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zalisa [80]
4 years ago
6

Are 3/7 and 8/28 proportional?

Mathematics
1 answer:
Eva8 [605]4 years ago
5 0

Answer:

No

Step-by-step explanation:

If you make them have the same denominator, 3/7 would be 12/28

This is because you multiplay both the numerator and denominator by 4. This means they are not proportional

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You are the only bidder in an online auction of a nintendo wii system with games and accessories. The seller has set a secret re
Alchen [17]

Answer:

1. 1/80 = 0.0125

2. 1/2 = 0.5

3. 280

4. 23.09

5. 1/2 = 0.5

Step-by-step explanation:

1. height of probability density function

\frac{1}{320-240} \\= \frac{1}{80}

= 0.0125

2. probabilty that you will win the auction given a bid of 280

= \frac{280-240}{320-240} \\=\frac{40}{80} \\= \frac{1}{2}

3. mean secret service price

\frac{320+240}{2} \\=\frac{560}{2} \\= 280

4. the standard deviation of the above

= (320-240)/12^1/2

= 23.09

5. with a new bid of 300 dollars, probability you will win auction

= [(300-280)/(320-240)]/[(320-280)/(320-240)

= (20/80) / (40 /80)

= 0.25/0.5

= 0.5

3 0
3 years ago
write the equation in slope-intercept form with y intercept of −3 and an x intercept of −4.5. Plz tell me how you got it so i no
erastovalidia [21]

The equation of the line is y = -2/3x - 3.  

To find this, we first need to turn the intercepts into ordered pairs.  

x intercept: (-4.5, 0)

y intercept: (0, -3)

Now we can use these two points and the slope equation to find slope.

m = (y2 - y1)/(x2 - x1)

m = (0 - -3)/(-4.5 - 0)

m = 3/-4.5

m = -2/3

Now that we have the slope, we can use slope intercept form to find the intercept.  

y = mx + b

-3 = 2/3(0) + b

-3 = 0 + b

-3 = b

Which allows us to model the equation as y = -2/3x - 3

6 0
3 years ago
2. If a gambler makes repeated wagers, each with a probability of winning equal to 0.40, what is
Vesnalui [34]

(c) 0.60 raised to the 5th power

<u>Explanation:</u>

The probability of winning = 0.4

The probability of losing = 1 - 0.4

                                      = 0.6

Probability of losing their first 5 wagers = ?

Probability of losing first 5 wagers = (0.6)⁵

Therefore, the probability of losing first 5 wagers is (0.6)⁵

4 0
3 years ago
What is oxygen and hydrogen classified as: minerals, elements, energy, or organisms (PLEASE HELO ASAP I WILL MARK BRAINLIEST!!!)
Alona [7]

Answer:

Step-by-step explanation:

hen molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. These two processes are represented by the two chemical equations shown at right.

7 0
3 years ago
Read 2 more answers
Please help! will make brainliest!! :)
Llana [10]

Answer:

it is 32

Step-by-step explanation:

you multipy 8 buy 4 =32

3 0
3 years ago
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