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astraxan [27]
3 years ago
6

Which represents a function?

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

Answer:

B should be.

Step-by-step explanation:

all options, other than B have two values in set B(y) for at least 1 value of x

hence they are not functions, as a function contains unique image of x

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Using the given points, determine the slope.
Anarel [89]

Answer:

-1.8

Step-by-step explanation:

32 minus 212 = -180

0 minus 100 = 100

-180 divided by 100 equals -1.8

7 0
3 years ago
Read 2 more answers
The number of basketball games that must be scheduled in a league with n teams is given by G(n) = (n2 - n)/2 where each team pla
Pani-rosa [81]

Answer:

There are 7 teams in the league

Step-by-step explanation:

Given that the number of games is given by:

G(n) = \frac{(n^2-n)}{2}

The equation will be used to determine the number of games. As we already know, that 21 games are scheduled which means G(n) is 21 so we have to find n when G(n) is 21

Putting this mathematically

21 = \frac{n^2-n}{2}

Multiplying equation by 2

2*21 = 2*\frac{n^2-n}{2}\\42 = n^2-n\\n^2-n-42 = 0\\n^2-7n+6n-42 = 0\\n(n-7)+6(n-7) = 0\\(n-7)(n+6)=0\\n-7 = 0 => n=7\\n+6=0 => n=-6

As the number of teams cannot be negative, the number of teams in league are 7.

Hence,

There are 7 teams in the league

3 0
3 years ago
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is
NemiM [27]

Answer:

The probability that the next spin will land on blue is 0.12.

Step-by-step explanation:

The result of the several spins are as follows:

Color           Frequency

Red                  18

Blue                   9

Green               18

Yellow              19

Purple               12

TOTAL             76

Compute the probability that the next spin will land on blue as follows:

P(Blue)=\frac{n(Blue)}{N}\\\\=\frac{9}{76}\\\\=0.1184211\\\\\approx 0.12

Thus, the probability that the next spin will land on blue is 0.12.

4 0
3 years ago
How do you find the quotient of 5/2 ÷ 1/4 ?
anastassius [24]
The answer is to what is 5/2 divided by 1/4 is 10
3 0
4 years ago
Calculate each probability
GREYUIT [131]

Complete question:

Calculate each probability given that P(A) = 0.2, P(B) = 0.8, and A & B are independent.

a) compute P(A and B)

b) If P(A|B) = 0.7, compute P(A and B).

Answer:

(a) P(A and B) = 0.16

(b) P(A and B) = 0.56

Step-by-step explanation:

Two events are independent if occurrence of one event does not affect possibility of occurrence of another.

(a) if A and B are independent, then P(A and B) = P(A) x P(B)

                                                                               = 0.2 x 0.8

                                                                               = 0.16

(b)  If P(A|B) = 0.7, compute P(A and B)

Considering the notations of independent events,

P(A/B) = P(A)\\\\\frac{P(A \ and \ B)}{P(B)} = P(A)\\\\Thus, P(A/B) = \frac{P(A \ and \ B)}{P(B)}\\\\P(A \ and \ B) = P(A/B) *P(B)

                     = 0.7 x 0.8

                     = 0.56

7 0
3 years ago
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