Answer:
terms: 3 terms, 4e,7e, and 5
like terms: 4e and 7e
coefficients:4e and 7e
constants:5
Step-by-step explanation:
terms are the numbers and or variables being added
like terms consist of the same variables
coefficients are the numbers being multiplied by a variable
constants are any numbers that aren't being multiplied by a variable
Answer:
Right answer is B) x>-10 and x<10
Answer:
6 minutes
Step-by-step explanation:
a=3400t+600 substitute 21000 for a
21000=3400t+600 subtract 600 from both sides
20400=3400t divide by 3400
6=t
A) For both sets A and B, calculating the mean, range, and quartiles are a good way of measuring the center and spread. Using standard deviation may not be the best because we do not know whether the distributions are normal or not.
b) For set A, the lowest value is 63, while the highest is 86. An estimate for the mean, based on the average of these, is 74.5. Most of the 70+ values are below 74.5, so we may guess that the mean will be above the median.
For set B, the lowest is 63, while the maximum is 95. The estimated mean would be 79. But since there are more values on the 80+ and 90+ side, the median is likely to be higher than 79.
c) For set A, the mean is 74.79, while the median is 73, therefore the mean is above the median, and the prediction in part b is correct.
An acre is a surface measure, used in agriculture in several countries.
According to the country and the time, it is equivalent to several surfaces.
We will use the following conversion:
1 acre = 43560 feet ^ 2
Thus:
40 acre = 1,742,400 feet ^ 2
The area of the rectangle is:
1,742,400 = (1,200) * (x)
Clearing the other dimension we have:
x = (1742400) / (1200)
x = 1452 feet
Answer:
He needs 1452 feet of fence.
