Surface area of the the rectangles:
8 * 5 + 8 * 4 + 8 * 3 = 96
Surface area of the two triangles:
Use bh/2 base time height over 2
(4 * 3)/2 = 6
There are 2 triangles, 2 * 6 = 12
12 + 96 = 108
Answer:
44?.. im going to get rhis one wrong
To add x/2 and x/5 together, we note that the least common denominator between 2 and 5 is 10. Using this fact, we can turn x/2 into the equivalent fraction 5x/10, and x/5 into 2x/10. Adding the two together gets us
5x/10 + 2x/10 = 7x/10
Now, our equation reads
7x/10 = 5/4
Cross multiplying, this equation implies that
7x(4) = 10(5), or
28x = 50.
Dividing either side by 28, we find that
x = 50/28 = 25/14
To verify this, we can substitute this value in for x in the original equation to get
(25/14)/2 + (25/14)/5
For the first term, half of 1/14 is 1/28, so half of 25/14 should give us 25/28. For the second, 1/5 of 25 is 5, so 1/5 of 25/14 is appropriately 5/14, or 10/28.
25/28 + 10/28 = 35/28, and since 35 and 28 have a common factor of 7 (35 = 7 x 5, 28 = 7 x 4), we can reduce 35/28 to 5/4, showing that our answer checks out.
I️ really think blue because honestly I️ don’t know
Given that the mean is 55 inches and Dave is 57 inches, he would have increased the mean of the height in the stem-and-leaf plot that the students were making. This is however is also dependent upon the central tendency that was used, in this case the central tendency is mean or average.
