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Oksana_A [137]
2 years ago
11

Find the surface area of the cone to the nearest square unit. Use π = 3.14.

Mathematics
2 answers:
Marat540 [252]2 years ago
8 0

Answer:

339.12 cm²

Explanation:

surface area of cone: πr² + πrl

where "r" is radius, "l" is slant height

Here given:

  • radius: 6 cm
  • slant height: 12 cm

Solve for surface area:

  • πr² + πrl
  • (3.14)(6)² + (3.14)(6)(12)
  • 113.04 + 226.08
  • 339.12 cm²
olchik [2.2K]2 years ago
3 0
  • radius=r=6cm
  • l=12cm

So

TSA

  • πr(r+l)
  • π(6)(6+12)
  • 6π(18)
  • 108π
  • 339.12cm²
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Please Help!!!!! Ill give thanks and rate best!
Norma-Jean [14]

Answer:

1/216

1/8 *1/3³ ( cross multiply ) = 1/216

Did you only need the answer for the one on the top right?? Or all of them because If you need all of them I can do that too I am just assuming you just needed that one because it was selected.

4 0
3 years ago
Nelly owns farm land that has an area of 4.2 × 102 acres. Each year, the farm produces 6.72 × 104 bushels of corn. What is the a
juin [17]

The average amount of corn produced per acre represented in scientific notation can be found using the below formula:

The \;average\; amount\; of\; corn\; per\; acre=\frac{Bushels \; of\; corn\; produced\; in\; farm}{Area\; of\; farm\; in\; acres}

We are given:

Area \; of\; FARM\; land= 4.2 \times 10^2 \; acres\\ \\ Amount \; of\; corn\; produced=6.72\;  \times \; 10^4 \; bushels

Substituting the above information in the formula, we get...

The \; Average\; amount\; of\; corn=\frac{6.72 \times 10^4}{4.2 \times 10^2} \\ \\ \frac{6.72}{4.2} \times \frac{10^4}{10^2}\; =\;   1.6 \times 10^{4-2}\; =\; 1.6 \times 10^2\\ \\

Conclusion:

The \; Average \; amount\; of \; corn \; is\; 1.6 \times 10^2 \; Bushes\; per\; corn

The average amount of corn produced per acre represented in scientific notation is option B)1.6 \times 10^2bushels per acre

5 0
3 years ago
Read 2 more answers
Hey, I was wondering, what is 3(6m)+m??? Who can help me???
N76 [4]
<span>What is 3(6m) + m?

3(6m) + m = 
m becomes 1m
9m + 1m =
10m

3(6m) + m is 10m when combining like terms. </span>
6 0
2 years ago
Describe the slope of the line<br><br> Find the slope.<br><br> m =
spin [16.1K]

Answer:

m = -3/5

Step-by-step explanation:

Since the line is going downwards towards the right, it is a negative slope.

We can use the points to solve for the slope.

m = -2 - 1 / 2 - (-3)

m = -2 - 1 / 2 + 3

m = -3/5

Therefore, the slope is -3/5.

4 0
2 years ago
Solve for k. <br><br><br> 9(3-2x)=2(10-8x)
GrogVix [38]

Answer:

Step-by-step explanation:

9(3−2x)=2(10−8x)

Step 1: Simplify both sides of the equation.

9(3−2x)=2(10−8x)

(9)(3)+(9)(−2x)=(2)(10)+(2)(−8x)(Distribute)

27+−18x=20+−16x

−18x+27=−16x+20

Step 2: Add 16x to both sides.

−18x+27+16x=−16x+20+16x

−2x+27=20

Step 3: Subtract 27 from both sides.

−2x+27−27=20−27

−2x=−7

Step 4: Divide both sides by -2.

−2x −2  =  −7 /−2  

x= 7/ 2

Answer:

x= 7/ 2

3 0
3 years ago
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