-(2m-7)-(3+4(m+4)) Solve PLZZZZ HURRYY 20 POINTS
Answers
Answer:
-6m-12
Step-by-step explanation:
-(2m-7)-(3+4(m+4)) =
-2m+7-(3+4m+16)=
-2m+7-(19+4m)
-2m+7-19-4m
-6m-12
OR:
-m-2 ( if you divide by 6 as a common factor)
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1. It cannot be a fraction or decimal because the depth of the well is a whole number.
2.It must be a positive number since it represents a number of hours.
3. It must be a negative number because the depth is below sea level.
4.It cannot be greater than –72 because that is the depth of the well.
Answers
Answer:
Option B is correct
It must be a positive number since it represents a number of hours.
Step-by-step explanation:
As per the statement:
Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level.
Given the equation as:
Using distributive property,
Combine like terms;
Subtract 40 from both sides we have;
Divide both sides by -8 we have;
h = 14 hours
Therefore, the statement is true about Pieter’s solution is, It must be a positive number since it represents a number of hours.
the answer is B It must be a positive number since it represents a number of hours.
–0.67
0.48
0.79
Answers
The r-value that represents the strongest correlation is (a) - 0.83
How to determine the strongest correlation?
The correlation coefficient has its value to be from -1 to 1
The closer the value to 1 or -1, the stronger the correlation
-0.83 is closer to -1 than the other values closer to 1 or -1
Hence, the r-value that represents the strongest correlation is (a) - 0.83
Read more about correlation at:
#SPJ5
Answer:
–0.83
Step-by-step explanation:
In regression analysis, the coefficient of correlation is a statistic which indicates an association between the independent variables and the dependent variable. The coefficient of correlation is represented by "r" and it has a range of -1 to 1. The nearer the r-value to -1 or 1 the better the correlation.
Answers
2005 would be the most sufficient date to use this model for.
Explanation:
The model is using a short amount of time as its basis, we would not want to go too far into the future.
It would likely be less and less accurate the later we go. We also can't use 1950 because the function looks for years after 2000.
Answer:
the answer is B
Step-by-step explanation:
Answer:
2005 would be the most sufficient date to use this model for.
Explanation:
The model is using a short amount of time as its basis, we would not want to go too far into the future.
It would likely be less and less accurate the later we go. We also can't use 1950 because the function looks for years after 2000.
Answers
Answer:
The third answer choice
Step-by-step explanation:
So sqrt(5)-sqrt(9*5) or sqrt(5)-3sqrt(5). We can rewrite this as -2sqrt5.
Answers
Answer: x = 28, y = 47
**Remember, these are just the values of the variables, not the angle measures. In order to find the angle measures, you need to plug these in. **
Step-by-step explanation:
Finding x
40+5x=180
Subtract 40 from both sides --> 5x=140
Divide by 5 --> x=28
In order to find y, you need the angle to the left of the 40 degrees. (180-40) which is 140. Because the (3y-1) and 140 are across from one another, they are equal, so we set them equal, then get y alone.
3y-1 = 140
(add 1 to both sides) 3y = 141
(divide by 3) y = 47