find a, we will need to plug in a point on the parabola for (x, y) and (-1, 2) for h and k.  We see that (0, -1) lies on the parabola so we can use this point for (x, y).

-1 = a(0 - (-1))^2 + 2

-1 = a(0 + 1)^2 + 2

-3 = a(1)^2

-3 = a

Thus, a = -3.

Thus, the exact equation in vertex form of the parabola is:

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

I attached a picture from Desmos Graphing Calculator that shows how the equation I provided works and contains the two points you marked on the parabola, including (-1, 2) aka the maximum, and (0, -1) aka the y-intercept.

The coordinates of point J of parallelogram GBJF are (2, 0), and the correct answer is (A) (2, 0).

What is parallelogram?

A parallelogram is a quadrilateral (a 4-sided polygon) with opposite sides parallel to each other.

We know that the diagonals of a parallelogram bisect each other. Since GBJF is a parallelogram, the diagonals must bisect each other.

Let O be the mid point for diagonals GJ and BF

Using the midpoint formula and the information that O is the midpoint of diagonals GJ and BF, we can find the coordinates of point J.

The midpoint formula states that the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) is given by:

((x1 + x2)/2, (y1 + y2)/2)

Using this formula, we can find the midpoint of GJ and BF:

Midpoint of GJ = ((-4 + xJ)/2, (1 + yJ)/2)

Midpoint of BF = ((-2 + xJ)/2, (3 + 0)/2)

Since O is the midpoint of these two points, we can set the two formulas equal to each other and solve for xJ and yJ:

((-4 + xJ)/2, (1 + yJ)/2) = ((-2 + xJ)/2, 3/2)

Simplifying, we get:

-4 + xJ = -2 + xJ

1 + yJ = 3

Solving for xJ and yJ, we get:

xJ = 2

yJ = 0

Therefore, the coordinates of point J are (2, 0), and the correct answer is (A) (2, 0).

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Volume of a cylinder is given as;

Where height h is 13ft, while the diameter d is 10ft

But radius = diameter/2

radius = 10ft/2

radius = 5ft

Then;

The needed number of days at 10 degrees is given as follows:

11 days.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

For this problem, we have that when x decreases by 5, y increases by 2, hence the slope m is given as follows:

m = -2/5

m = -0.4.

Hence the time needed for a temperature of 10 degrees is given as follows:

9 + 2 = 11 days.

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Let's assume x gallons of milk containing 8% butterfat and y gallons of milk containing 2% butterfat are used.

The total amount of milk is x + y gallons, and we want it to be equal to 258 gallons.

To determine the amount of butterfat in the mixture, we can multiply the volume of each type of milk by its respective butterfat percentage and sum them up.

For milk containing 8% butterfat, the amount of butterfat is 0.08x (8% is equivalent to 0.08 as a decimal).

For milk containing 2% butterfat, the amount of butterfat is 0.02y (2% is equivalent to 0.02 as a decimal).

Since we want the final mixture to contain 7% butterfat, we can set up the following equation:

0.08x + 0.02y = 0.07(258)

Simplifying the equation, we have:

0.08x + 0.02y = 18.06

To solve for x and y, we need another equation. Since the total amount of milk is x + y = 258, we can rearrange it to y = 258 - x.

Substituting this value into the equation above, we get:

0.08x + 0.02(258 - x) = 18.06

Solving this equation will give us the values of x and y, which represent the gallons of milk containing 8% butterfat and 2% butterfat, respectively, needed to obtain the desired 258 gallons.

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Answer:

Step-by-step explanation:

a) To determine the endogenous variables, we need to identify the variables that are determined within the model equation. In the given model, the endogenous variable is Y (output or national income).

b) Let's find Y, C, and T step-by-step:

Start with the equation Y = C + I0 + g0.

Substitute C from the equation C = a + b(y - T).

Y = (a + b(y - T)) + I0 + g0.

Substitute T from the equation T = d + tY.

Y = (a + b(y - (d + tY))) + I0 + g0.

Expand the equation:

Y = a + by - bd - btY + I0 + g0.

Rearrange the equation to isolate Y:

Y + btY = a + by - bd + I0 + g0.

Y(1 + bt) = a + by - bd + I0 + g0.

Y = (a + by - bd + I0 + g0) / (1 + bt).

Now, Y is expressed in terms of the exogenous variables a, b, d, I0, g0, and the endogenous variable Y itself, along with the parameter t.

To find C and T, we can substitute the obtained Y value back into the respective equations:

Substitute Y into the equation C = a + b(y - T):

C = a + b(y - T) = a + b(y - (d + tY)) = a + by - bd - btY.

C = a + by - bd - bt[(a + by - bd + I0 + g0) / (1 + bt)].

Now, C is expressed in terms of the exogenous variables a, b, d, I0, g0, and the endogenous variable Y, along with the parameter t.

Substitute Y into the equation T = d + tY:

T = d + tY = d + t[(a + by - bd + I0 + g0) / (1 + bt)].

Now, T is expressed in terms of the exogenous variables d, t, and the endogenous variable Y, along with the parameters a, b, I0, and g0.

It's important to note that in the given model, there is only one endogenous variable, Y (national income/output). C and T are determined based on the values of Y and the exogenous variables.

ANSWER :

48

EXPLANATION :

The length of the major axis (2a) is 50 and the length of the minor axis (2b) is 14

So :

The distance between the foci is 2c, and the formula of c is :

Using the formula above :

Then the distance of the foci is 2c = 2(24) = 48

The number of customers that bought chocolates chips last month is 240.

He discovered that 3 out of 5 people who came into his bakery for cookies bought chocolate chip cookies.

400 customers bought cookies at Bo's Bakery last month.

The number of people that bought chocolate chip cookies are as follows:

Therefore, using the fraction 3 / 5

3 out of 5 can be represented in fraction form as  3 / 5

number that bought chocolate chip = 3 / 5 × 400

number that bought chocolate chip = 1200 / 5

number that bought chocolate chip = 240

Therefore, the number of customers that bought chocolates chips last month is 240.

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The equation does not hold true, the ordered pair (3, 10) is not a solution of the equation y = 2x + 6.In this way, we can determine whether an ordered pair is a solution of the given equation or not.

Given the equation y = 2x + 6To determine if an ordered pair is a solution of this equation or not, substitute the values of x and y in the equation. If the equation holds true, then the ordered pair is a solution.

If it is not true, then the ordered pair is not a solution.For example, let's consider the ordered pair (1, 8).

Here, x = 1 and y = 8.Substituting these values in the given equation,

we get: y = 2x + 6 => 8 = 2(1) + 6 => 8 = 8 Since the equation holds true,

the ordered pair (1, 8) is a solution of the equation y = 2x + 6.

Now, let's consider another ordered pair, say (3, 10). Here, x = 3 and y = 10.Substituting these values in the given equation, we get: y = 2x + 6 => 10 = 2(3) + 6 => 10 = 12

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Answer:

A) 30

B) 2h 23m

C) 13-17

D) 70 MPH

Step-by-step explanation:
D) It is a safe speed for people to go

Answer:

is 2 because 4 plus 3 equals 7 and c equals 3

The mathematical expression of the give algebraic expression is,

⇒ (c - 7) / 4

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The algebraic expression is,

'' The quotient of 7 subtracted from a number, c, and 4''.

Now,

Here, The algebraic expression is,

'' The quotient of 7 subtracted from a number, c, and 4''.

So, We can formulate;

''7 subtracted from a number c'' means that;

= c - 7

So, 'The quotient of 7 subtracted from a number, c, and 4' is written as;

⇒ (c - 7) / 4

Thus, The mathematical expression of the give algebraic expression is,

⇒ (c - 7) / 4

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38 inches.

(3 x 12) + 2 = 38 inches.

Answer:

its the same as 48

Step-by-step explanation:

Answer:

both sides are the same so it has to be also 48

Answer:

Step-by-step explanation:

At least 9 means more than 9 and includes 9

x ≥ 9     and    [9,  +∞)

At most 9 means numbers less than 9

x≤9       and  (-∞, 9]

more than 9 means bigger than 9 but not including 9

x > 9     and    (9,  +∞)

fewer than 9 means less than 9 but not including 9

x<9       and  (-∞, 9)

strictly between 7 and 9   means between 7 and 9 but not including

7<x<9      and    (7,9)       (This is the only one I'm unsure of.  Strictly, not sure if it includes or doesn't include, usually it just says include or doesn't include)

between 7 and 7 inclusive.   means it's just =7  There's no boundaries

x=7

no more than 7 means less than 7 and includes 7

x ≤ 7   and   (-∞, 7]

Answer:

isreal,Saudi Arabia, egypt,Iraq

Carey's graph will be a straight line with a slope of -1 and a y-intercept of 3.

Carey correctly graphs a linear function with a slope of -1 and a y-intercept of 3. A linear function is represented by the equation y = mx + b, where m is the slope and b is the y-intercept.

In this case, the slope is -1, which means that for every unit increase in the x-coordinate, the y-coordinate decreases by 1 unit. The y-intercept is 3, indicating that the graph intersects the y-axis at the point (0, 3).

To plot the graph, Carey starts by marking the point (0, 3) on the graph. Then, for every unit increase in the x-coordinate, Carey moves one unit downward. Similarly, for every unit decrease in the x-coordinate, Carey moves one unit upward. These steps ensure the correct slope of -1.

After connecting the points, Carey will obtain a line that starts at the y-intercept (0, 3) and slants downward, with a slope of -1. The resulting graph will be a straight line extending to both sides of the coordinate plane.

In conclusion, it is represented by the equation y = -x + 3.

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Answer:

the anwser is 7 buddy hope it helps

Answer:

See below

Step-by-step explanation:

1.

-6(a + 8)

Distribute the -6.

-6a - 48

2.

4(1 + 9x)

Distribute the 4.

4 + 36x or 36x + 4

3.

6(-5n + 7)

Distribute the 6.

-30n + 42

4.

(9m + 10) * 2

Rewrite.

2(9m + 10)

Distribute the 2.

18m + 20

5.

(-4 - 3n) * -8

Rewrite.

-8(-4 - 3n)

Distribute the -8.

32 + 24n or 24n + 32

6.

8(-b - 4)

Distribute the 8.

-8b - 32

7.

(1 - 7n) * 5

Rewrite.

5(1 - 7n)

Distribute the 5.

5 - 35n or -35n + 5

8.

-6(x + 4)

Distribute the -6.

-6x - 24

9.

5(3m - 6)

Distribute the 5.

15m - 30

10.

(-6p + 7) * -4

Rewrite.

-4(-6p + 7)

Distribute the -4.

24p - 28

11.

5(b - 1)

Distribute the 5.

5b - 5

12.

(x + 9) * 5

Rewrite.

5(x + 9)

Distribute the 5.

5x + 45

On solving the provided question, we can say that from the graph we have a equation \(y = x^2 - 3x - 4\) => y= x(x+1) - 4(x+1) => y = (x+1)(x-4)

Mathematicians use here  graphs to logically convey facts or values using visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices. This graph has vertices V=1, 2, 3, 5, and edges E=1, 2, 1, 3, 2, 4, and (2.5), (3.5). (4.5). Statistical charts (bar charts, pie charts, line charts, etc.) graphical representations of exponential growth. a logarithmic graph in the shape of a triangle

from the graph we have a equation

\(y = x^2 - 3x - 4\)

y= x(x+1) - 4(x+1)

y = (x+1)(x-4)

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Answer: D. an=-3*(1/8)^n-1

Step-by-step explanation:

The explicit formula for the geometric sequence with this recursive

formula will be; \(a_n=-3(1/8)^{n-1}\)Therefore, the option D is the correct.

Suppose the initial term of a geometric sequence is a

and the term by which we multiply the previous term to get the next term is r

Then the sequence would look like

a, ar, ar^2, ar^3, \cdots

 (till the terms to which it is defined)

Thus, the nth term of such sequence would be  T_n = ar^{n-1} (you can easily predict this formula, as for nth term, the multiple r would've multiplied with initial terms n-1 times).

The sum of terms of a geometric sequence;

Lets suppose its initial term is  a, multiplication factor is  r

and let it has total n terms, then, its sum is given as:

\(S_n = \dfrac{a(r^n-1)}{r-1}\)

(sum till nth term)

We have been given;

\(a_1 = -3\\a_n= a_{n-1} (1/8)\)

So, the explicit formula for the geometric sequence with this recursive

formula will be;

\(a_n=-3(1/8)^{n-1}\)

Therefore, the option D is the correct.

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Answer:

Step-by-step explanation:

[-5/13] 3/5 +12+13 [-4/5 = - 63/65

Answer:

8500

Step-by-step explanation:

When compounded continuously the future value,  FV , of your initial investment,  PV , is determined with the the equation

\(FW = PV\) ×\(e^{rxt}\)

where  r  is the norminal interest rate, expressed as a decimal, and  t  is the investment period in years.

Plugin the values in this equation gives

\(FW = $7,500\) × \(e^{0.015x8} =$8,456.23\)

Round to nearest hundred dollars = 8500

Answer:

−f(5.1) =  16.14

Step-by-step explanation:

Hope this helps!  Stay safe!