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goblinko [34]
3 years ago
12

There were 420 matches in the football tournament, with each team playing one team at a time on its own and others' fields. How

many teams participated in the competition?​
Mathematics
1 answer:
kotegsom [21]3 years ago
8 0

Answer:

840

Step-by-step explanation:

If two teams play one match and there is 420 matches, you just multiply 420 by 2.

You might be interested in
what is an equation of the line that passes through the point (8,0) and is parallel to the line x -4y=20
Tasya [4]

Step-by-step explanation:

Y-0 = 1/4(x-8)

4Y= x-8

4Y-x+8=0

8 0
3 years ago
For some postive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770. The value of Z is
Talja [164]

Answer:

1.16

Step-by-step explanation:

Given that;

For some positive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770.

This implies that:

P(0<Z<z) = 0.3770

P(Z < z)-P(Z < 0) = 0.3770

P(Z < z) = 0.3770 + P(Z < 0)

From the standard normal tables , P(Z < 0)  =0.5

P(Z < z) = 0.3770 + 0.5

P(Z < z) =  0.877

SO to determine the value of z for which it is equal to 0.877, we look at the

table of standard normal distribution and locate the probability value of 0.8770. we advance to the  left until the first column is reached, we see that the value was 1.1.  similarly, we did the same in the  upward direction until the top row is reached, the value was 0.06.  The intersection of the row and column values gives the area to the two tail of z.   (i.e 1.1 + 0.06 =1.16)

therefore, P(Z ≤ 1.16 ) = 0.877

8 0
3 years ago
IM SOO CONFUSEDD help???
lozanna [386]

Answer:

D.

Step-by-step explanation:

To tell whether the domains can include 0, all you need to do is find where x = 0, and whether the y-value is real.

h(x) = sqrt(2x^2 + 5x - 3)

= sqrt(0^2 + 5 * 0 - 3)

= sqrt(-3)

Since this includes the square root of a negative number, h(0) is an imaginary number. That means that we can eliminate choices A and B.

If you look at the graph of w(x), when x = 0, there is a real value for the y-value on the graph. But, if you think about it, if you have 0 workers, there is no way that you can still be producing wrenches. So, the domain cannot contain 0.

Your answer will be D.

Hope this helps!!

3 0
3 years ago
I NEED HELP I WILL GIVE BRAINLIEST!!!
sergiy2304 [10]

Answer:

The probability is 2/5.

Step-by-step explanation:

4/5 is the probability of not getting a 5

1/2 is the probability of flipping heads

4/5x1/2 = 4/10 = 2/5

3 0
2 years ago
A tv costs £800. Work out the price after a 3% discount.
Blababa [14]

3% = 800/ 100 = 8, 8x3= 24

800-24 = 776

£776

5 0
2 years ago
Read 2 more answers
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