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kakasveta [241]
1 year ago
9

Which of the following is true

Mathematics
1 answer:
GREYUIT [131]1 year ago
6 0

The only correct option about the variables is A) The responding variable depends on the manipulated variable.

<h3>How to interpret Statistical variables?</h3>

A manipulated variable is a variable that is changed by the researcher. A manipulated variable is also called an independent variable. A responding variable is a variable that the researcher predicts will change if the manipulated variable changes. A responding variable is also called a dependent variable.

A controlled variable in an experiment is the one that the researcher holds constant or controls. It is also known as a constant or control variable. The controlled variable is not part of an experiment. It is not an independent or dependent variable.

Thus, the only correct option about the variables is option A.

Read more about statistical variables at; brainly.com/question/25223322

#SPJ1

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The 7 in 72 represents how many times the value of the 7 in 78 is what ?
earnstyle [38]

Answer:

One time

Step-by-step explanation:

In both the numbers 72 and 78, the place value of 7 is 70.

Hence, 7 in 72 represents one time the value of the 7 in 78.

7 0
3 years ago
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Answer:

a 95

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c 50

d 131

Step-by-step explanation:

formula (C × 9/5) + 32 = F

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2 years ago
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3 years ago
What are the domain and range of the function on the<br> graph?
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3 years ago
Following three questions refer to the information below. A coal-fired power plant produces and sells 10,000 MW electricity whil
natita [175]

Answer: Heat rejected=150000MW

Heat rate= 2.5

Step-by-step explanation:

Thermal efficiency is defined as work out divided by heat in.

Therefore

thermal efficiency = 40/100= 100000 MW/Heat in

Heat in = 250000MW

For a closed system undergoing a cycle the change in internal energy is zero. Therefore the work out of the system is equal to the net heat transfer of the system. Therefore

Work out= heat in - heat out

Therefore heat out = heat in - work out

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The heat rate is defined as the inverse of the thermal efficiency expressed in kJ/kWh.Therefore

Heat rate = 1/thermal efficiency

Heat rate = 1/0.4 = 2.5 kJ/kWh

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