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dexar [7]
3 years ago
13

How many games must be played when 7 players are in the tournament?

Mathematics
1 answer:
AURORKA [14]3 years ago
7 0
I believe the answer is 14
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Calculator<br> What is the value of a?
Andrews [41]

Answer:

15

Step-by-step explanation:

20^2 + x^2 = 25^2

= 400 + x^2 = 625

= x^2 = 225

= x = 15

5 0
2 years ago
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What is the area of a regular nonagon with 10 cm side length and an apothem of 6 cm?
pickupchik [31]

The area of the regular nonagon is 270 sq cm.

Step-by-step explanation:

Given,

Each side of a regular nonagon (b) = 10 cm

The length of apothem (h) = 6 cm.

To find the area of the nonagon.

Formula

The area of a nonagon with b as each side and h as apothem is  = 9(\frac{1}{2}bh)

Now,

Putting the value of h and b we get,

Area = 9(\frac{1}{2}×10×6) sq cm = 270 sq cm

Hence, the area is 270 sq cm.

8 0
3 years ago
In the function f(x)=6x^2-4, what is the value of f(-2)?
BartSMP [9]

In order to find the value of f(-2), you can plug -2 wherever x is.

f(x) = 6x^2 - 4

f(-2) = 6(-2)^2 - 4

f(-2) = 6(4) - 4

f(-2) = 24 - 4

f(-2) = 20

Thus, the value of f(-2) is 20. Hope this helps! If you have any other questions related to this, let me know.

4 0
3 years ago
the altitude of the hypotenuse of a right triangle divides the hypotenuse into segments of lengths 14 and 8. what is the length
lisov135 [29]

Answer:

B. 4\sqrt{7}

Step-by-step explanation:

The right triangle altitude theorem states that the altitude of a right angled triangles formed on the hypotenuse is equal to the geometric mean of the 2 line segments it creates.

This can be represented as:

h = \sqrt{(xy)}

Where,

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x and y are the lengths of the 2 segments formed.

Therefore, the length of the altitude = h = \sqrt{(14*8)}

h = \sqrt{112}

h = \sqrt{16}*\sqrt{7}

h = 4\sqrt{7}

3 0
3 years ago
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NISA [10]

For the first one its a slope of -2/3

The second one is 4/5

and the third one is -1/7

3 0
2 years ago
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