Can someone help me with the answer?

Answer:

OK the so the answer is this,

A - Irregular - It is an irregular polygon as the sides and angles are unequal.

B - Neither - As circle is not a polygon.

C - Irregular - Again, it is an irregular for the same reason.

D - Regular - Sides and angles are equal

E - Regular - Equilateral triangle

The number of pounds needed for 6045 square​ feet will be 45.

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

If 3 pounds of grass seed cover 403 square​ feet.

The ratio of the number of pounds of seed to the area that covers the seed.

Let 'x' be the pounds needed of seed. Then the equation is given as,

x / 6045 = 3 / 403

x = 6045 × 3 / 403

x = 15 · 3

x = 45

The number of pounds needed for 6045 square​ feet will be 45.

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Given vertices:

Plot the points (see attached).

AC is the base of the triangle:

Add BD, the height. It will help to find the length of the other two sides and the area:

Find AB and BC using Pythagorean:

Perimeter: 7 + 5.7 + 5 = 15.7 units

Area: 1/2*7*4 = 14 units²

Given vertices:

Plot the points (see attached).

As we see this is a rectangle.

Find two adjacent sides using distance equation:

Perimeter: 2(4.1 + 8.2) = 2(12.3) = 24.6 units

Area: √17 * 2√17 = 2*17 = 34 units²

Answer:

11.  Perimeter:  17.7 units

11.  Area:  14 square units

12.  Perimeter:  24.7 units

12.  Area:  34 square units

Step-by-step explanation:

Given vertices of the polygon:

Plot the given points in the coordinate plane (see attachment 1).

From inspection, we can see that the polygon is a triangle with the following dimensions:

[tex]\boxed{\begin{minipage}{7.4 cm}\underline{Distance between two points}\\\\$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$\\\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ are the two points.\\\end{minipage}}[/tex]

The length of AC is 7 units.

To find the length of AB and BC, use the distance formula.

[tex]\begin{aligned}AB&=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\&=\sqrt{(2-(-2))^2+(5-1)^2}\\&=\sqrt{(4)^2+(4)^2}\\&=\sqrt{16+16}\\&=\sqrt{32}\\&=4\sqrt{2}\;\sf units\end{aligned}[/tex]

[tex]\begin{aligned}BC&=\sqrt{(x_C-x_B)^2+(y_C-y_B)^2}\\&=\sqrt{(5-2)^2+(1-5)^2}\\&=\sqrt{(3)^2+(-4)^2}\\&=\sqrt{9+16}\\&=\sqrt{25}\\&=5\;\sf units\end{aligned}[/tex]

Therefore:

[tex]\begin{aligned}\textsf{Perimeter}&=AB+BC+AC\\&=4\sqrt{2}+5+7\\&=12+4\sqrt{2}\\&=17.6568542...\\&=17.7\;\sf units\end{aligned}[/tex]

[tex]\begin{aligned}\textsf{Area}&=\dfrac{1}{2}\cdot 7\cdot 4\\\\&=\dfrac{7}{2} \cdot 4\\\\&=\dfrac{28}{2}\\\\&=14\;\sf square\;units\end{aligned}[/tex]

Given vertices of the polygon:

Plot the given points in the coordinate plane (see attachment 2).

From inspection, we can see that the polygon is a rectangle.

[tex]\boxed{\begin{minipage}{7.4 cm}\underline{Distance between two points}\\\\$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$\\\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ are the two points.\\\end{minipage}}[/tex]

Since AB = DC and BC = AD, find the length of AB and BC using the distance formula.

[tex]\begin{aligned}AB&=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\&=\sqrt{(1-(-3))^2+(6-5)^2}\\&=\sqrt{(4)^2+(1)^2}\\&=\sqrt{16+1}\\&=\sqrt{17}\;\sf units\end{aligned}[/tex]

[tex]\begin{aligned}BC&=\sqrt{(x_C-x_B)^2+(y_C-y_B)^2}\\&=\sqrt{(3-1)^2+(-2-6)^2}\\&=\sqrt{(2)^2+(-8)^2}\\&=\sqrt{4+64}\\&=\sqrt{68}\\&=2\sqrt{17}\;\sf units\end{aligned}[/tex]

Therefore:

[tex]\begin{aligned}\textsf{Perimeter}&=AB+BC+CD+AD\\&=2(AB+BC)\\&=2(\sqrt{17}+2\sqrt{17})\\&=2(3\sqrt{17})\\&=6\sqrt{17}\\&=24.7386337...\\&=24.7\;\sf units\end{aligned}[/tex]

[tex]\begin{aligned}\textsf{Area}&=AB\cdot BC\\&=\sqrt{17} \cdot 2\sqrt{17}\\&=34\;\sf square\;units\end{aligned}[/tex]

Answer: the answer is $13

Step-by-step explantion

To show work subtract 25 from all the answer so it would be:

Answer: Shayla's method for determining whether a graph of a relation is a function is not completely accurate. While it is true that a function can only have one y-intercept, the converse is not necessarily true. A graph can have exactly one y-intercept and still not be a function.

For example, a vertical line has exactly one y-intercept, but it does not define a function because the same value of x can have multiple y-values.

It is also important to note that a graph can be a function even if it does not intersect the y-axis at all.

A more accurate way to determine whether a graph represents a function is to use the vertical line test. This test states that if a vertical line can be drawn through the graph such that it intersects the graph in more than one point, then the graph does not represent a function. If a vertical line can be drawn through the graph such that it intersects the graph in exactly one point, then the graph represents a function.

Step-by-step explanation:

The number of terms (n) in the sequence = 10.

We know that,

                      S = [tex]\frac{n}{2\\}[/tex] {2a + (n-1)d}

Where,

            S = Sum of A. P. series

            n = number of terms in A. P. series

            a = first term of the series

            d = common difference

According to the question,

           Sum of the series, S = 340

                         First term,  a = 7

         Common difference, d = 6

                  S = [tex]\frac{n}{2\\}[/tex] {2a + (n-1)d}

                  340 =  [tex]\frac{n}{2}[/tex] {2*7 + (n-1)6}

                  340 =  [tex]\frac{n}{2}[/tex] {14 + 6n - 6}

                  340*2 = n( 6n + 8)

                   680   = 6n^2 + 8n

        6n^2 + 8n - 680 = 0

        2 (3n^2 +4n - 340) = 0

            3n^2 +4n - 340 = 0

        3n^2 + 34n - 30n - 340 = 0

        n (3n+ 34) - 10 (3n + 34) = 0

        (3n + 34) (n - 10) = 0

   if we take, 3n + 34 = 0

                         3n = - 34

                           n = -34/3

which is not possible, as the number of terms can not be negative

   if we take, n- 10 = 0

                       n = 10

Hence, the number of terms in the given A. P. series is 10.

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Answer:

-------------------------------------

We know that the area of a rectangle with same dimensions is twice the area of a triangle.

The shaded area is half the area of the rectangle:

You already divided it to rectangle and triangle.

Area of rectangle:

The triangle have same base, 12 units. It height is 16 - 10 = 6 units.

Its area is:

Area of the small rectangle in the middle:

The shaded area is the difference of the total area and the small rectangle:

Answer: We can set up a system of equations to solve this problem. Let x be the number of quarters and y be the number of nickels. We know that:

x + y = 20 (the total number of coins)

0.25x + 0.05y = 4.20 (the total value of the coins in dollars)

We can use the first equation to solve for one variable in terms of the other, and then substitute that into the second equation to get a single equation with one variable.

For example:

x = 20 - y

0.25(20-y) + 0.05y = 4.20

5-0.25y + 0.05y = 4.20

5= 4.20

y = 20 - 5

y = 15

x = 20 - 15

x = 5

So Jada has 5 quarters and 15 nickels in her pocket.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The mass per cup for the objects will be 320g and 272g respectively.

What is mass?

Mass simply means the weight that an object contains.

The mass of a teapot and 4 cups is 1,280 grams. The mass per cup will be:

= Mass / Number of cups

= 1280 / 4

= 320g

The mass of the same teapot and 10 cups is 2,720 grams. The mass per cup will be: = 2720 / 10 = 272g

Hence, the mass per cup for the objects will be 320g and 272g respectively.

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Complete questions:

The mass of a teapot and 4 cups is 1,280 grams. The mass of the same teapot and 10 cups is 2,720 grams. Each cup has the same mass. What is the mass?

The statement 4, 6 and 7 is enough to prove that 45° + m∠AOW = 90°.

A harmonious relationship, agreement, or correspondence are all concepts that are denoted by the mathematical term "congruence," which is used in a variety of contexts.

The two geometric figures are said to be congruent, or to be in the relation of congruence, if they can be superimposed on one another so that their entire surfaces match. If two triangles have the same two sides and included angle, they are said to be congruent.

The idea of a "rigid body," which can be moved from one place to another without changing the internal relationships between its parts, appears to be the foundation for congruence.

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The simplified expression as a product of polynomials is given as follows:

(c - d)(p + 1).

The expression for this problem is defined as follows:

p(c - d) + c - d.

The expression can be defined as an addition in which the terms are given as follows:

The common factor to both of the terms of the addition is given as follows:

(c - d).

The quotients of each term relative to the common factor are given as follows:

Hence the simplified expression is given as follows:

(c - d)(p + 1).

(the plus sign for p + 1 is because the expression is an addition and not a subtraction).

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Answer:

below

Step-by-step explanation:

1/2  = e^(-.0372t)        ln   both sides to get :

-.693147 = - .0372t      then t = 18.6 yrs

Answer:

L = 1/2x

Step-by-step explanation:

The perimeter of a rectangle is the sum of all four sides. In this case, the perimeter is represented by the expression 3 1/2x + 18.

Since the perimeter of a rectangle is the sum of the lengths of all four sides, so, if we know the perimeter and one side's length, we can find the length of the other side.

We can use the expression 3 1/2x + 18 to find the length of the rectangle.

Let's assume that the length of the rectangle is represented by the variable L and the width is represented by the variable W.

So we know that the perimeter of the rectangle is represented by the expression 3 1/2x + 18 and the perimeter of a rectangle is 2(L + W)

So we can write the equation

2(L + W) = 3 1/2x + 18

Expanding the left side of the equation:

2L + 2W = 3 1/2x + 18

Now we know that one of the sides of the rectangle is 1/2x so

L = 1/2x

Therefore, the expression that represents the length of the rectangle is 1/2x

Therefore, the three consecutive odd integers that add up to 93 are 33, 35, and 37.

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1. The completion of the mathematical expression to represent the change in Estella's account balance due to guitar lessons after 2 years is 52 - 35x, where x is the number of years.

2. After two years, the account balance will be $-18, without reflecting interest.

A mathematical expression is a combination of variables, constants, numbers, and mathematical operands (addition, subtraction, division, and multiplication).

A mathematical expression may not convey any meaning since it sounds like a phrase in the English language that does not make complete sense.

The unit rate (cost per lesson) for guitar lessons = $35

Estella's account balance = $52

Let the number of years = x

Lesson period, x = 2 years

Mathematical Expression: 52 - 35x

Solution: 52 = 35(2)

= $-18

Thus, after 2 years of guitar lessons, Estella will be indebted to the bank by $18 if she does not deposit an additional amount in her account.

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Expression: 52 - 35

In November 2018, the frequency tree shows us that 35 students aged 15 years old had part-time work.

That number 35 drops to 23 a year later in 2019. There are two reasons for this:

Case (2) mentioned above only works if the student's birthday is before April 2019.

The savings before he purchased the radio is

A percentage is a figure or ratio that can be stated as a fraction of 100.

If we need to determine the percentage of the given number, we divide the number by its whole number and multiply it by 100. As a result, the percentage is one part in one hundred. "Per 100" is short for "per percent." It is represented by the symbol "%".

Given cost of radio = $109.65

and $109.65 is 43% of his savings,

let saving be  x

according to conditions,

43% of x = 109.65

43x/100 = 109.65

43x = 109.65 × 100

x = 10965/43

x = $255

Hence the saving of George is $255.

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Step-by-step explanation:

"average" or "mean value" are calculated by adding all data points up and dividing that sum by the number of data points.

e.g. if you eat 1 popsicle today, ate 2 popsicles yesterday and 3 the day before, you have 3 data points : 3, 2, 1.

in my example you had

(3 + 2 + 1)/3 = 6/3 = 2 popsicles every day on average.

the same principle here.

you have 2 days points. and your average score is

(88 + 93)/2 = 181/2 = 90.5

Answer:

To find f(2), we substitute 2 for x in the equation of the parabola F(x) = x^2 - 2x - 3:

F(2) = 2^2 - 2(2) - 3 = 4 - 4 - 3 = -3

So f(2) = -3

To find g(-3), we substitute -3 for x in the equation of the line g(x) = x - 2:

g(-3) = -3 - 2 = -5

So g(-3) = -5

The correct solution to this question is as follows:

f(2)= -3   &  g(-3)=-5

Step-by-step explanation:

[tex]f(x)=x^{2} -2x-3[/tex]

[tex]f(2)=2^{2} -2(2)-3[/tex]

[tex]f(2)=4 -4-3[/tex]

[tex]f(2)=-3[/tex]

[tex]g(x)=x-2[/tex]

[tex]g(-3)=-3-2[/tex]

[tex]g(-3)=-5[/tex]

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Answer:

The area is 48 feet^2

Step-by-step explanation:

The area of a triangle can be calculated with the following formula:

area=1/2(base)(height)

Substitute in the numbers and find the answer.

a=(0.5)(6)(16)=48

Therefore , the solution of purchased so that the consumer has an equal amount of each LCM if hot dogs are packaged with 10 dogs per pack .

"Sandwich rolls or hot dog buns are typically sold in packs of eight because the buns are baked in clusters of four in pans designed to hold eight rolls." Because hot dogs are sold by the pound and store-bought standard-sized hot dogs weigh 1.6 ounces,

Here,

purchased so that the consumer has an equal amount of

each if hot dogs are packaged with 10 dogs per pack and hot dog buns are packaged with 8 buns per pack  LCM is 40.

hot dog buns are packaged with 8 buns per pack  LCM is 40. 4 packages of hot dogs and 5 packages of buns are required.

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Answer:

50%

Step-by-step explanation:

25%+25%

The composition functions represents receiving the sale price of the shoes and then applying the coupon is c(s(x))= 0.75x-25.

Given that, c(x) = x - 25 represents the cost of the shoes with your coupon and s(x) = 0.75x is the cost of shoes after the markdown.

Here, the composition function is

c(s(x))= 0.75x-25

Therefore, the composition functions represents receiving the sale price of the shoes and then applying the coupon is c(s(x))= 0.75x-25.

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The amount of discount in dollars is 28.17

To find the amount of the discount, we need to multiply the original price by the percentage that was discounted.

Discount = Original Price x (Discount Percentage/100)

Discount = 46.95 x (60/100) = 28.17

So, the amount of discount in dollars is 28.17

The simplified value of the equation is w = -1.

To simplify means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue. By eliminating all common factors from the numerator and denominator and putting the fraction in its simplest/lowest form, we can simplify fractions.

Given equation w/4 + 11/12 = 1/2 - w/6

the equation is written as,

w/4 + w/6 = 1/2 - 11/12

solving by LCM

(3w + 2w)/12 = (6 - 11)/12

5w = -5

w = -5/5

w = -1

Therefore the value of w is -1.

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Answer:

a) The population of interest in this situation is individuals who are following a weight loss diet plan.

b) There are several sources of bias in this study:

Self-report bias: Town A relies on self-reported weight loss, which may not be accurate as participants may not accurately report their weight loss or may exaggerate their progress.

Measurement bias: Town B uses a different method of measuring weight loss than Town A, which could introduce a bias in the results.

Selection bias: Participants in this study are self-selected, which means that individuals who are more motivated or more likely to succeed in the diet may be more likely to sign up for the study. This can lead to a bias in the results as the sample may not be representative of the population of interest.

Hawthorne effect: Participants in Town B may have changed their behaviors simply because they knew they were being weighed, which could lead to a bias in the results.

Placebo effect: Participants in Town A may have lost weight due to the mere act of participating in a study and receiving attention, which could lead to a bias in the results.

The distance from Earth to the Sun is 396 times larger than the distance from the Earth to the moon.

Scientific notation.

This is a mode of expressing large numbers of great power. Its helps in the simple expression of numbers so that some arithmetic operations can be performed as required.

In the given question, we have;

distance from Earth to the Sun = 1.47 X 10^11 meters

and

distance from Earth to moon = 3.71 X 10^8 meters

Thus,

to determine by how much is the distance between the Earth and Sun greater than that between the Earth and moon;

n = distance from Earth to the Sun/ distance from the Earth to the moon

  = 1.47 X 10^11/ 3.71 X 10^8

  = 3.962 x 10^2

n = 396

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A kitten who is just born is predicted to weigh 4.05 ounces and its weight is predicted to increase by 0.4 ounces. Then the correct option is B.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Information was gathered on the weight, in ounces, of cats for the initial three months after birth. A line of fit was drawn through the dispersed plot and had the condition w = 4.05 + 0.4d, where w is the heaviness of the cat in ounces and d is the age of the little cat in days.

A kitten who is just born is predicted to weigh 4.05 ounces and its weight is predicted to increase by 0.4 ounces. Then the correct option is B.

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