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Flauer [41]
2 years ago
6

Please help!

Mathematics
2 answers:
Reptile [31]2 years ago
4 0
How many centimeters was it at first then I can help you
WARRIOR [948]2 years ago
3 0

Answer:

After 7 hours about 70% of the candle was melted

Step-by-step explanation:

First let's find the volume of the candle and the volume of wax melted off. Then we can divide them to find the percent of the candle that is melted off.

=πr  

2

h

=π⋅4  

2

⋅6

=π⋅16⋅6

=96π             use 3.14 for π

=301.44 cm  

3

 

​  

Hint #33 / 6

We know the candle is burning at a rate of 30\text{ cm}^330 cm  

3

 per hour because after 22 hours, 60\text{ cm}^360 cm  

3

 of the candle was melted off.

Percent candle melted off

​    

=  

Original volume of candle

Amount candle melted off

​  

=  

301.44 cm  

3

 

210 cm  

3

 

​  

≈70%

​  

Hint #66 / 6

After 77 hours about 70% of the candle is melted off.

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Use the x-intercept method to find all real solutions of the equation -9^3-72^2-96x+36=3x^3+x^2-3x+8
Vadim26 [7]

Answer:

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Step-by-step explanation:

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___

The graph shows the x-intercept to be 0.2906. The value above was obtained by Newton's method iteration. The roots of this cubic will all be irrational.

7 0
3 years ago
type the correct answer in each box. Use numerald instead of words. If necessary, use/ for the fraction bar​
Olegator [25]

Answer:

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7 0
2 years ago
What is the difference of the volumes of the two oblique pyramids, both of which have square bases? Round the volumes to the nea
ad-work [718]

Answer:

Step-by-step explanation:

See attachment for the figure

Volume of pyramid can be defined as

V = 1/3 x area of the base x height.

-> Pyramid A:

Volume of Pyramid can be determined by:

V = 1/3 x (2.6cm)² x (2cm) = 4.5067 cm³

Pyramid B:

Volume of Pyramid can be determined by:

V = 1/3 x (2cm)² x (2.5cm) =  3.3333 cm³

Difference b/w two oblique pyramids: 4.5067 cm³ - 3.333 cm³ = 1.17 cm³

By Rounding the volumes to the nearest tenth of a centimeter

1.17cm³ ≈ 1.2cm³

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4 0
3 years ago
Matt had 3 piles of coins, A, B and C.
tatiyna

Answer:

48

Step-by-step explanation:

72  into  ratio of 1 : 2 :  6

4 0
3 years ago
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