Answer:
10, there will be 20 left open
Step-by-step explanation:
if each bus holds 42 students and there are 400 going then you need to divide 400 by 42, and then round up, to find how many seats will be left open, you take the answer and then multiply it by 42 and then subtract 400.
sorry for not putting my work last time.
Answer:
D is correct
Step-by-step explanation:
A linear expression contains no higher power exponents than 1
Only D satisfies this as 4x+4 is the same as 4x^1+4
Hope this helped!
Answers:
- b) Two way table
- b) Categorical variable
- d) Relative Frequency Table
- c) Association
- b) The max noise level is 1.5 dB per thousand people
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Explanation:
- As the name suggests, we have 2 dimensions to the table. Along the left is one variable, and the top is another variable. This helps us lay out all the possible outcomes in a visual organized way.
- There's not much to talk about here. The name pretty much speaks for itself. Each category is basically like a separate bin or name.
- Frequency refers to the count of something (eg: 30 people have a hat) while relative frequency is how that count is in relation to the total (eg: 10% of the group has a hat). Relative frequencies can be expressed as fractions, decimal form, or percentage form. It will depend on what your teacher wants.
- We consider the variables to be dependent if they are linked somehow. For example, if it rains, then its fairly likely the number of accidents on the road increases. The variables "it rains" and "number of accidents" are dependent and associate with each other.
- The value 1.5 is the slope of the regression line. Note how the line is in the form y = mx+b with m = 1.5; the slope tells us the rate of change. Each time x goes up by 1, the predicted y value goes up by 1.5 decibels. In this context, it means that each time you add 1000 people, the predicted/estimated max noise level will increase by 1.5 dB. For context, a whisper is at about 30 dB, regular talking is about 50 dB, while a jet engine is about 140 dB.
We will simplify the inequality to:
x > -3
Then we conclude that the correct option is d.
<h3>
</h3><h3>
Which number line shows the solution of the inequality?</h3>
Here we have the inequality:
-5x + 20 < 35
Solving it for x, we get:
-5x < 35 - 20
-5x < 15
x > 15/(-5)
x > -3
(the direction of the symbol changes because we divided by a negative number).
Then the number line must have an open circle at x = -3 (because it is not a solution) and an arrow that extends to the right side (the values larger than -3).
From that, we conclude that the correct option is D.
If you want to learn more about inequalities:
brainly.com/question/18881247
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