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stiv31 [10]
3 years ago
11

Absolute Value Equation | -4 + 5x |= 16 Please show how to do the problem.

Mathematics
1 answer:
Gemiola [76]3 years ago
4 0
If you have |a|=b, solve a=b and a=-b

so
|-4+5x|=16
so solve
-4+5x=16 and -4+5x=-16
add 4 to both sides
5x=20 and 5x=-12
divide both sides by 5
x=4 and x=-12/5

the 2 solutions are x=-12/5 and x=4
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The Answer is (A)

Step-by-step explanation:

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6 0
2 years ago
Please solve 7(b+2) = 49
Inessa05 [86]

Answer: b=5

Step-by-step explanation:

7(b+2)=49

7b + 14= 49

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7b= 35

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4 0
3 years ago
Read 2 more answers
b. Interpret the Rsquared value. Does the multiple regression equation help us predict the total golf score much better than we
Veseljchak [2.6K]

Answer:

Depending upon the golf score predictors we can conclude the answer from given Conditional statements

If Someone want Total golf score better then, following .condition

Yes, Because R squared is close to 1 .  ....(If Regression values are prefect to fit with model then only)

<em>(But the data is not sufficient to say 100%, it depends on score given)</em>

Step-by-step explanation:

Given :

Explanatory Question on r-squared in regression.

To Find :

Does regression equation help us to know total golf score much better.

Solution;

As  in Question there is no golf score given so we cant see "yes" or "no".

But we can be conditional here ,

1) If golf score to be accurate then , multiple regression predict points should fit the model prefect ,hence the R squared value "<em>must be close to 1</em>" .

2) If gold score is not accurate then multiple regression   suggest that model does  not explain any variables, no linear relationship.

then r squared value <em>"must not be close to 1".</em>

Depending upon the golf score predictors we can conclude the answer from given Conditional statements.

that  Yes, Because R squared is close to 1 .

7 0
3 years ago
EXTRA POINTS---Set up an equation and find the value of x.
mars1129 [50]

Answer:

13) x = 30

14) x = 22.5

15) x = 36

Step-by-step explanation:

13) 4x+2x = 180

6x = 180

x = 30

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8x = 180

x = 22.5

15) 2x+3x+2x+3x = 360

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8 0
3 years ago
Read 2 more answers
NEED HELP PLEASE!!!!!
Ghella [55]
1)  14/20=21/25+x
      x=5
6 0
2 years ago
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