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AleksandrR [38]
3 years ago
12

30 points. Participant A runs at a slower rate than Participant B. Both participants run at a constant rate. This table represen

ts Participant A. Time (min) 5 8 12 15 Number of laps run 2.75 4.4 6.6 8.25 Which equation could represent Participant B? Time in minutes is represented by x and number of laps run is represented by y. Select each correct answer. y = 0.3x y = 0.9x y = 0.7x y = 0.5x
Mathematics
1 answer:
Mamont248 [21]3 years ago
7 0
Participant A runs
2.75 laps in 5 minutes.
2.75/5 = 0.55 lap/minute

If x = minutes, and y = laps, then the equation for Participant A is
y = 0.55x

y = 0.3x and y = 0.5x represent a slower participant than A.

Participant A is slower than Participant B, so Participant B must run faster than Participant A.

y = 0.7x and y = 0.9x represent a faster race that y = 0.55x

Answer:
y = 0.7x
y = 0.9x
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<h3>What is Binomial Distribution?</h3>

Binomial distribution is known to be a kind of probability distribution whos models or show the probability of getting one of two outcomes in any  said number of points or parameters.

Note that:

5abc -2a² + 6abc

Add like terms

= 11abc - 2a²

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Simply

=5 . 2x³⁺² - -10x⁴ +3x⁵+ 3x∙ 2x⁴

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The same applies for the rest. Therefore, one can say that Based on the four expressions written above (image attached) one can say that She is right about the remaining four expressions as they all can shown or expressed as binomials.

Learn more about Binomial Distribution from

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2 years ago
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D. None of the choices are correct.

Step-by-step explanation:

Systematic sampling refers to a method of random sampling during which sample members are extracted from a larger population and then collecting corresponding observations using a constant interval between samples taken. This interval, called the sampling interval, is measured by deducting the size of the population by the required sample size. As per the question, the store manager asks every 25th person about the sales which is a classic example of systematic sampling.

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Answer:

\boxed{\sf \ \ \ x=-5 \ \ \ or \ \ \ x=-1 \ \ }

Step-by-step explanation:

x^2+6x+5 = x^2+x+5x+5 = x(x+1)+5(x+1)=(x+5)(x+1)

so

x^2+6x+5 = 0  (x+5)(x+1)=0\\\\ x = -5 \  or \ x=-1

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