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3 years ago

Help please I'm trying to graduate (Only #3)

Mathematics

1 answer:

lesya [120]3 years ago

5 0

The pieces shown are like all of 8 slices of a pizza.

the area of cirlce = area of the rectangle formed by rearranging the pizza slices.
= (pi*r)*r

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What are the solutions to x2 + 8x + 7 =0?

Nata [24]

The chosen topic is not meant for use with this type of problem. Try the examples below.

y = x+4

y = 2x-5

y = x-1

7 0

3 years ago

the length of a rectangle is 4 times its width. The rectangles perimeter is 68 feet what is the rectangles length and width ??

kodGreya [7K]

Answer:

Length = 27.2

Width = 6.8

Step-by-step explanation:

P = L+L+W+W

68 = 4(L+L)+W+W

68 = 4(x+x)+x+x

68 = 4x+4x+x+x

68 = 10x

x = 6.8

L = 4x

L = 27.2

W = x

W = 6.8

68 = 27.2+27.2+6.8+6.8

68 = 68

7 0

3 years ago

in Math class we are Learning about Pi which equals 3.14 how do you find the diameter and radius i dont understand it can you gu

kirill [66]

If you're finding diameter or radius based on circumference, use the formula C = πd. You would divide the circumference by pi to get the diameter, then divide the diameter by 2 to get the radius.

If you're finding diameter or radius based on area, use the formula A = πr^2. You would divide the area by pi, then find the square root of that value which is the radius. Just multiply the radius by 2 to find diameter.

7 0

3 years ago

A tile is selected from seven tiles, each labeled with a different letter from the first seven letters of the alphabet.

MArishka [77]

Answer:

Step-by-step explanation:

U= {A,B,C,D,E,F,G}

X = {A, B, C, D}

Y = {A, C, E, F}

a) X or Y = {A, B, C, D} and {A, C, E, F} = {A, B, C, D, E, F}

B) X and Y = {A, B, C, D} or {A, C, E, F} = {A, C}

c) Complement of X = {A,B,C,D,E,F,G} - {A, B, C, D} = {B,D,G}

7 0

3 years ago

The sum of a students three scores is 217. If the first is 30 points more than the the second, and the sum of the first two is 1

nekit [7.7K]

Answer:

First score is 90

Step-by-step explanation:

Let A represent the first score

Let B represent the second score

Let C represent the third score

A+B+C=217 equation 1

If the first score A is 30 points more than the second,B

A=B-30 equation 2

Lastly,sum of A&B is 16 more than 2C

A+B=2C+16 equation 3

From equation 1

A+B=217-C equation 4

substitute for A+B in equation 3

217-C=2C+16

217-16=2C+C

201=3C

C=67

substituting C in equation 4

A+B=217-67

A+B=150

if the first score more than the first,then the first 90 while second 60 since A+B=150

3 0

3 years ago

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