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ella [17]
4 years ago
9

I need help creating the ratio table for this food drive question.

Mathematics
1 answer:
andreyandreev [35.5K]4 years ago
3 0
I'm good at ratio tables. I'm actually doing one now.. If you still need help you can ask.

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Classify the expression: 5x + 3x^2 − 7x^3 + 2
AysviL [449]

Answer:

C. Cubic expression.

Step-by-step explanation:

The highest exponent is 3 ( in the term 7x^3) so it is cubic.

3 0
3 years ago
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I need help with this one
Hunter-Best [27]
The answer is y=3x.

y=21, x=7
y=mx (m is the variable for slope)
21=m(7)
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4 years ago
I need help asap please and thank you
Juliette [100K]

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100

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3 years ago
What is the ordered pair of y=4.5x
garri49 [273]

Answer:(1,1)

Step-by-step explanation:

y=4.5x

x=y/4.5

put value of x

y=4.5(y/4.5)

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5 0
3 years ago
The 200 meter race times at a state track meet are normally distributed with a mean of 13.56 seconds and a standard deviation of
storchak [24]

The approximate probability that a runner chosen at random will have a 200 meter time less than 13.5 seconds is 0.4880 ⇒ A

Step-by-step explanation:

To find the probability of a random variable X which has a normal distribution do that

  • If X < b, find the z-score using the formula z = (b - μ)/σ, where μ is the mean and σ is the standard deviation
  • Use the normal distribution table of z to find the corresponding area to the left of z-score

∵ The 200 meter race times at a state track meet are normally

   distributed with mean of 13.56 seconds and a standard deviation

   of 2.24 seconds

∴ μ = 13.56

∵ σ = 2.24

- We need to find the probability that a runner chosen at random

   will have a 200 meter time less than 13.5 seconds

∵ X < 13.5

∴ b = 13.5

- Find z-score

∵ z=\frac{13.5-13.56}{2.24}=-0.02679

- Use the normal distribution table to find the area corresponding to z

∵ The corresponding area of z ≅ -0.03 is 0.4880

∴ P(x < 13.5) = 0.4880

The approximate probability that a runner chosen at random will have a 200 meter time less than 13.5 seconds is 0.4880

Learn more:

You can learn more about the probability in brainly.com/question/4625002

#LearnwithBrainly

5 0
4 years ago
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