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Sauron [17]
3 years ago
10

The sum of all the 2 digit numbers is .. plz give explanation too​

Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

4905

Step-by-step explanation:

Sn= \frac{(a_1+a_n)}{2}*n\\\\Sn = \frac{10+99}{2}*90 = 4905

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Find the area of a slice of a 16 inch pizza that is cut into 8 slices
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Answer:

≈ 25 in²

Step-by-step explanation:

The general formula for the area of a circle is:

A=πr²

A = (3.14)(8²)

Since the size of the pizza is 16 inches across, the radius is half of that, or 16÷2 = 8 inches.

A ≈ 201 in²

Since there 8 slices of pizza, you can take the total area and divide by 8:

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natta225 [31]

Answer:

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Step-by-step explanation:

Pull out like factors :

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Solve :    -3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solve  :    x+2 = 0

Subtract  2  from both sides of the equation :

                     x = -2

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How many kilometers does the moon travel around Earth in one day ?<br><br> (What do I do)
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