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3 years ago

Ming plays video games online.

Mathematics

2 answers:

kakasveta [241]3 years ago

8 0

Answer:

15 hours

Step-by-step explanation:

This if from ttm, but I'll explain anyways.

Since the question is asking how many more hours 'till Ming would have 500 points, you subtract 200 from 500. That would result with the number 300. You get 20 points per hour. So 300 divided by 20 would be 15.

Vlad1618 [11]3 years ago

7 0

Ming needs to play for 15 hours to get 500 points. They gave him 200 for signing up, so 500-200=300 more points needed. 300 divided by 20= 15 more hours.

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Given that f(x)=-3x+9, what is f(4)?

timurjin [86]

Answer:

F(4) = -3

Step-by-step explanation:

First, you would plug in 4 for x. PEMDAS, so you would multiply -3 and 4, giving you -12. Then add 9, which gives you -3.

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2 years ago

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The elevator in the empire state building goes up to the 103rd floor and descends to -5 for parking. What does 0 represent in th

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3 years ago

A random sample of 18 adults, chosen from the 1500 adults in the town, took a survey asking their opinion on a recent property t

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Answer:

C) I & III

Step-by-step explanation:

Given:

Sample size, n = 18

Sample proportion = 25% = 0.25

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For the normal condition to be satisfied, np should be greater than 10, ie np > 10.

In this case, np = 18 * 0.25 = 4.5

Since np is less than 10, the normal condition was not satisfied.

For the 10% condition to be satisfied, sample size should not be more than 10% of the general population.

Here, the sample size is 18 and the population is 1500. Therefore,

$\frac{18}{1500} * 100 = 1.2$

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2 years ago

How can you quickly determine the number of roots a polynomial will have by looking at the equation?

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One can determine the number of roots by seeing the degree of the given polynomial.

The number of roots can be determined by just seeing the highest power of the given equation.

1) for the equation x-4=0

here, the highest power of the equation is one. So, it will have one root.

<h3>What is the polynomial?</h3>

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Let's check it by simplifying using the middle term splitting method,

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1 year ago

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3 years ago