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3 years ago

What is the relationship between radius and diameter of a circle

Mathematics

1 answer:

Yanka [14]3 years ago

4 0

The radius of a circle is half way in the center.

The diameter of a circle is all the way in the center.

( there is a picture to give you a visual understanding ) :)

If you have any questions be free to ask!!!!!! :)

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A theater has 418 seats put in rows of 19 seats each. how many rows are in the theater

GarryVolchara [31]

Answer:

Step-by-step explanation:

418 divided by 19 is 22.

8 0

3 years ago

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If f ( x ) = 2 x - 5, then f (4) is _____. 17 5 4 3 Thx

Slav-nsk [51]

Answer:

f(4)= 3

Step-by-step explanation:

f ( x ) = 2 x - 5

then f(4)= 2(4)-5

f(4)= 8-5

f(4)= 3

4 0

3 years ago

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In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all t

katovenus [111]

Answer:

20 questions

Step-by-step explanation:

Given

$Correct \Marks= +5$

$Incorrect\ Marks= -2$

$Score\ Obtained = 30$

$Number\ of\ correct\ answers = 10$

Required

Number of questions answered

First, we need to get the total correct marks obtained by Roy

This is calculated by multiplying the correct marks by number of correct answers

$Total = +5 * 10$

$Total = +50\ marks$

Subtract this from the total scores obtained; This gives the total incorrect answer obtained by Roy

$Incorrect = Scores\ Obtained - Total$

$Incorrect = 30 - (+50)$

Open bracket

$Incorrect = 30 - 50$

$Incorrect = -20$

Divide this by -2 to get the number of incorrect answers

$Incorrect\ Answers = \frac{-20}{-2}$

$Incorrect\ Answers = 10$

Add this to the number of correct answers to give the total number of question answered

$Total = Correct\ Answers + Incorrect\ Answers$

$Total = 10 + 10$

$Total = 20$

Hence, Roy answered a total of 20 questions

3 0

3 years ago

Find the surface area of the rectangular prism

Umnica [9.8K]

Answer:

185.68 cm3

Step-by-step explanation:

SA = 2 (L x W) + 2 (L x H) + 2 (W x H)

= 2 (8.2 x 3.4) + 2 (8.2 x 5.6) + 2 (3.4 x 5.6)

= 2 (27.88) + 2 (45.92) + 2 (19.04)

= 55.76 + 91.84 + 38.08

SA = 185.68 cm3

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3 years ago

Which of the following polynomials is in standard form?

Marianna [84]

Answer:

Step-by-step explanation:

3 0

2 years ago