Given the regular nonagon (9-sided polygon) pictured below, which statements are true? Chose 2 answers. PLEASE EXPLAIN HOW YOU GOT THE ANSWER
A:The polygon has point symmetry.
B:The polygon has 40° rotational symmetry.
C:The polygon has 120° rotational symmetry.
D:The polygon has 90° rotational symmetry.

The value of 'd' will be;

⇒ d = 12

What is Equation of line?

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

A line has a slope of 9 and includes points (9, d) and (8, 3).

Now,

We know that,

Slope of line (m) = (y₂ - y₁) / (x₂ - x₁)

⇒ m = (3 - d) / (8 - 9)

⇒ 9 = (3 - d) / (-1)

⇒ - 9 = 3 - d

⇒ d = 3 + 9

⇒ d = 12

Thus, The value of 'd' will be;

⇒ d = 12

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Answer:

Check the pic i attached

Start by putting the inequality in the form

in this case c wil be how much he has sold, and d will be how much he needs to sell, and a is the price for the bar.

it would look like this

solve it like a regular equation

He will have to sell over 54 bars to win the prize.

Answer: p is greater than or equal to 8

Step-by-step explanation:

To isolate the variable (p) you divide both sides of the equation by 6 to get p by itself and the answer comes out clean because 48 is a multiple of 6.

Answer:

Divide both sides by the same factor

6p > 48

6p > 48

---     ---

6  >   6

result

p > 8

Answer:

please help I need thos answer too

Step-by-step explanation:

I wish I knew the answer to this I have 20 mins to be dont and I've already spend 10 on this question

The missing step is XW/UT=VW/XV because corresponding side of similar triangle are proportional.

What is similar triangle?

Similar triangles are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other. Similar triangles look the same but the sizes can be different.

When two triangles are similar, then their corresponding angles would be congruent while their opposite sides will be proportional to each other

In the proof, it is given, Both triangle are similar, by AA similarity theorem, hence, XW/UT=VW/XV because corresponding side of similar triangle are proportional.

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Answer:

6.24

Step-by-step explanation:

The 2 equations which can be used to solve the given situations of the numbers are:

So, the equations that can be formed are:

Let, Ronan's number be 'x' and '4x' be Kelsey's number.

Now, solve as follows:

Ronan's number be: -2/3

Kelsey's number be: 4 × 2/3 = -8/3

Let, let, Kelsey's number be 'x' and Ronan's number be '3x'.

Now, solve as follows:

Ronan's number be: 72.75

Kelsey's number be: 24.25

Therefore, the 2 equations which can be used to solve the given situations of the numbers are:

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Answer:

15 is a composite number

Explanation:

We can form 3 groups of 5 people because:

15 = 3 x 5

So, the model that shows this way to split the teams is:

If we can divide 15 into teams, we can say that 15 is a composite number.

A prime number is a number that is only divisible by 1 and by itself. Since 15 is divisible by 3 because we form 3 teams, we get that 15 is not prime, so it is composite.

Points (6,-11) and (-2,9)

then

a) Slope m= Y/X = (9 --11)/ (-2-6) = 20/-8= -5/2

b) equation of line y = mx + b

find b= y - mx = 9 -(-5/2)•(-2) = 9 - 5= 4

then equation is

y= (-5/2)x + 4

c) y-intercept of this line is

x= 0 , y= 4

d) graph of this line

Answer:

x=4

y=12

Step-by-step explanation:

replace y in the first equation since we already know what y is equal to

13x-5y=-8

13x-5(3x)=-8

13x-15x=-8

-2x=-8

/-2. /-2

x=4

Now fill in X to find y

y=3(4)

y=12

Hopes this helps please mark brainliest

Answer: The answer is G 5p²-3q+17

Step-by-step explanation:

we will have to follow given below steps if we want to plot this inequality x is less than or equal to 2.6.

A linear inequality is formed by any two real numbers or any two algebraic expressions marked by the symbols "," ">," "," or "." Ones of numerical inequality include 911 and 18>17, while algebraic examples include x+7>y, y10-x, and x y > 11

One of the inequality symbols is present in a linear inequality:. It displays non-equal data in graph style. With the inequality sign in place of the equality sign, a linear inequality appears exactly like a linear equation.

The values of x that satisfy the inequality must be determined before we may graph the inequality x = 2.6 on a number line. This can be done by changing x to a variety of values and observing which ones cause the inequality to hold true. When x is less than or equal to 2.6, we know that the inequality x = 2.6 is true. This means that the inequality will be satisfied for any value of x that is lower than or equal to 2.6. This has a range of inclusive values from -infinity to 2.6. We can use a dotted line spanning from negative infinity to 2.6 to graph the inequality on a number line. We would insert a dot for each number between negative infinity and 2.6, including 2.6 itself, since the dots on the line denote the numbers in the range. The dots on the line represent the integers in the range, which spans from negative infinity to 2.6. (i.e., all numbers less than or equal to 2.6). The open circle at 3 shows that the number is outside of the range, while the solid point at 2.6 indicates that the number is within the range.

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Answer:

Step-by-step explanation: 76=54

Answer:272 square feet

Step-by-step explanation:

The missing number in those three card are 5 and 2 when the median is 4 and the range is 3.

Median:

Median refers the middle value of the given set of numbers.

Given,

i have three number cards. the median is 4.

Here we need to find the missing number when the range is 3.

Let us consider x and y be the missing number.

We know that, the range is difference of smallest and largest number,

So, we can write it as,

x - y = 3

Now, we know that the median is the middle value

Then it can be written as,

y, 4, x

The smallest possible values of y is 1, 2, and 3

Similarly, the possible values of x is 5, 6, 7

But based on the value of range we have only take the values, 5 and 2.

Because that one is satisfies the condition of range.

Therefore, the missing numbers are 5 and 2.

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Answer:

She saves £6.30

Step-by-step explanation:

You multiply 63 by 1/10 to get 6.30 this is how much she saves

Statement 3:

Reason: Law of cosines

Statement 4:

Reason: Law of cosines

Proof

We have the following situation:

Because the law of cosines,

Therefore,

Answer:

50.00-3.75n = b

Step-by-step explanation:

50.00 is the beginning balance she has on the gift card.

If she spends 3.75 every visit, and n represents the number of visits, then 3.75n will tell you how much she has spent with each visit.

1 visit: 50.00 - 3.75(1) = 46.25

2 visits: 50.00 - 3.75(2) = 42.50

3 visits: 50.00 - 3.75(3) = 38.75

False. The student t distribution may be used to construct a confidence interval for the mean of a population that is normally distributed, so long as the sample size is small.

The student t distribution may be used to construct a confidence interval for the mean of any population, so long as the sample size is small. The student t distribution is a probability distribution that is used to estimate the population mean when the sample size is small and the population standard deviation is unknown. The student t distribution is also used to construct confidence intervals for the population mean.

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22. the coordinates are:

So to know if the are parallel or perpendicular we have to calculate the slopes so:

For QR

For ST

So they are not parallel or perpendicular.

23. the coordinates are:

Now the slopes are

For QR

This is undefine so is a vertival line

for ST:

Is undefine so is also a vertical line, this means that they are parallel

Given data:

1. The mean rain intensity

2. The median rain intensity,

3. The rain intensity mode (intensity with the highest frequency)

Therefore,

The mean : 3.7

The median : 4

The mode: 6

Answer:

[tex]2.44 \times 10^6[/tex]

Step-by-step explanation:

[tex]R=\frac{(3.8 \times 10^5)^2}{5.9 \times 10^4} \\ \\ =\frac{14.44 \times 10^{10}}{5.9 \times 10^4} \\ \\ \approx 2.44 \times 10^6[/tex]

Answer:

I hope it helps .The final answer is 2,447 × 10 to the power of 3

If 150 is the 15%, to find which number is the 100% we use the rule of 3

and the rule say that:

Hello there. To solve this question, we'll have to remember how to calculate the volume of a cylinder, given its height and diameter of the base.

Given the following cylinder:

Its volume can be calculated by the formula:

in which:

Is the area of the base given the diameter D

Plugging in this, we have:

Using the values given by the question, we have:

D = 14 cm

h = 7 cm

Therefore

Calculate the square and simplify the fraction

Multiply the numbers

y=-x-4 (a)

y=3x (b)

Put (b) into (a) and solve for x:

3x=-x-4

3x+x = -4

4x= -4

Divide both sides by 4

4x/4 = -4/4

x= -1

Replace the value of x on any equation:

y=3x = 3(-1) = -3

Solution : (-1,-3)

Graph:

We can start with the equation of the parabola in vertex form, as we know the coordinates of the vector:

The vertex is (h,k) = (-5,2), so we get:

We can use another known point, as (-6,4) to calculate the parameter a:

Now that we have no more unknown parameters, we can expland the equation to the standard form:

The equation is y=2x^2+20x+52.

Answer:

66

Step-by-step explanation:

The ratio of guinea pigs to the total number of animals is 5:11.

So, there are (30)(11/5)=66 animals in all.