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Ksenya-84 [330]
3 years ago
9

The value of the surface area (in square centimeters) of the cone is equal to the value of the volume (in cubic centimeters) of

the cone. The formula for the surface area S of a right cone is S=πr2+πrl, where r is the radius of the base and l is the slant height. Find the height of the cone.

Mathematics
1 answer:
dlinn [17]3 years ago
5 0

Answer:361.28

Step-by-step explanation:

This problem is all about just plugging in the numbers.

(I will be using the letters Pi to represent the actual number)

(Pi+(5*2))+(Pi*5*25)

10Pi+105Pi

115Pi

(Around) 361.28

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I need help! If you could explain that would help alot
Shkiper50 [21]

Answer:

x = 3. (Refresh if you cannot see the explanation.)

Step-by-step explanation:

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8 0
3 years ago
Solve for x using the Quadratic Formula: x2 + 2x + 1 = 0 x equals negative b plus or minus the square root of b squared minus 4
Jet001 [13]

The answer is D. x= -1

4 0
3 years ago
-6 + 3x = 9 <br> Solve for x
Eduardwww [97]

Answer:

5

Step-by-step explanation:

3x = 15 (you add the 6 over)

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4 0
3 years ago
The total cost for 9 bracelets, including shipping was $72. The shipping charge was $9. Define your variable and write an equati
stepladder [879]

Answer:

a) Equation: 9x+9 = 72

b) x =7

Step-by-step explanation:

The total cost of 9 bracelets = $72

Shipping charge = $9

a) Define your variable and write an equation that models the cost of each bracelet.

Let x be the cost of one bracelet, the equation will be

9x + 9 = 72

As 9 bracelets were there and the shipping cost was 9 and total cost was 72.

b) Use the equation you have written above determine the cost for each bracelet. Show the algebraic steps that it takes to find the answer.

Now solving the equation to find the value of x that represent cost of each bracelet

9x + 9 = 72

Adding -9 on both sides

9x +9 -9 = 72 -9

9x = 63

Dividing both sides by 9

9x/9 = 63/9

x = 7

The value of x=7 so, the cost of each bracelet is $7

c) Provide your conclusion.

So, each bracelet was of cost $7 and $9 was the shipping charge. so, the total cost is $72.

We would check whether our equation is satisfied.

9x+ 9 = 72

9(7) + 9 = 72

63 + 9 = 72

72 = 72

The equation is satisfied.

4 0
3 years ago
Read 2 more answers
What does +7×(-15)= what does that equal
irinina [24]
-105 hope this helps you
6 0
3 years ago
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