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Ksenya-84 [330]
3 years ago
9

What is the exact volume of the cone? Radius is 9cm and the height is 6cm.

Mathematics
1 answer:
Maksim231197 [3]3 years ago
4 0
The answer is 339.29

2\pi9 \times 6
The formula is
2\pi \: r \:  \times h
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Sam's van travels 208.8 miles on 9 gallons of gasoline. Hasan's small car travels 234.4 miles on 8 gallons of gasoline. What is
poizon [28]

Answer:

The difference between the vehicles is 0,009 gallons per mile.

Step-by-step explanation:

To know the difference between the vehicles in gallons per mile we need to obtain this information for each car:

-Sam´s van

  Gallons per mile: 9 gallons/208.8 miles

  Gallons per mile: 0.0431

-Hasan´s small car:

 Gallons per mile: 8 gallons/234.4 miles

 Gallons per mile: 0.0341

The difference between the vehicles is:

0.0431-0.0341= 0,009 gallons per mile

5 1
3 years ago
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2/3x+15=17 please and thank you
frozen [14]

Answer:

x=3

Step-by-step explanation:

2/3x+15=17

first subtract 15 from both sides

2/3x=2

multiply by 3 to eliminate the fraction

2x=6

divide by 3

x=3

7 0
3 years ago
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Each square is one square unit. Sienna uses the same square units to draw a 6 x 2 rectangle and says that it has the same area a
Grace [21]

Answer:

Yes, Sienna is correct because 6 times 2 is 12 and 3 times 4 is 12.

3 0
3 years ago
Value of m varies directly as value of n and n=5 when m=12. What is n when m=18?
ohaa [14]
Simplify the problem down, so:

m = 12 & n = 5
m = 6 & n = 2.5 <span>(divided each number by 20)
</span>
Now m is a factor of 18. Multiply each number by 3.
Answer: m = 18 & <span>n = 7.5</span>
6 0
3 years ago
Someone please help me on this I'm unsure if my answer is correct
mafiozo [28]

Answer:

A. length = 23 cm; width = 5 cm

Step-by-step explanation:

So if 4 times the width would be 4w and 3 more than would be + 3, the equation would be l = 4w + 3. If the perimeter is 56, then the new equation, 2(4w + 3) + 2(w) = 56 can be formed. This simplifies to 8w + 6 + 2w = 56, then to 10w + 6 = 56, then to 10w = 50, and finally, w = 5. So the width is 5, and now plug it into the first equation.

l = 4(5) + 3, becomes l = 20 + 3, becomes l = 23.

So the dimensions are: length = 23 cm, width = 5 cm.

*And just to be sure, 2(23 + 5) = 2(28) = 56 which is correct.

4 0
2 years ago
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