Mathematics High School

PLEASE HELP, 30 points AND brainliest if I get an explanation :)


Find the values of the ratios (red to blue) of the perimeters and areas of the similar figures. Write the ratios as fractions in simplest form.

PLEASE HELP, 30 Points AND Brainliest If I Get An Explanation :)Find The Values Of The Ratios (red To

Answers

Answer 1

Answer:

Please check the explanation.

Step-by-step explanation:

BLUE PENTAGON

The blue shape represents the Pentagon

The length of the side a = 7

As there are 5 sides.

Thus,

The Perimeter of the Blue Pentagon = P = 5a = 5(7) = 35

Using the formula to determine the area of the Pentagon

 [tex]A=\frac{1}{4}\sqrt{5\left(5+2\sqrt{5}\right)}a^2\:\:\:\:\:\:\:\:\:\:\:\:\:[/tex]

[tex]A=\frac{1}{4}\sqrt{5\left(5+2\sqrt{5}\right)}\left(7\right)^2\:\:\:\:\:\:[/tex]

[tex]A\approx 84.3\:\:\:[/tex]

Thus,

The Area of the Blue Pentagon = [tex]A\approx 84.3\:\:\:[/tex]

RED PENTAGON

The red shape represents the Pentagon

The length of the side a = 4

As there are 5 sides.

Thus,

The Perimeter of the Red Pentagon = P = 5a = 5(4) = 20

Using the formula to determine the area of the Pentagon

 [tex]A=\frac{1}{4}\sqrt{5\left(5+2\sqrt{5}\right)}a^2\:\:\:\:\:\:\:\:\:\:\:\:\:[/tex]

[tex]A=\frac{1}{4}\sqrt{5\left(5+2\sqrt{5}\right)}\left(4\right)^2\:\:\:\:\:\:[/tex]

[tex]\:A\approx 27.5[/tex]

The Area of the Red Pentagon = [tex]\:A\approx 27.5[/tex]

Conclusion:

The Perimeter of the Blue Pentagon =  35

The Perimeter of the Red Pentagon = 20

Thus, the ratio of the perimeter is: 35/20 = 7/4

The Area of the Blue Pentagon =  84.3 = 843/10

The Area of the Red Pentagon = 27.5 = 275/10

Thus, the ratio of the Area is:

 [tex]\frac{\frac{843}{10}}{\frac{275}{10}}=\frac{843}{275}[/tex]

Related Questions

PLZZZHELP
ill mark brainliest

Answers

Answer:

[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5

Step-by-step explanation:

You need to try change the subject from x to y.

x = 4y - 2

We first move -2 to the left, making the equation

x + 2 = 4y i.e.

4y = x + 2

We then divide both sides by 4.

[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5

We now have successfully made y the subject, and effectively solving the equation.

10. Keith has 7.8 ounces of tuna salad. If
he makes 3 sandwiches with an equal
amount of tuna on each, how much tuna
does he put on each one?

Answers

Answer:2.6 ounces per sandwich

Step-by-step explanation: 7.8/3= 2.6

What is 2 x 2 x 2 x 2 x 2 x 2 x 2 is exponet form

Answers

Answer:

2^7

Step-by-step explanation:

Answer:

2^7

Step-by-step explanation:

2 to the 7th power because there are 7 2s in the whole equation

Also, 2*2*2*2*2*2*2 is 128, which is 2^7

3 + x = 18 please help!!!!!!!!!!

Answers

Answer:

X=15

all you have to do is subtract 3 from 18 to get x

Step-by-step explanation:

3 + x = 18

x=18-3

x=15

Hope this helps

Can someone help me pleas

Answers

x+2(x+8)
= x+2x+16
= 3x +16
answer: 3x + 16 (color it orange lol)

Two types of tickets are sold to a play. Floor seats cost $45 each and balcony seats cost $25 each. A play sells 107 tickets and makes a total of $3,375. How many of each type of ticket are sold?

Answers

Answer:

floor seats=35

and the balcony seats =72

Step-by-step explanation:

Step one

given data

let the floor seats be x

and the balcony seats be y

so

45x+25y=3375-------1

x+y= 107----------------2

from 2, x= 107-y

put x= 107-y in  1

45(107-y)+25y=3375

4815-45y+25y=3375

collect like terms

-45y+25y= 3375-4815

-20y=-1440

divide both sides by -20

y=72

put y= 72 in eqn 2

x+72=107

x=107-72

x=35

is 5y=7x+6 linear or nonlinear

Answers

Answer:

Linear

Step-by-step explanation:

5y=7x+6 is linear equation in two variables.

There were 20 questions on an exam. You answered 40% of them incorrectly. How many did you answer incorrectly?

Answers

40% = 0.40
20 * 0.40 = 8
Solution: you answered 8 incorrectly

Answer: 4

Step-by-step explanation: 20-10=10 which is %50. 20-16=4

Evaluate the function: f(x)=x2+2x, find f(−1)

Answers

Answer:

[tex]f( - 1) = - 1[/tex]

Step-by-step explanation:

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

Substitute x = -1 in the equation.

[tex]f( - 1) = {( - 1)}^{2} + 2( - 1) \\ f( - 1) = 1 - 2 \\ f( - 1) = - 1[/tex]

34 (7)-7
Need helpppp

Answers

Answer:

231

Step-by-step explanation:

Can someone help me! Please

Answers

Answer:

4c - 2

Step-by-step explanation:

Add up all the terms to find the perimeter.

2c + 2(c - 1)

2c + 2c - 2

4c - 2

Therefore, the perimeter is 4c - 2.

Solving systems of equation using elimination
1)2x+2y = 8
x – 2y = 4

2)x+y=8
x-y=4

3)2x+2y=4
x-y=4

4)2x+2y=4
x-y=4

5)x+2y=8
x+3y=4


I need the answer for each problem. Please help is due in 30 minutes!

Answers

Answer:

2x+2y = 8

x – 2y = 4

3x=12

x=12/3=4

x=4

2x+2y=8

2(4) + 2y = 8

8+2y = 8

2y=8-8

2y=0

y=0/2=0

2(4)+2(0)=8

8+0=8

x+y=8

x-y=4

2x=12

x=12/2=6

6+y=8

y=8-6=2

6+2=8

2x+2y=4

x-y=4

2x+2y=4

2(x-y=4)

2x+2y=4

2x-2y=8

4x=12

x=12/4=3

2(3)+2y=4

6+2y=4

2y=4-6

2y=-2

y=-2/2=-1

2(3)+2(-1)=4

6+-2=4

x+2y=8

-(x+3y=4)

x+2y=8

-x-3y=-4

-1y=4

y=4/-1=-4

x+2(-4)=8

x+-8=8

x=8+8=16

4
1. In the equation y = x + 5, what is the slope and
=
y-intercept?
m =
b=

Answers

Answer:

m = [tex] \frac{4}{3} [/tex]

b = 5

the correct answer is c

Andreas is running a race 13.1 long he already ran 1.1 miles What equation and solution correctly restore send how many miles m Andre's has lag to run

Answers

Answer:

okokokokokokokokokolkokokok

Pls help me ASAP!

Evaluate the following

a: |8| - 9 =
b: |8 - 9| =

Answers

Answer:

a = -1

b= 1

Step-by-step explanation:

8's absolute value is 8, so 8 - 9 is -1 but 8-9 = -1 and since the answer is in the absolute value bars, -1's absolute value is 1, so the answer will be 1

but in a, only 8 is in the absolute value bars, not the complete answer

From the given image, which number line doesn't belong and why?

Answers

Answer:

3

Step-by-step explanation:

A square has a perimeter of 8x - 10 units, Each side is x units long. What is the value of x?

Answers

Answer:

They want you to recognize that you can make 2 equations that both are equal to P.... the perimeter.... and then set them equal to each other and solve for x  .. as below

Step-by-step explanation:

P = 8x-10

P = 4x

4x = 8x-10

10 = 4x

2.5 = x

What is the volume of the cone?

Answers

Answer:

70/3 πcm

Step-by-step explanation:

hope this helps

Yesterday, there were 40 problems assigned for math homework. Gavin got 28 out of 40 problems correct. What percentage did Gavin get correct?

Write your answer using a percent sign (%).

Answers

He has 70% of his questions correct.

This is why because 28/40 simplified is 7/10 and I know this is by dividing each number by 4. Also 7/10 and 0.7= 70%

Answer:

70%

Step-by-step explanation:

I'm pretty sure its 70 because write it as a fraction 28/40 when divide them both and you get 0.7 which is 70. I hope that works

Simpily the expression below: 2(4x + 5y)​

Answers

Answer: 8x+10y

Step-by-step explanation:

2(4x)= 8x

2(5y)= 10y

8x+10y

Write in standard form.

a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4

Answers

Answer:

2 4 2 8 3 7 3 10 4 hope it will work

Express the ratio 14 inches to 3 feet as a fraction in simplest form

Answers

The answer is gonna be 14:36

Help I need the answer

Answers

Answer:

Step-by-step explanation:

The graphy has got a negative slope.. running down hill.. and by 4

sooo... the last choice looks good

x squared -8x+14=2x-7

Answers

Answer:

x = 3 or x = 7

Step-by-step explanation:

X² - 8x + 14 = 2x - 7

x² - 8x + 14 - 2x + 7 = 0

Now we have a quadratic equation ;

x² - 10x + 21 = 0

-3 and - 7 gives a sum of - 10 and a product of 21

x² - 3x - 7x + 21 = 0

x(x - 3) - 7(x - 3) = 0

(x - 3) = 0 or (x - 7) = 0

x = 3 or x = 7

What is the constant for 5c2+7d

Answers

Answer:

2

Step-by-step explanation:

5 and 7 are the coefficients if you need them

1. Ryan and Rachel attended the weekend games at the neighborhood stadium and bought some food at the stands Ryan paid $7.10 for 3 corndogs and 1 coke Rachel paid $7.20 for 2 corndogs and 2 cokes. How much is each corndog?

Please help :( I’ll give you brainiest ♡

Answers

Answer:

$1.75

Step-by-step explanation:

Set up a system of equations where x is the cost of a corndog and y is the cost of a coke:

3x + y = 7.1

2x + 2y = 7.2

Solve by elimination by multiplying the top equation by -2

-6x - 2y = -14.2

2x + 2y = 7.2

Add them together:

-4x = -7

x = 1.75

So, the cost of one corndog is $1.75

Sorry I tried doe

(The answer I got would be in the negatives, I don't think that would be correct)

A student usually save $20 a month.He would like reach a goal $350 in 12 months

Answers

he will need to save 30 dollars a month

Step-by-step explanation:

ANSWER QUICK PLEASE the following graph shows the solution to which inequality?

Answers

I think it’s C I might be wrong tho.

Answer:

D. 5>-3w+17

Step-by-step explanation:

i need this fast guys I'm willing to give brainly

Answers

The value of x is 40° because it is equal to angle C, Therefore if B and C are 80° that means A is 100°
The value should freaking ummm 36 dang no hold on

What is the domain of the function? {(-3,-9), (7,9), (9, 1), (7,3)} Colleen wrote her answer as (-3,7,7,9) and she got it marked WRONG! What did she do wrong?​

Answers

Answer: added

Step-by-step explanation:

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