9. The measure of each exterior angle of a regular pentagon is
the measure of each exterior
angle of a regular nonagon.

Answer:

Step-by-step explanation:

100% - 20% = 80% = 64

so

64 : 80 * 100 = 80

check

80 - 20% = 64

Work Shown:

[tex]a^2+b^2 = c^2\\\\5^2+b^2 = 13^2\\\\25+b^2 = 169\\\\b^2 = 169-25\\\\b^2 = 144\\\\b = \sqrt{144}\\\\b = 12\\\\[/tex]

I used the pythagorean theorem.

Answer:

3x^2+3x/2-9

Step-by-step explanation:

collect like term

Answer:

constant (unchanged) ratio of two variable quantities

Step-by-step explanation:

y = k x ( or y = k x )

y = 15 when x = 24, find x when y = 25. find the constant of variation.

A) The collection of positive integers whose sum is 100 are: 23, 17, 6, 54, 0.

B) Another collection of positive integers whose sum is 100 are: 13, 27, 4, 56, 0.

C) Due to the fact that the units can be commuted, their sum is always equal to 20.

D) The smallest possible value is 0 and the largest is 57.

A) The formation of a collection of positive integers can be done by trial and error. For example, only using the digits {0, 1, 2, 3, 4, 5, 6, 7}.

For example, we can have;

23 + 17 + 6 + 54 + 0 = 100

Where the numbers used are: 23, 17, 6, 54, 0.

B) Another example is;

13 + 27 + 4 + 56 + 0 = 100

C) If we add the units digits of these 5 numbers, we get:

3 + 7 + 6 + 4 + 0 = 20

Now, if we compute the units digits between the different numbers, to get for example: 27, 13, 6, 54, 0

The sum is still equal to 100, and the units digits are the same ones, so we still have that the sum of the units digits is equal to 20.

d) The smallest integer that we use is 0.

For the largest we just commute the tens and units digits so we make the larger integer possible, which is:57.

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Answer:

SORRY I CAN NOT HELP YOU

Step-by-step explanation:

so, what do we need to do ?

just solve these equations and find Sam's age (and Harry's) ?

x = 3y

x = 10 + 2y

so, we simply use the first equation in the second :

3y = 10 + 2y

y = 10

x = 3y = 3×10 = 30

Sam is currently 30 years old, Harry is 10.

Answer:

30245x⁴ - x³ + 90735x - 3

Step-by-step explanation:

1. Expand the expression

(30245x - 1)(x³ + 3)

2. Multiply

30245x x x³ + 30245x x 3-(x³ + 3)

3. Determine the sign

304245x⁴ + 90735x - (x³ + 3)

4. Rewrite the expression

30425x⁴ + 90735x - x³ - 3

= 30245x⁴ - x³ + 90735x - 3

(brainliest will be appreciated :)

The volume of the cuboid is 183.96 m³

A cuboid is a plane shape with a six-faced solid called a hexahedron. The volume of a cuboid is Length × width × height

From the information given:

The volume of the cuboid is;

=  (7.3 × 6 × 4.2) m³

= 183.96 m³

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Using the Fundamental Counting Theorem, it is found that:

It is a theorem that states that if there are n things, each with [tex]n_1, n_2, \cdots, n_n[/tex] ways to be done, each thing independent of the other, the number of ways they can be done is:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

For the 2 letters(26 outcomes each), and 3 numbers(10 outcomes each), we have that the parameters are:

[tex]n_1 = 26, n_2 = 26, n_3 = 10, n_4 = 10, n_5 = 10[/tex]

Hence the number of catalog numbers is:

[tex]N = 26^2 \times 10^3 = 676000[/tex]

The ID number is divisible by 5 if the last digit is either 5 or 0, hence [tex]n_5 = 0[/tex] and the probability is:

[tex]p = \frac{26^2 \times 10^2 \times 2}{26^2 \times 10^3} = 0.2[/tex]

There is a 0.2 = 20% probability that the ID number is divisible by 5.

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There are 28 elements in the sample space and the probability of a green card is 9/28

The given parameters are:

Red = 7

Green = 9

Blue = 12

The elements in the sample space is:

Elements =7 + 9 + 12

Evaluate

Elements = 28

Hence, there are 28 elements in the sample space

This is calculated as

P =Green/Elements

So, we have:

P = 9/28

Hence, the probability of a green card is 9/28

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Based on the amounts that Morgan Cruise is getting paid, her self-employment tax will be $22,916.63.

taxable earnings from self-employment:

= 92.35% x 221,600

= $204,647.60

Self-employment tax is:

= (12.4% x 137,700 limit) + (2.9% x 200,000 limit) + (0.9% x (204,647.60 - 200,000)

= 17,074.80 + 5,800 + 41.83

= $22,916.63

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Answer:
I can help, its 45

Answer:

slope: 14

y intercept: (0,9)

Step-by-step explanation:

in the form y = mx + b, the slope is m: 14

to solve for the y intercept, we set x as 0: 14 * 0 + 9 = y interecept is 9.

Answer:

b. 0

c. 4

d. 2

e. [tex]\frac{76}{35}[/tex]

Step-by-step explanation:

b.) When translated it will become this expression 10 - [(2x15)/3] = 0

c.) It will become [tex]\frac{4(12-7)}{5}[/tex]

d.) This will transform to  [tex]\frac{(\frac{78-13}{5}) + 5}{9}[/tex]

e.) The first eq is [tex]\frac{4(7+3)}{8}[/tex], then after the changes it becomes [tex]\frac{4[\frac{(7+3)+9}{7}]}{5}[/tex]

Answer:

In 3 years, Dianna will be 4 times as old as she was 33 years ago. How old is Dianna now?

Choose the most logical value for the variable to represent.

x= Diana's age now

This question is impossible to fully answer without further context. (Who is Dianna? Why do we need her age?)

However, it can be noted that [tex]x[/tex] is easily the most common variable name whenever you have a missing value in an equation. Generally, it is understood by mathematicians that [tex]x[/tex] and most other letters denote an unknown value, something to either use in solving the equation or something to find on its own.

The attached figure represents the complete flowchart.

The given statement is:

∠1 ≅ ∠2

To prove

∠3 ≅ ∠4

By vertical angle theorem, we have:

∠2 ≅ ∠4

By transitive property of congruence, we have:

∠2 ≅ ∠3

By transitive property of congruence, we have:

∠1 ≅ ∠3

By vertical angle theorem, we have:

∠3 ≅ ∠4

See attachment for the complete flowchart.

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Answer:

Step-by-step explanation:

let the number at unit place=x

ten's place=y

hundred's place=z

x,y,z are integers.

x+y+z=9

also digit=100z+10y+x

y=2z

x+2z+z=9

x+3z=9

x=1,3,5,7,9

for x=1

1+3z=9

3z=9-1=8

z=8/3 (rejected as z is an integer.)

when x=3

3+3z=9

3z=9-3=6

z=6/3=2

z=2

y=2z=2×2=4

so number=100×2+10×4+3=200+40+3=243

Answer:

Since there are 20 chickens in one supermarket, and 25 chickens in the other supermarket, there are 45 chickens to choose from.

The values of the functions from the graph and table are; (f ° g)(4) = 4 and x = 0 at  (g ° f)(x) = 1

1) We want to find the value of (f ° g)(4). This can also be expressed as;

f(g(4))

Now, from the given graph, g(4) = 2. Thus;

f(g(4)) = f(2)

From the table, f(2) = 4. Thus;

(f ° g)(4) = 4

2) We are given; (g ° f)(x) = 1

This is also expressed as;

g(f(x)) = 1

From the graph g(x) = 1 is at x = 1. Thus;

f(x) = 1 and from the tabe;

x = 0 at f(x) = 1

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The question asks the value of f(x) when x = 4 in the equation

x = 4 is less than or equal to 4, so we use the first equation in the piecewise functions => {4x when x≤4}

Solving for f(x):

4(4)=16

16 is the answer!

Hope it helps!

The circumference of the larger circle is about 12.57 inches. The circumference of the smaller circle is about 3.14 inches. So, the total length of gold leaf on a tag is approximately 15.71 inches.

The circumference will be:

= 2πr

= 2 × 3.14 × 2

= 12.57 inches.

The circumference of the smaller circle will be:

= 2πr

= 2 × 3.14 × 0.5

= 3.14

The total length will be:

= 12.57 + 3.14

= 15.71 inches.

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Answer:  [tex]a_{n}=5000(1.02)^{n-1}[/tex]

Step-by-step explanation:

to get the rate do:

5100/5000 to get 1.02

Also for geometric sequence, the exponent 'n' is always subtracted by 1

Therefore, your answer is:

[tex]a_{n}=5000(1.02)^{n-1}[/tex]

The percentage increase China's population from 1970 to 1995 is: 56.25%.

Percentage increase = (Final Value - Original Value)/Original value × 100.

Given the following:

Original value = 0.8 billion

Final Value = 1.25 billion

Final Value - Original Value = 1.25 - 0.8

Final Value - Original Value = 0.45

Percentage increase = 0.45/0.8 × 100 = 56.25%.

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The regression equation is (d) log(y) = 0.064x + 1.706

The table of values is given as:

x   2   3   4   5   6

y   73  77  85  101  133

Calculate the logarithm of the y values.

So, we have:

x          2   3   4   5   6

log(y)   1.86  1.89  1.93  2  2.12

Next, we enter the above values in a regression calculator.

From the calculator, we have the following summary:

The regression equation is then represented as:

log(y) = bx + a

Where:

b = SP/SSX = 0.64/10 = 0.064

a = MY - bMX = 1.96 - (0.064*4) = 1.706

So, we have:

log(y) = 0.064x + 1.706

Hence, the regression equation is (d) log(y) = 0.064x + 1.706

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Answer: D. log(y) = 0.064x + 1.706

Step-by-step explanation: I got it right on my test

The maximum number of the data points that may not actually be on the line is 15

The number of points is given as:

Points = 15

A line of best fit implies that the model is a regression model

In a regression model, all the data points may not pass through the line of best fit.

This means that the maximum number of the data points that may not actually be on the line is 15

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Answer:

[tex]period \: of \: sin(2x) = \pi \\ period \: of \: cos \frac{x}{4} = 8\pi \\ period \: of \: tan \frac{x}{3} = 3\pi[/tex]

Step-by-step explanation:

Hello !

[tex]periodicity \: of \: a.sin(bx + c) + d = \\ \frac{periodicity \: of \: sin(x)}{ |b| } \\ periodicit \: of \: sin \: (x) \: is \: 2\pi = \\ \frac{2\pi}{2} \: simplify = \pi \\ periodicity \: of \: a.cos(bx + c) = \\ \frac{periodicity \: of \: cos(x)}{ |b| } \\ periodicit \: of \: cos \: (x)is \: 2\pi = \\ \frac{2\pi}{1\frac{1}{4} } \: simplify \: = 8\pi \\ periodicity \: of \: a.tan(bx + c) = \\ \frac{periodicity \: of \: tan(x)}{ |b| } \\ periodicity \: of \: tan(x) \: is \: \pi \\ \frac{\pi}{} \frac{1}{3} [/tex]