Answer:
v = 0.416 m/s
Step-by-step explanation:
Give that,
Distance covered by a train, d = 50 m
Time taken, t = 120 s
We need to find the speed of a train. The formula for speed of an object is equal to the total distance covered divided by total time taken. It can be given by :
So, the speed of a train is 0.416 m/s.
To convert a decimal to a percentage, you multiple the decimal by 100, moving the decimal two places to the right. .79 expressed as a percentage is 79%.
Multiplication property of equality
An exponential decay function, and use it to approximate the population in 2027 is P(t) = 4001e^-(0.0037)(28) = P(t) = 4001e^-0.1036
<h3>Exponential equation</h3>
The standard exponential function is expressed as:
P(t) = P0e^-rt
- P0 is the initial population = 4001
- r is the rate. = 0.37% = 0.0037
- t is the time
Substitute
P(t) = 4001e^-(0.0037)t
If t = 28 (by 2027)
An exponential decay function, and use it to approximate the population in 2027 is P(t) = 4001e^-(0.0037)(28) = P(t) = 4001e^-0.1036
Learn more on exponential function here: brainly.com/question/12940982
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Hello!
The range of a function is all the y values it spans.
In this case, we are presented an equation y = -|x|. We can figure out the range from this information. For now, let's look at the parts individually.
The | | indicates absolute value. Absolute value is the distance a number is from 0. For example, the absolute value of -3, or |-3|, would be 3, as -3 is 3 away from 0. From only absolute value, the range would be y is greater than or equal to 0, as all numbers are a positive number away from 0.
Now, add the negative symbol. This means that the always positive result of the absolute value would become always negative. This, therefore, gives us our final solution - y is less than or equal to 0.
Therefore, your answer is the second choice, or y ≤ 0.
Hope this helps!