The associative property states that you can add or multiply regardless
of how the numbers are grouped. By 'grouped' we mean 'how you use
parenthesis'. In other words, if you are adding or multiplying it does
not matter where you put the parenthesis. Add some parenthesis any where
you like!.
A = lw
P = 2l +2w
20 = 2l + 2w.
We express the length using (1).
2l = 20 - 2w
l = 10 - w.
We write the area using the width and length expression using width.
A = w(10 - w).
A = 10w - w2 .
The relationship of the area is quadratic. It has a max value that is where the vertex of the parabola is. The vertex is the average of the two zeros of the equation. We have
w1 = 0
and
w2 = 10.
1/2 (0 + 10) = 5 feet.
Martha will have largest area garden if (l = w = 5 feet).
A = 5x5 = 25 ft2
Note, if l = 4 and w =6,
A = 4x6 =24 ft2.
Answer:
Step-by-step explanation:
pushups (p)....8 calories every 2 minutes....8/2 = 4 calories per minute
jump rope(j)....10 calories every 2 minutes...10/2 = 5 calories per minute
4p + 5j = 150 <==
Answer:
5000 kilogram/cubic meter
Step-by-step explanation:
The mean of the data is: 67.1
The median is: 70.5
The mode is: 71
<h3>What is the Mean, Median, and Mode of a Data Set?</h3>
- The mean = average
- Mode = data point that appears the most
- Median = center of the data.
Given, 68, 79, 71, 52, 71, 54, 71, 81, 54, 70:
Mean = (68 + 79 + 71 + 52 + 71 + 54 + 71 + 81 + 54 + 70)/10
Mean = 671/10
Mean = 67.1
Median = (70 + 71)/2 = 70.5
Mode = 71
Learn more about the mean, median, and mode on:
brainly.com/question/14532771
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