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3 years ago

Please please please help

Mathematics

1 answer:

Ugo [173]3 years ago

3 0

9514 1404 393

Answer:

B. plot (0, 0) and (4, 5200) ...

Step-by-step explanation:

A proportional relationship always includes the point (0, 0). That point is the only x-intercept and the only y-intercept. Only answer choice B has you plot that point.

_____

When time is on the horizontal axis and gallons are on the vertical axis, the condition 4 hours, 5200 gallons is represented by the ordered pair (4, 5200). Answer choice B is the only one with this pair, also.

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X over 3 equals 2 over 5

natali 33 [55]

Answer:

x = 6 over 5

Step-by-step explanation:

mark me brainliest if u have any doubt ask me

4 0

3 years ago

3. From the table below, find Prof. Xin expected value of lateness. (5 points) Lateness P(Lateness) On Time 4/5 1 Hour Late 1/10

wariber [46]

Answer:

The expected value of lateness $\frac{7}{20}$ hours.

Step-by-step explanation:

The probability distribution of lateness is as follows:

Lateness P (Lateness)

On Time 4/5

1 Hour Late 1/10

2 Hours Late 1/20

3 Hours Late 1/20

The formula of expected value of a random variable is:

$E(X)=\sum x\cdot P(X=x)$

Compute the expected value of lateness as follows:

$E(X)=\sum x\cdot P(X=x)$

$=(0\times \frac{4}{5})+(1\times \frac{1}{10})+(2\times \frac{1}{20})+(3\times \frac{1}{20})\\\\=0+\frac{1}{10}+\frac{1}{10}+\frac{3}{20}\\\\=\frac{2+2+3}{20}\\\\=\frac{7}{20}$

Thus, the expected value of lateness $\frac{7}{20}$ hours.

8 0

3 years ago

Of the computer games Lynne owns, 5-12 are sport games and 3-12 are educational. What fraction of the games are either sport gam

Serhud [2]

Of 5 out of 12 (5/12) are sports games and 3 out of 12 (3/12) are educational, then you would add these together because you need a total for both because it would include one or the other, so both.

5/12 + 3/12= 8/12 or 2/3 are one or the other.

8 0

3 years ago

Read 2 more answers

Can someone help me solve this

Phantasy [73]

The picture is white I can’t help you sorry

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3 years ago

Graph points A(-1, -1), B(-1, 3) and C(3, 2) on the coordinate plane. What is the area of triangle ABC? A) 7 square units B) 8 s

Ray Of Light [21]

Answer:

8 square units is the answer

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3 years ago

Please please please help​

Please please please help