I AM MARKING BRAINLIEST TO CORRECT ANSWER!!! PLEASE HELP!

I AM MARKING BRAINLIEST TO CORRECT ANSWER!!! PLEASE HELP!

Answers

Answer 1

Answer:

135

Step-by-step explanation:

3b + B = 180

4b = 180. ÷4

b = 45

a = 135

Answer 2
The answer will be 135

Related Questions

The equation y + 6 = one-third (X minus 9) is written in point-slope form. What is the equation written in slope-intercept form? y = one-third x minus 3 y = one-third x + 9 y = one-third x minus 9 y = one-third x + 3

Answers

The equation written in slope-intercept form is y = (1/3)x -9

What is a linear Equation ?

A linear equation is that which can be represented in the form of y =mx +c , m is the slope and c is the intercept.

The given equation is

y+6 = 1/3(x-9)

To determine the slope and the intercept this equation needs to be solved

y+6 = (1/3)x - 3

y = (1/3)x -9

Therefore this is the slope intercept format , here

the slope = 1/3

intercept = -9

To know more about Linear Equation

https://brainly.com/question/11897796

#SPJ1

ABC DEF. The area of ABC is given. Find the area of DEF

Answers

Answer: B

Step-by-step explanation:

The ratio of the areas of similar figures is the square of the scale factor.

Scale factor = image/preimage = 48/12 = 4.

So, the ratio of the areas is 16, and thus the area of DEF is (16)(90)=1440

PLEASE PLEASE PLEASE I HAVE 20 MINUNTES

Answers

Answer:

E. 38°

Explanation:

A rhombus has 360° interior angle.

Half of the other side has 180° angle.

Solve for x:

sum of interior angles = 180°

x + 14 + x + 14 + x + x = 180°

4x + 28° = 180°

4x = 180° - 28°

4x = 152°

x = 152°/4 = 38°

Sum of half interior angles=180°

So

x+x+14+x+x+14=1802x+2(x+14)=1802x+2x+28=1804x+28=1804x=152x=38°

Option E

Susan, Enrique and Martin are going for a meal.
Susan pays £26, Enrique pays £20 and Martin pays £18.
What fraction of the meal did each friend pay for?

Answers

Answer:

13/32 Susan

5/16 Enrique

9/32 Martin

Step-by-step explanation:

26+20+18=64

26/64=13/32

20/64=5/16

18/64=9/32

The cylindrical storage shed shown below is completely filled with road salt to make a town's roads safer during snow storms. About 21,000 cubic feet of road salt is used during a typical snow storm.

a. What is the total volume of the storage shed?
b. How many snow storms can the town expect to handle before the storage shed needs to be refilled with additional road salt?

Answers

Answer:

a. 40000pi ft^3

b. 5 times

Step-by-step explanation:

a. the volume of a cylinder is pi * h * r^2

r = 20ft, h = 100ft

so V = pi * 100 * 20^2 = 40,000pi or around 125663.7 ft^3

b. to find the number of times, divide the volume by the amount of salt needed per storm then round down:

40000pi/21000 = 5.98 so 5 times. notes: depending on the teacher you might just round to the nearest integer

Which of the following statements are true?
f(x)
g(x)
. A. Both graphs have exactly one asymptote.
B. Both graphs have been shifted and flipped.
. C. Both graphs are exponential functions.
0 D. Both graphs are logarithmic functions

Answers

The true statements are; A. Both graphs have exactly one asymptote. C. Both graphs are exponential functions. B. Both graphs have been shifted and flipped.

What are exponential functions?

When the expression of function is such that it involves the input to be present as an exponent (power) of some constant, then such function is called exponential function.

There usual form is specified below. They are written in several such equivalent forms.

For example, y^x

, where a is a constant is an exponential function.

The graphs are exponential functions because as x increases, the y approaches infinity.

Here, the graphs have exactly one asymptote.

we can see that both graphs appear to have been shifted and flipped especially when at their respective coordinates.

The true statements are;

A. Both graphs have exactly one asymptote.

C. Both graphs are exponential functions.

B. Both graphs have been shifted and flipped.

Read more about Function Graphs at;

brainly.com/question/11507546

#SPJ1

please help asap


6

9

18

Answers

Answer:

18

Step-by-step explanation:

The value of n = 1 , 2 , 3. Find the first 3 term and add them.

3*1 + 3*2 + 3*3 = 3 + 6 + 9

                         = 18

Krista got paid $43.75 for working 3.5 hours. How much did she earn per hour?

Answers

Answer:

12.5

Step-by-step explanation:

divide 43.75 by 3.5 to get your answer

Answer: $12.5

Step-by-Step Explanation:

Total Earnings = $43.75
Time = 3.5 hrs

Therefore,
Earnings in 1 hr = Total Earnings/Time
= 43.75/3.5
= 12.5

Earnings in 1 hr = $12.5

-4(3x+2/6)
Solving for x

Answers

Answer:

x = [tex]-\frac{1}{9}[/tex]

Step-by-step explanation:

FOIL what is in the parentheses by multiplying terms by -4.

[tex]-4(3x+\frac{2}{6})[/tex]

-4(3x) = -12x and -4(2/6) = -4/3

now add these products: [tex]-12x-\frac{4}{3}[/tex]

That is the simplified product ^, but assuming you're supposed to set the equation to equal 0...

Set equation to 0 and add the fraction to both sides. Rewrite as [tex]-12x=\frac{4}{3}[/tex]

Divide both sides by -12 to get variable, x, alone. Multiplying 4/3 by -1/12 is the same as dividing 4/3 by -12. The negative sign from the -12 make the quotient negative.

x = [tex]-\frac{1}{9}[/tex]

Answer:

x = -1/9

Step-by-step explanation:

FOIL what is in the parentheses by multiplying terms by -4.

-4(3x) = -12x and -4(2/6) = -4/3

now add these products:

That is the simplified product ^, but assuming you're supposed to set the equation to equal 0...

Set equation to 0 and add the fraction to both sides. Rewrite as

Divide both sides by -12 to get variable, x, alone. Multiplying 4/3 by -1/12 is the same as dividing 4/3 by -12. The negative sign from the -12 make the quotient negative.

x= 1/9

Kylee is playing a game she has to receive more than 20 points average of five games to move onto the next level which inequality represents the situation is T represents the total number of points Kylee earned for five games choices are
T/5 < 20
T/5 <_ 20
T/5 >_ 20
T/5 > 20

Answers

The inequality T/5 > 20 represents and T is the total number of points Kylee earned for five games situation option fourth is correct.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

We have:

Kylee is playing a game she has to receive more than 20 points on average of five games to move onto the next level.

T is representing the total number of points Kylee earned for five games

The average is 20.

T/5 is also representing the average points of five games.

She has to receive more than 20 points on average in five games:

T/5 > 20

Thus, the inequality T/5 > 20 represents and T is the total number of points Kylee earned for five games situation option fourth is correct.

Learn more about the inequality here:

brainly.com/question/19491153

#SPJ1

Jace gave $100 to her daughter Kailey and asked her to spend three parts and save two parts of the total amount. How much did Kailey spend and how much did she save?​

Answers

Step-by-step explanation:

spending 3 parts and saving 2 parts means that there are 3+2 = 5 parts in the whole.

the whole being $100.

one of the 5 parts is then 100/5 = $20.

so, she spent 3×20 = $60 and saved 2×20 = $40.

The right pengtagonal prism has a height of of 14 units.

A pentagonal prism has a perpendicular distance of 14 units between the bases. An apothem has a length of 4 units.

The volume of the prism is 840 cubic units. What is the perimeter of the base?

12 units
15 units
21 units
30 units
2 units
3 units
4 units

Answers

The perimeter of the base of the right pentagonal prism is 30 units

How to determine the perimeter of the base?

The given parameters are:

Volume = 840 cubic unitsHeight, h = 14 unitsApothem, a = 4 units

The volume of a right pentagonal prism is:

V = 0.5Pah

Where P represents the perimeter of the base.

So, we have:

0.5 * P * 14 * 4 = 840

Divide both sides by 0.5 * 14 * 4

P = 30

Hence, the perimeter of the base is 30 units

Read more about perimeter at:

https://brainly.com/question/24571594

#SPJ1

What is an equation of a circle whose center is at (2,-4) and is
tangent to the line x = -2?
(1) (x - 2)2 + (y + 4)² = 4
(2) (x - 2)² + (y + 4)² = 16
(3) (x + 2)² + (y - 4)² = 4
(4) (x + 2)² + (y - 4)² = 16

Answers

The equation of the circle with center at (2,-4) and tangent to the line x = -2 is given by:

(2) (x - 2)² + (y + 4)² = 16

What is the equation of a circle?

The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:

[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]

The circle has center at (2,-4), hence [tex]x_0 = 2, y_0 = -4[/tex].

The center is tangent to the line x = -2, hence it has a point at x = -2, since |-2 - 2| = 4, r = 4 -> r² = 16.

Hence the equation of the circle is given by:

(2) (x - 2)² + (y + 4)² = 16

More can be learned about the equation of a circle at https://brainly.com/question/24307696

#SPJ1

Describe the solution(s) to 9x² - 36x + 36 = 0 by just determining the radicand. Show your work. (10 points) Part B: Describe the solution (s) to x²-x + 4 = 0 by just determining the radicand. Show your work. (10) points) Part C: Solve 4x² + 23 – 35 using an - appropriate method. Show the steps of your work and explain why you chose the method used​

Answers

The solution to the equations are:

9x² - 36x + 36 = 0 has two equal real solutionsx² - x + 4 = 0 has no real solutionsThe factored expression of 4x² + 23 – 35 is 4(x² -3)

Part A: Describe the solution

The equation is given as:

[tex]9x\² - 36x + 36 = 0[/tex]

The above equation is a quadratic equation which can be represented as:

[tex]ax\² + bx + c = 0[/tex]

The discriminant (d) is calculated as:

[tex]d = b\² - 4ac[/tex]

So, we have:

[tex]d = (-36)\² - 4 * 9 * 36[/tex]

[tex]d = 0[/tex]

A discriminant of 0 means that the equation has two equal real solutions

Hence, 9x² - 36x + 36 = 0 has two equal real solutions

Part B: Describe the solution

The equation is given as:

[tex]x\² - x + 4 = 0[/tex]

The above equation can be represented as:

[tex]ax\² + bx + c = 0[/tex]

The discriminant (d) is calculated as:

[tex]d = b\² - 4ac[/tex]

So, we have:

[tex]d = (-1)\² - 4 * 1 * 4[/tex]

[tex]d = -15[/tex]

A discriminant of -15 means that the equation has no real solutions

Hence, x² - x + 4 = 0 has no real solutions

Part C: The solution to the expression

We have:

[tex]4x\² + 23 - 35[/tex]

Evaluate the difference

[tex]4x\² -12[/tex]

Factor out 4

[tex]4(x\² -3)[/tex]

Hence, the factored expression of 4x² + 23 – 35 is 4(x² -3)

Read more about quadratic expressions at:

brainly.com/question/10449635

#SPJ1

At their last practice, the basketball team shot free throws for 17 minutes, ran for 12 minutes, and then passed the ball for 16 minutes.

For how many minutes was the team practicing? Explain how you got your answer.

Answers

Answer:

45 minutes

Step-by-step explanation:

If you're trying to find the total number of minutes, they practiced you'd have to add.

So, if they did free throws for 17 minutes

Ran for 12 minutes

And passed the ball for 16

You'd add those up

17+16+12 = 45

In conclusion they practiced for a total of 45 minutes.

PLS HELP ASAP!… WILL MARK BRAINLIEST

Which of the following are exterior angles? Check all that apply.

Answers

The exterior angles in the given triangle are angles 4 and 5.

What are the exterior angles?

The given shape is a triangle. A triangle is a three-sided polygon that has angles that sum up to 180 degrees. The exterior angle is the angle that is formed when a line is extended from the next side and the other side of the triangle. Simply put, it is the angle that is not inside the triangle.

To learn more about angles, please check: https://brainly.com/question/2766460

#SPJ1

x²-3x+1=0
O A. 3±√15
OB. 3+√5
3± √5
o c. 2121224
OD. 5±10
3

Answers

Answer:

X=3+-√5/3

Step-by-step explanation:

x=-b+-√b^2-4ac/2

=3+-√(-3)^2-4(1)(1)/2

What are the domain and range of g(x)= √x-3?

A. D: [3, ∞) and R: [0, ∞)
B. D: [–3, ∞) and R: [0, ∞)
C. D: (–3, ∞) and R: (–∞, 0)
D. D: (3, ∞) and R: (–∞, 0)

Answers

Answer:

I guess, A is the wanted answer, but

A and D together are the really correct answer.

Step-by-step explanation:

if I understand this correctly, then

g(x) = sqrt(x - 3)

the domain of a function is the definition of all valid x (input) values.

the range of a function is the definition of all valid y (result) values.

well, the content (the arguments) of a square root cannot be negative (at least not while dealing with real numbers).

so, the answer options B and D are automatically out, because the domain contains values that would make the arguments of the square root negative.

I guess your teacher wants to focus only on the positive results of the square root, so A is the correct number.

BUT formally, without designated restrictions, a square root has always 2 solutions : a positive and a negative one.

because (-x)² = (x)² = x².

so, I would have to say that the really correct answer is

A + D, because the range contains both, the positive and the negative numbers.

9. Marianna is making a piñata that has a ball-like shape. The piñata has a surface area of 60 square feet. Use
the formula for the surface area of a sphere (S = 4m2) to find the radius of the piñata.
a
About 22.80 ft
C.
About 3.87 ft
D
la
b. About 4.78 ft
d.
About 2.19 ft
-2 6-2
1

Answers

Answer:

D. 2.19

Step-by-step explanation:

ok so the formula for the surface area of a sphere is 4[tex]\pi[/tex][tex]r^2[/tex]

We see that 4[tex]\pi[/tex][tex]r^2[/tex]=60.

To find the radius we must isolate r on one side of the equations.

[tex]r^2[/tex]=60/4[tex]\pi[/tex]

[tex]r^2[/tex] = 4.77464829276

r = [tex]\sqrt{4.77464829276}[/tex]

That is approximately equal to 2.19

Over the period of a year, Julie’s net worth decreased. Which of the following could be true? a. Julie’s assets and liabilities decreased by the same amount. b. Julie’s assets and liabilities increased by the same amount. c. Julie’s assets increased by more than her liabilities. d. Julie’s assets decreased by more than her liabilities. Please select the best answer from the choices provided A B C D Mark this and return Save and Exit

Answers

Assets are the goods you possess that can generate future economic advantage. The correct option is D.

What are assets and liabilities?

Assets are the goods you possess that can generate future economic advantage. Liabilities are amounts owed to other parties. In a nutshell, assets put money in your pocket, while liabilities take money out!

Given Over the period of a year, Julie’s net worth decreased. Therefore, the statement that is true is Julie’s assets decreased by more than her liabilities.

Hence, the correct option is D.

Learn more about Asset and Liabilities:

https://brainly.com/question/14287268

#SPJ1

Which algebraic rule describes the translation of quadrilateral ABCD to quadrilateral A’B’C’D?

Answers

The algebraic rule that best describes the translation of quadrilateral ABCD to quadrilateral A'B'C'D' is P'(x, y) = (x + 8, y + 7). (Correct answer: A)

How to determine the translation of a quadrilateral on a Cartesian plane

According to the image attached we understand that the quadrilateral ABCD is transformed into quadrilateral A'B'C'D' by applying pure translation. Translations are a kind of rigid transformation, defined as a transformation applied on a geometric locus such that Euclidean distance is conserved at every point of the construction.

Vectorially speaking, translations are described by the following formula:

P'(x, y) = P(x, y) + T(x, y)     (1)

Where:

P(x, y) - Original pointP'(x, y) - Resulting pointT(x, y) - Translation vector.

By direct comparison, we conclude that the quadrilateral ABCD is translated 8 units in the +x direction and 7 units in the +y direction. Hence, the algebraic rule that describes the translation of quadrilateral ABCD to quadrilateral A'B'C'D' is:

P'(x, y) = (x, y) + (8, 7)

P'(x, y) = (x + 8, y + 7)

To learn more on translations: https://brainly.com/question/17485121

#SPJ1

The data below show the expenditure of a housewife for a particular day
Item amount
Rice. 120
Yam. 100
Beans. 140
Vegetable 140
Meat. 180
Sugar. 40
Palm oil. 60
Display using a pie chart

Answers

The pie chart for the expenditure of a housewife for a particular day is shown below.

What is a pie chart?

A map wherein the round is split into segments, each one representing a percentage of the total.

The data below show the expenditure of a housewife for a particular day

Item amount

Rice - 120

Yam - 100

Beans - 140

Vegetable - 140

Meat - 180

Sugar - 40

Palm oil - 60

The pie chart is given below.

More about the pie chart link is given below.

https://brainly.com/question/9979761

#SPJ1

Translate the sentence into an inequality.
Four times the sum of a number and 17 is at least −26.

Answers

The sentence "Four times the sum of a number and 17 is at least −26" translated to an inequality is 4(x+17) ≥ -26

Translating sentences into inequality

From the question, we are to translate the given sentence into an equality.

The given sentence is

Four times the sum of a number and 17 is at least −26

Let the unknown number be x

Then,

The sum of a number and 17 will be

x + 17

Then,

Four times the sum of a number and 17 can be written as  

4(x+17)

Now,

"At least -26" means it is greater than or equal to -26

Thus,

Four times the sum of a number and 17 is at least −26 becomes

4(x+17) ≥ -26

Hence, the sentence "Four times the sum of a number and 17 is at least −26" translated to an inequality is 4(x+17) ≥ -26.

Learn more on Translating a sentence here: https://brainly.com/question/12307434

#SPJ1

PLEASE HELP!!!!!! WHATS THE ANSWER

Answers

Answer:

3

Step-by-step explanation:

pls mark brainliest

Does anyone know the correct answer

Answers

Answer:

[tex]2\sqrt{5}[/tex] is an irrational number.

[tex](\sqrt{3} )^2[/tex] is a rational number.

Step-by-step explanation:

There are 9 students performing in the talent show, 7 of whom will perform a dance.
If 6 students are randomly chosen to perform during the first section of the show, what is the
probability that all of them will perform a dance?

Write your answer as a decimal rounded to four decimal places.

Answers

Well shown as the question I see that it is a very simple question that even a first grader will know . If u Subtract 7 to 6 u get 1 witch means I have no idea what the answer is

Help me answer this question, please

Answers

Answer:
AB = 3√5

Explanation: You can use
a^2 + b^2 = c^2 formula.

6^2 + b^2 = 9^2.
36 + b^2 = 81.

81 - 36 = 45
√45 = 3√5




SOMEONE PLS HELP ME. ASAP PLSSS

Answers

The formula that can be used to find the area of the figure shaded green is 9² - 4². The correct option is c 9² - 4²

Calculating area of a square

From the question, we are to determine the formula that could be used to find area of the figure shaded green

From the formula for calculating area of a square

A = s²

Where A is area

and s is the side length

Then, the area of the bigger square will be

A = 9²

NOTE: Side length of the bigger square is 9m

Then,

For the smaller square, which is not shaded green

A = 4²

NOTE: Side length of the smaller square is 4m

Area of the figure shaded green = 9² - 4²

Hence, the formula that can be used to find the area of the figure shaded green is 9² - 4². The correct option is c 9² - 4²

Learn more on Calculating area of a square here: https://brainly.com/question/24487155

#SPJ1  

The solution for which of the following is neither a interger nor a fraction 4x+7=x+2 ,5x-8=x+4, 3x+2=5x+2, none of the above​

Answers

Answer:

none of the above

Step-by-step explanation:

4x + 7 = x + 2

4x - x + 7 = x - x + 2

3x + 7 = 2

3x + 7 - 7 = 2 - 7

3x = -5

3x / 3 = -5 / 3

x = -5 / 3 = -1.667

5x - 8 = x + 4

5x - x - 8 = x - x + 4

4x - 8 + 8 = 4 + 8

4x = 12

4x / 4 = 12 / 4

x = 3

3x + 2 = 5x + 2

3x - 5x + 2 = 5x - 5x + 2

-2x + 2 = 2

-2x + 2 - 2 = 2 - 2

-2x = 0

x = 0

Integers, As a whole number that can be written without a remainder,

x = 3

x = 0

(Mixed) Fraction

x = -5 / 3 = -1.667

Using the graph of the function g(x) = log5 (x – 3), what are the x-intercept and asymptote of g(x)? The x-intercept is 4, and the asymptote is located at x = 3. The x-intercept is 3, and the asymptote is located at x = 4. The x-intercept is 4, and the asymptote is located at y = 3. The x-intercept is 3, and the asymptote is located at y = 4.

Answers

The x-intercept is 4, and the asymptote is located at y = 3 , Option C is the correct answer.

What is an Asymptote ?

An asymptote is a line that a curve approaches but it never reach.

The given equation

y = log₅(x-3)

To find the asymptote

Set the argument of the logarithm equal to zero.

x - 3 = 0

The vertical asymptote occurs at

x = 3

The equation can also be written as

[tex]\rm 5^y = x-3[/tex]

To find the x intercept we will put the value of y = 0 ;

therefore

5⁰ = x -3

1=x-3

x = 4

Therefore ,The x-intercept is 4, and the asymptote is located at y = 3 , Option C is the correct answer.

To know more about Asymptote

https://brainly.com/question/4084552

#SPJ1

Answer:

The x-intercept is 4, and the asymptote is located at x = 3.

Step-by-step explanation:

I got it right on the test.

Other Questions
0 belongs to what family of real numbers?IrrationalRational, Integer, WholeRationalRational, Integer, Whole, Counting what's the answer to this 4 The angle of elevation of point P from point Q is 40. PQ = 45 km. How high is point P above the level of point Q? A motor with a power of 7.0 104 watts lifts a loaded elevator to a height of 20.00 meters for 40 seconds. what is the force exerted by the motor on the elevator? a. 1.4 104 newtons b. 7.0 104 newtons c. 1.4 105 newtons d. 2.1 105 newtons e. 3.5 105 newtons The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7The 7 in which number represents a value of 0.7*903038393JKLSi9330039=28when 834 nine=365 and 7 Can you give me the answer :" My alarm goes off in the morning.I try to go back to sleep.My dogs barking wakes me up" how can I use these three sentences with, " When, But"? when the cross product of vector A and B are 2i+3j+4k and the sum of vector A and B are 3i+8j+7k then what will be the two vectors Sally has 90 apples and she adds a double of what she subtracts. Now, she has 1/4 of 1000. How much does she add? solve 2(x+7) +3 (x+1) Help with this question: Based on these pieces of art what color seems to have been important to the Aztecs? why do you think that? How is the production of goods in a society connected to capital resources? Cooper just started a running plan where he runs 8 miles the first week and thenincreases the number of miles he runs by 5% each week. If he keeps up this plan for21 weeks, how many total miles would Cooper have run, to the nearest wholenumber? Question 2 of 35Which two phrases describe ice storms?AA. Temperatures way below freezingB. A large amount of snow fallingC. Temperatures near freezingD. A large amount of ice formingPlease help! An expression associated with arrogance is aa. frown.b. sneer.C. grin. Which change to a DNA molecule would have the least effect on an organism? an addition to a base sequence at the beginning of a gene a deletion from a base sequence in the middle of a gene a substitution in a base sequence that does not code for a protein a substitution that creates a stop code in the middle of a gene Write a one register parameter procedure that converts an ASCII digit in AL to its corresponding binary value. If AL already contains a binary value (00h to 09h), then leave AL unchanged. In either case the procedure clears the zero flag. If the value in AL is neither an ASCII digit nor a binary digit then the procedure sets the zero flag.Write a program to test the procedure. Question 1 of 10Evaluate the following expression. Round your answer to two decimal places.log79A. 0.89 What is the length of AC? (Giving 50 Points) Two 1-kg objects, C and D, increase in temperature by the same amount, but thethermal energy transfer of object C is greater than the thermal energy transfer ofobject D. If object C has a specific heat of 235 J/kg-K, which material might objectD be made of?(A) aluminum(B) brass(C) iron(D) lead how many prime number are between 2 and 22