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Lana71 [14]
3 years ago
9

Please help ASAP THANKS x

Mathematics
1 answer:
Trava [24]3 years ago
8 0
The formula of the volume of the sphere:
V=\dfrac{4}{3}\pi r^3
We have a diameter. It's equal double radius.
Therefore
2r=9\dfrac{1}{2}\\\\2r=9.5\ \ \ |:2\\\\r=4.75\ in.

V=\dfrac{4}{3}\pi\cdot(4.75)^3\approx449\ in^3.
Answer: D. 449 cubic inches.


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The Gaineys and the Arnolds are saving money for a trip to Utah to go snowboarding. The Arnolds are going to save a nickel on th
Debora [2.8K]

Write a recursive and explicit formula for each option.

  • The Arnolds

Save a nickel on the first day of the month and then double the amount each day for a month

=> a1 =0.05

=> a2 = a1* 2 = 0.05*2

=> a3 = a2*2 = a1* 2*2

..............................................

=>recursive an = a_{n-1} *2

=> explicit an = 0.05*2^{n-1}

  • The Gaineys

Start their savings by saving  $10  on the first day and then  $10  each day of the month

=> a1 = 10

=> a2 = a1 + 10 = 20

=> a3 = a2 +10 = 20 +10 =30

........................................................

=> recursive an = a_{n-1} +10

=> explicit an = 10 + 10( n-1)

Hope it will find you well.

8 0
2 years ago
Please help me with 5
iren2701 [21]

Answer:

Fourth chice, 3/5

Step-by-step explanation:

Add all the numbers together, 12 + 3 + 5 = 20

There's 12 green cubes out of the 20 cubes so it's 12/20 which is 3/5

5 0
2 years ago
Simplify each expression into a single number using standard algorithms.<br> 1.-3-2
liberstina [14]

Answer:

- 5

Step-by-step explanation:

Step 1:

- 3 - 2   Equation

Step 2:

- 3 - 2  Add

Answer:

- 5

Subtracting from a negative number is the same thing as adding. If you have a negative number and you have to subtract from it. You just add both of the negative numbers together.

Hope This Helps :)

4 0
3 years ago
three friends earned more then $200 washing cars. they paid their parents $28 for supplies and divides the rest of money equally
Allushta [10]
X is each friend
3x + 28 > 200
3x > 172
x > $57.33
5 0
2 years ago
Answer.
Neporo4naja [7]

Answer:

a. all matter is made of atoms

b. atoms are indivisible and indestructible

c. atoms of given elements are identical in mass and properties

d. compounds are combination of 2> different types of atoms

2. it's called Planetary model

4 0
3 years ago
Read 2 more answers
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