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Delvig [45]
3 years ago
5

Perform the indicated operation.

Mathematics
1 answer:
Evgen [1.6K]3 years ago
3 0

Answer:

-2

a^2+5a+6

Step-by-step explanation:

this is the answer

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For f(x) = -5x + 4, what is the value of x for which f(x) = 20
Andru [333]

Answer:

- 3.2

Step-by-step explanation:

- 5x + 4 = 20

- 5x = 20 - 4

- 5x = 16

x = 16 / - 5

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3 years ago
4
jasenka [17]

Answer:

x 3:7 y 5:9 :)

Step-by-step explanation:

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3 years ago
In a study of the effect of playing video games on sleep quality, researchers randomly assigned some participants to play an up-
Butoxors [25]

In this experiment, there is an independent variable that is the time spent playing video games.

<h3>What is an independent variable?</h3>

In research there are different ways to test a hypothesis. One of them is the experiments in which we have one or more factors that can be modified to alter the result.

These factors are known as independent variables because their variation does not depend on other factors. On the contrary, they influence the variation of other factors that are known as dependent variables.

According to the above, it can be inferred that time is the independent variable of this research because its modification is planned to evaluate the different variables that it can cause.

Learn more about experiments in: brainly.com/question/9199868

3 0
3 years ago
The price of a cell phone call costs $4.35 for 3 minutes. How much would a 20-minute call cost?
musickatia [10]
It would equal 29$ dollars because you divide 20 and 3, and with that answer you multiply by 4.35 :)
3 0
3 years ago
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6 yd<br> 11 yd<br> 16 yd<br> 5 yd<br> 13 yd
Juli2301 [7.4K]

Answer: We find out what these numbers have in common for example:

11yd+5yd=16yd so what is 13yd+6yd it is 19yd. This is your answer.

Step-by-step explanation: I hope this helps!

5 0
3 years ago
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