i)
Pythagorean's theorem: √50
j)
Pythagorean's theorem: √1/2
The value of 18x + 9∆x - 7 based on the limit given will be 18x - 7.
<h3>How to calculate the value?</h3>
From the information given, it should be noted that we simply want to calculate the value of x.
This will be:
18x + 9∆x - 7
It was stated that ∆x = 0
Therefore, we'll put this into the equation.
This will be:
18x + 9∆x - 7
= 18x + 9(0) - 7
= 18x -7
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Find how much 1 box costs by dividing.
9 ÷ 5 = 1.80
Now, multiply 1.80 by 20.
1.80 × 20 = 36
<h2>Answer:</h2>
<u>20 boxes of cookies costs </u><u>$36</u><u>.</u>
Answer:
the answer is
-x-8y=8
or, x + 8y= -8
Step-by-step explanation:
4x - 6y = 13 - (5x + 2y = 5)
or, 4x - 6y = 13
- 5x - 2y = -5
-------------------------
- x - 8y = 8