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Flauer [41]
3 years ago
6

Please help!

Mathematics
2 answers:
Reptile [31]3 years ago
4 0
How many centimeters was it at first then I can help you
WARRIOR [948]3 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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If f(x)=3x^2-2 and g(x)=4x+2, what is the value of (f+g)(2)
elena-14-01-66 [18.8K]

(f+g)(x)=3x^2-2+4x+2=3x^2+4x\\\\(f+g)(2)=3\cdot2^2+4\cdot2=12+8=20

5 0
3 years ago
Cody is painting the front door of his house. The dimensions of the door are 80 inches by 36 inches by 2 inches. If he paints al
Artemon [7]
To find out how much area he will paint, you will find the area of all 6 faces.

Each face is in the shape of a rectangle, so use A = lw as your formula.

Front/Back:  80 x 36 = 2880 square inches 
                    2880 square inches x 2 = 5760 square inches

Right/Left Sides:  80 x 2 = 160 square inches
                           160 square inches x 2 = 320 square inches

Top/Bottom:   36 x 2 = 72 square inches
                     72 square inches x 2 = 144 square inches

5760 + 320 + 144 = 6224 square inches.

Cody will paint 6224 square inches.
3 0
3 years ago
HeLp! I need HeLp! Plz hElP! ThAnK YoU!
marin [14]
X=84° because the 84 above it and x are corresponding angles
6 0
3 years ago
Need some help for this retake
Alekssandra [29.7K]
Its is 74 because you add all of them then subtract it from the total which in your case is 360
4 0
2 years ago
Read 2 more answers
1. Joey has 38 bottles. A carton holds 6 bottles. How many cartons does she need?
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Answer:

she needs 7 cartons for the bottles and 9 cartons for the eggs

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3 years ago
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