Is there supposed to be a negative by the 6
Answer:
f(x)=4x+7
Step-by-step explanation:
f(x)=4x+7
so that is the answer to the questions
The correct question is:
Using the digits 1 to 9 at most one time each place a digit in each box to create an equation where x is a negative value solve your equation to prove your answer.
__x + __ = __
Answer:
1. 9x + 8 = 1
2. 7x + 6 = 2
3. 5x + 4 = 3
Step-by-step explanation:
1. 9x + 8 = 1
Subtract 8 from both sides
9x = 1 - 8
9x = -7
Divide both sides by 9
x = -7/9
2. 7x + 6 = 2
Subtract 6 from both sides
7x = 2 - 6
7x = -4
Divide both sides by 7
x = -4/7
3. 5x + 4 = 3
Subtract 4 from both sides
5x = 3 - 4
5x = -1
Divide both sides by 5
x = -1/5
The maximum number of miles that Gabrielle can drive is 134 miles.
<h3>What is the maximum number of miles she can drive?</h3>
The total miles she can drive is a function of the money she has, the cost per mile and the cost to rent the car.
The equation that can be used to show this relationship is :
Number of miles = (amount she has - cost of renting) / cost per mile
($40 - $19.95) / 0.15 = 134 miles
To learn more about costs, please check: brainly.com/question/25879561
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In matrix form, this is

The coefficient matrix has determinant

so it has an inverse, which is

Multiply both sides by the inverse matrix:


so that
and
.