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4 years ago

Pls help will give brainlist

Mathematics

1 answer:

Ivenika [448]4 years ago

8 0

Answer:

1. Yes

2. No

3. Yes

4. Yes

Step-by-step explanation:

Yes, this is a function.

None of the x-values have more than one possible value for y. None of the x-values are repeated in this table.

No, this is not a function.

For each and every value of x, there can only be one y. The x-value 13 has two possible values of y, 4 and -4. This is represented in the coordinates (13, 4) and (13, -4).

Yes, this is a function.

The graph passes the vertical line test. If you were the pass a vertical line through the graph, it would only be touching the graph once, wherever the vertical line is placed.

Yes, this is a function.

The equation given is a quadratic equation for an original parabola. All parabolas, when not inverse, are functions. This parabola opens down, so it will pass the vertical line test.

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3 years ago

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Answer:

$\frac{5}{16}$

Step-by-step explanation:

1. To find the answer, add up all the marbles.

4+5+7= 16

2. Because 16 is the total number of outcomes, it will be the denominator.

$\frac{}{16}$

3. Because 5 is the number of desireable outcomes, it will be the numerator.

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(Note: the decimal equivalence is 0.3125).

(Note: the ratio equivalence is 5:16).

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2 years ago

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3 years ago

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3 years ago

The following situations showed a strong correlation which implies causation?

lions [1.4K]

Answer:

The situations that show strong correlation are;

1), 3), 4)

Step-by-step explanation:

To answer the question, we analyze each of the options in turn as follows

1) Since the speed of a car is given by the distance covered per unit time or speed = distance/time then, speed is inversely proportional to time that is an increase in speed will lead to a decrease in time to cover a given distance hence there is a strong correlation implying causation

2) Here, we have that the profit of the company is the difference between the total revenue and the total cost hence;

Profit = Revenue - Cost

As advertising is a cost, increasing the advertising budget, increases the cost and where the revenue remains, constant the profit will decrease

Therefore there is no correlation between increasing the advertising budget and increase in profit

3) When the weather is hot, people get thirsty and will like to cool down their body temperature, hence more people buy ice cream to cool down and quench some thirst hence there is a strong correlation between increase in temperature and an increase in ice cream sales which implies causation

4) For very low income employments, some employees seek excuses to try to make the most of their time hence whereby it is difficult to have another employee stand in for them, some employees may select the recognized excuse of being sick so as to explain absence from work, hence when the salary is increased, they will find more reasons to come to work hence there is a strong correlation between increase in salary and decrease in sick days.

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3 years ago