HELPPPP
Which of the following formulas can be used to determine the measure of the angle of rotation for a regular polygon with n sides?

Answer:

the subtraction property of equality

Step-by-step explanation:

trust

Answer:

Subtraction

Step-by-step explanation:

EXPLANATION

We can apply the Obtuse Triangle Theorem to check if the the measures of the sides appropiately represents the measures of the triangle:

Perimeter = 40 cm = 4x + 2x + 2 + x + 3

Adding like terms:

40 = 7x + 5

Subtracting 5 to both sides:

40 - 5 = 7x

Adding like terms:

35 = 7x

Dividing both sides by 7:

35/7 = x

Simplifying:

Then, by the obtuse triangle theorem, the following relationship should be fulfilled.

Answer:

Step-by-step explanation:

y=-3x+24

(0,24)

Explanation:

Take any two whole numbers you want. Multiplying them together always result in some (other) whole number.

Examples:

In other words,

(whole number)*(whole number) = whole number

This is why we consider the set closed under multiplication.

Answer

Check Explanation

Explanation

a ≡ b (mod n)

This means a and b have the same remainder when they are divided by n

So, to check if this question works out, we divide what is on the left hand side and what is on the right hand side by what is after the mod.

1) 67 × 73 ≡ 1 × 3 (mod 5)

4891 ≡ 3 (mod 5)

So, to check,

(4891/5) = 978 remainder 1

(3/5) = 0 remainder 3

The remainders are different.

So, this equation is wrong and does not work.

This equation is false.

2) 83¹⁴⁴ ≡ 15¹⁴⁴ (mod 17)

Noting that it is the units digit that determines the remainder

3 raised to the power of a multiple of 4 gives 81 raised to the power of a positive integer

5 raised to power of a multiple of 4 gives 625 raised to the power of a positive integer

So, using these numbers,

83¹⁴⁴ ≡ 15¹⁴⁴ (mod 17)

81 ≡ 625 (mod 17)

(81/17) = 4 remainder 13

(625/17) = 36 remainder 13

The remainders are the same.

So, this equation is correct and it works.

This equation is true.

Hope this Helps!!!

For the graduation party, Nathan and Sydney should order  pieces of 70 fried chicken ,  11 pounds of meats  and 36 pounds of lasangnia .

In the question ,

it is given that

there are 15 drop in guests , and drop in guests are counted as half a guest .

So , the number of half guests = 15/2 = 7.5

number of guests for the party = 40 guests

So , total number of guests = 40+7.5 = 47.5

From the table , we can see that

19 party guests need 28 pieces of fried chicken .

So , 1 party guests will need 28/19 pieces of fried chicken .

so, 47.5 guests will need [tex]47.5*\frac{28}{19}[/tex] pieces of fried chicken

[tex]47.5*\frac{28}{19}[/tex] = 70

hence , 70 pieces of fried chicken is needed .

From the table , we can see that

19 party guests need [tex]4\frac{1}{3}[/tex] = 13/3 pounds of meats  .

so, 1 party guests will need 13/(3*19) pounds of meats .

So, 47.5 guests will need [tex]47.5*\frac{13}{3*19}[/tex] pounds of meats .

[tex]47.5*\frac{13}{3*19}[/tex] = 10.833

≈ 11

hence , 11 pounds of meats is needed .

From the table , we can see that

19 party guests need [tex]10\frac{3}{4}[/tex] = 43/3 pounds of lasangnia .

So , 1 party guests will need 43/(3*19) pounds of lasangnia .

So, 47.5 guests will need [tex]47.5*\frac{43}{3*19}[/tex] pounds of lasangnia .

[tex]47.5*\frac{43}{3*19}[/tex] = 35.8333

≈ 36

hence , 36 pounds of lasangnia is needed .

Therefore , For the graduation party Nathan and Sydney should order 70 pieces of fried chicken , 11 pounds of meats  and 36 pounds of lasangnia .

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PLUG IN THE VALUES OF THE VARIABLES IN THE RIGHT POSITIONS AND SIMPLIFY.

[tex] \frac{1}{2} (12 - 4) \times \frac{1}{4} \\ = \frac{1}{2} (8) \times \frac{1}{4} \\ = \frac{8}{2} \times \frac{1}{4} \\ = \frac{8}{8} \\ = 1[/tex]

THE ANSWER IS OPTION B.

By properties of perpendicular lines and algebra properties, the slope of the line perpendicular to line ℓ is represented by m' > 1.

Let m be the slope of a line, in accordance with analytic geometry, the slope of line perpendicular to the first one is equal to m' = - 1 / m. The statement can be summarized by the following inequality:

0 < m < 1

Then, by algebra properties for inequalities we find that that slope for the perpendicular line is:

0 < m · m⁻¹ < m⁻¹

0 < 1 < m⁻¹

1 < m⁻¹

- m⁻¹ > 1

- 1 / m > 1

m' > 1

The slope of the line perpendicular to line ℓ is represented by m' > 1.

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Answer:

Step-by-step explanation:

First, graph your first point at (-1,3) Then, take your slope which is 1/2 and use rise over run. So from your point of (-1,3) go up 1 in your y coordinate, and 2 in your x coordinate. So your next point should be at (1,4)

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

Earnings:

January = $2350

February = january + $500

March = twice as much (february)

Step 02:

March's earnings:

February = $2350 + $500 = $2850

March = 2 * $2850 = $5700

The answer is:

She earned $5700 in March

Answer:

x = 11,2 inchs

Step-by-step explanation:

I infer that the units are in inches.

8-3 = 5

Then:

By the Pythagorean Teorem:

x² = 10² + 5²

x² = 100 + 25

x² = 125

√x² = √125

x = 11.18

to the nearest tenth:

x = 11.2 inches

Answer: The perimeter of the triangle is 69 cm.

Step-by-step explanation:

Let us consider the side of the triangle be 3x ,4x and 5x.

According to the question,

The longest side of the triangle be 30 cm.

. 5x=30cm

x=6 cm

So the side of the triangle are 18cm ,24 cm and 30 cm.

The perimeter of the triangle is the sum of sides of the triangle.

so perimeter is =15+24+30=69 cm



Answer:

Explanation:

Here, we want to get the dimensions of the rectangle

Let us represent the length by l and the width by w

From the question:

The length of the rectangle is 3 m less than double the width

Mathematically:

The product of the two represents the area

Now, let us substitute the first equation with the second:

Solving the quadratic equation, we have:

Recall:

Fencing of any rectangular region is basically represent perimeter of that rectangular region.

For most economical fencing, length L = 21.05 feet and width W = 13.301  feet.

Area of rectangular region is 280 square feet.

And length is L and width is W.

Area of rectangular region = L × W=280 square feet

W=280 / L

Since, The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 14 dollars per foot.

Therefore, Total cost, C = 6(2L + W) + 13W = 12 L + 19 W

Total cost, C = 12 L+ 5,320 / L

To find most economical cost, differentiate above function and equate to zero.

C' = 12 - 5,320 / L²

simplifying the above equation, we get

⇒ 12 - 5,320 / L² = 0

⇒ L² = 5,320 / 12

L = 21.05 feet

Therefore, L = 21.05 feet

Substituting value of L in area equation.

We get, W = 13.301  feet.

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The function that is represented on the graph is (a) y = x^2 + 4, x < 2 and y = x + 4, x ≥ 2

The graph represents the given parameter

From the graph, we have the following function types

Using the options as a guide, we have the equations to be

Next, we calculate the domain

The quadratic function stops at x = 2 with an open circle

So, the domain is x < 2

The linear function starts at x = 2 with a closed circle

So, the domain is x ≥ 2

Hence, the graphed function is (a)

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Answer:

1 hour and 40 minutes

Step-by-step explanation:

60 minutes in an hour

we have 100 minutes

100 - 60 = 40

in 100 minutes we already have 1 hour

now we have 40 minutes left

can 40 minutes make another 60?

No.

so 100 minutes make

The total area of the figure is 298.17 ft².

For the given question;

Let divide the given the figure in three parts;

The dimensions of the rectangle is;

Length = 26 - 9 = 15 ft

Breadth = 9 ft

Area = length x breadth

Area = 15 x 9

Area = 135 ft²

The dimension of the triangle is-

Base = 9 ft

Height = 15 - 7 = 8 cm

Area = (1/2) base x height

Area = (1/2) x 9 x 8

Area = 36 ft²

The dimension of semi circle is -

Radius = 9 ft

Area = πr²/2

Area = 3.14 x 9² / 2

Area = 127.17 ft²

Total area = rectangle +triangle + semicircle

Total area = 135 + 36 + 127.17

Total area = 298.17 ft²

Thus, the total area of the figure is 298.17 ft².

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∠I ≅∠L

1) Given that the triangles are similar, then we can write:

Notice that the sides are proportional to k=3/2.

2) Since we need to prove that these triangles are similar under SAS -Side, Angle Side, examining the picture we can state that one of their corresponding angles are congruent so

3) Having one of these angles as congruent would fit to prove that these triangles are similar by SAS similarity.

Answer:

∠I ≅∠L

Step-by-step explanation:

The distance (d) between two points is computed as follows:

where (x1, y1) and (x2, y2) are the points of interest. In this case, the points are (7, 8) and (-1, 0). Replacing into the equation:

We are to solve an inequality and give the answer in graph form.

The inequality is:

Let's solve for n in order to be able to answer the question.

we start by trying to isolate n on one side of the inequality symbol. So first combine 6-5 = 1 and re-write the inequality:

Now, subtract 1 from both sides, and you get the final answer:

n must be larger than or equal to 17. WHich agrees with the first answer option provided by the problem.

Step-by-step explanation:

For the first family, 5 out of the total ratio = 5/63

For the second family, 12 out of the total ratio = 12/63

For the third family, 2 out of the total ratio = 15/63

For the fifth family, 29 out of the total ratio = 29/63

a) The first family = 5/63 of the money, $630

we can therefore say the money they received is

= 5/63 ×630

= $50

b) The last family = fifth family = 29/63 of the money, 630

= 29/63 × 630

= $290

recall that the first family received $50 , the positive difference between the money received by both the first and last family

= $290 - $50

= $240

c) Since another family joins in, the total number of families become 6

we can't find the average without knowing what the second, third, and fourth family received out of that money

the second family = 12/63 ×630

= $120

the third family = 2/63 × 630

= $20

the fourth family = 15/63 × 630

= $150

in this case, we were told the average became $140

which means that

sum of money received by the families/ the number of families involved in the sharing = $140

($630+n)/6= $140

now the plan would be to make n subject of formula

$630+n = $840

take $630 to the other side, it becomes -$630

n = $840-$630

n = $210

therefore the newly added family received $210

I honestly hope I explained it properly...thank you

Answer:

-152

Step-by-step explanation:

1. Parenthesis

2. Exponents

3. Multiplication/Division (left to right)

4. Addition/Subtraction (left to right)

Always look left to right.

The first thing is 9x24=216 (3. multiply)

10-216/8x6

Then 216/8=27 (3. divide)

10-27*6

Then 27*6=162 (3. multiply)

10-162

Then finally 10-162=-152 (4. subtract)

The expression 10 - 9 x 24/8 x 6 following (PEMDAS/BODMAS) is 5.5.

We have,

To solve the expression using the order of operations (PEMDAS/BODMAS), follow these steps:

Perform multiplication and division from left to right:

10 - 9 x 24/8 x 6 can be rewritten as 10 - (9 x 24) / (8 x 6).

Perform the multiplication inside the parentheses:

10 - (9 x 24) / (8 x 6)

10 - 216 / (8 x 6).

Perform the multiplication in the denominators:

10 - 216 / (8 x 6)

10 - 216 / 48

Perform the division:

10 - 216 / 48

10 - 4.5

Perform the subtraction:

10 - 4.5

5.5

Therefore,

The expression 10 - 9 x 24/8 x 6 following (PEMDAS/BODMAS) is 5.5.

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Answer:

35

Step-by-step explanation:

sum the parts of the ratio, 4 + 5 = 9 parts

divide 63 by 9 to find the value of 1 part of the ratio

63 ÷ 9 = 7 , then

4 parts = 4 × 7 = 28

5 parts = 5 × 7 = 35 ← larger share

The all possible zeros predicted by the Rational Zero Theorem individually and separated by commas are  ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11.

P(x) = 11x³ + 2x² + x + 10

The factors of the constant term 10 is  ±1, ±2, ±5, ±10 (=p)

The factors of leading coefficient are ±1, ±11 (= q)

The possible rational zeros are p/q : ±1/1, ±1/11, ±2/1, ±2/11, ±5/1, ±5/11, ±10/1, ±10/11.

After simplification the possible roots are  ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11.

Therefore, ±1/1, ±1/11, ±2, ±2/11, ±5, ±5/11, ±10, ±10/11. are the all possible zeros predicted by the Rational Zero Theorem individually and separated by commas.

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Answer:

C

Step-by-step explanation:

8.5 - 5.6666= 2.83

Answer:

C. 2 5/6

Step-by-step explanation:

8 1/2 - 5 2/3    1. convert mixed numbers into an improper fraction

17/2 - 17/3       2. convert fractions into 2 numbers that can be subtracted

51/6 - 34/6      3. subtract

17/6                 4. convert to mixed number

2 5/6

Answer:

11

Step-by-step explanation:

How to find the arithmetic mean:

Add all numbers together, and divide by the amount of numbers.

Ans: 15 + 7 = 22

22 ÷ by amount of numbers =

22 ÷ 2 =

11

Ans = 11

Answer:

Step-by-step explanation:

Let the cost of stone sphere is s and stone cylinder is c.

According to question we have equation:

Solve it for s:

Substitute the value of c:

The car will need 6 gallons of gasoline to travel 102 miles

Given that the car travels 442 miles on 26 gallons of gasoline.

Because the more the distance, the more the volume of gasoline used, this is a direct proportion.

So, we have:

It will need 6 gallons.

It would take 9 Teenagers to finish a very large pizza in $15$ minutes.

From the knowlegde of Propotional method/ subject formular in mathematics;

From the questions:

12 Teens finished a very large pizza in $20$ minutes.

The number of teens to finish a very large pizza in $ 15 minutes would calculate thus,

12 Teens=$20$ minutes.

x Teens=$15$ minutes.

then we cross multiply:

x Teens × $20$ minutes =$15$ minutes × 12 Teens

making  x Teens subject of the formula we have;

x Teens=$15$ minutes × 12 Teens/$20$ minutes

x Teens=9 Teens

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