MATHEMATICS MIDDLE SCHOOL

A non-scale model of the earth has a diameter of 12 in. Within an outer clay layer, there is a core made of a golf ball with a diameter of 2 in.What is the volume of the clay? Use 3.14 to approximate pi and round your answer to one decimal place.

Answers

Answer 1
Answer: fist find volume of whole
find volue of golf ball
volume of sphere=4/3 times pi times r^3

diameter=2radius
divide 2
diameter/2=radius
12/2=6=radius

4/3 times 3.14 times 6^3=904.32

whole volume=904.32

volume of golve ball
4/3 times 3.14 times 2/2=4.18666
subtract

904.32-4.18666=900.133333

the asnwer is 900.13 in^3

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Use compatible numbers to estimate the quotient 315 divided by 8 answer quickly thank you!

Answers

315 is about 320 which is divisible by 8 320/8 is 40

Answer:

39.275 or 39 R 3

Step-by-step explanation:

Hope it helped!

How does a digital in the ten thousand place compare to a digit in the thousands place

Answers

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How do you turn 20/3 into a mixed number

Answers

6 2/3 You could have looked up: 20/3 as a mixed number to get many answers also. :)

What is the missing reason in step 5A. Linear pair postulate

B. Givin

C. Definition of complementary angles

D. Congruent complements theorem

Answers

Answer:

(A) Linear pair postulate

Step-by-step explanation:

Given: AB intersects DE at point C.

To prove: ∠DCB≅∠ECA

Proof:

Statements                                                                   Reasons

1. AB intersects DE at point C.                                      given

2. ∠DCB and ∠BCE are a linear pair                       Definition of linear pair

3. ∠DCB is supplementary to ∠BCE                        Linear pair postulate

4. ∠BCE and ∠ECA are a linear pair                       Definition of linear pair

5. ∠BCE is supplementary to ∠ECA                       Linear pair postulate

Thus, from statement 2 and 5, we have

∠DCB+∠BCE=180° and ∠BCE+∠ECA=180°

⇒∠DCB+∠BCE=∠BCE+∠ECA

⇒∠DCB≅∠ECA

Hence proved

thus, option A is correct.

What is the final price for a pair of $39.50 jeans after 5% sales tax has been added?

Answers

the answer will be $41.45 or $41.46 i'm not sure what you answer choices are! hope this helped!
The answer is $41.46 hope this helps

What is eight tenths in decimals

Answers

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