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2 years ago

5x + 15 = 2x +3 x = what

1 answer:

5 0

$5x + 15 = 2x + 3 \\ 5x + 15 + 3 = 2x \\ 5x + 18 = 2x \\ 18 = 2x - 5x \\ - 3x = 18 \\ x = \frac{18}{ - 3} \\ \\ x = - 6$

Hope this will help...

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Geometry/////

Montano1993 [528]

Answer:

A = 388.58 cm^2

Step-by-step explanation:

For a cone whose base has a radius R, and a hypotenuse S, the area is:

A = pi*R^2 + pi*R*S

Where pi = 3.14

In this case, we can see that the diameter is: 15cm

Then the radius, half of the diameter, is:

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2 years ago

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hram777 [196]

Answer:

Option B

Step-by-step explanation:

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Given the height and radius, find the side of the lateral triangular faces:

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Each of 6 triangles have sides 10, 10 and 6 units.

Find the area using heron's formula:

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Total surface area:

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