It's asking you to find the derivative, which is -0.06x+1.8, and then, when it equals zero, it has reached the top. that is, -0.06x+1.8=0, or x= 30. plug that into the original formula, and you get -0.03(30)²+1.8(30)-24, or 3. the answer is 3 (inches, presumably)
Answer:
x=7
y=-1
Step-by-step explanation:
When the two equations are solved together, they form simultaneous equations.
x+y=6
x-y=8
Let us use the elimination method. if we add the two equations, we eliminate y.
2x=14
x=7
Let us substitute for the value of x obtained above.
x-y=8
7-y=8
y=7-8
y=-1
Answer:
I think it is B
Step-by-step explanation:
8n-3n=n(8-3)=n(5)=5n=5 times n
5 is a factor of 5n so it is evenly divisible by 5
and since n is a natural number, it is the multiplier to make multipules of 5
The number of seats in each row is an illustration of mathematical expressions.
- <em>The numerical expression for the number of seats in each row is: </em>
<em /> - <em>The number of seats in each row would be 6</em>
The given parameters are:



So, the remaining seat is calculated as:

Substitute known values

The number of seat in each row is calculated as:

Substitute known values

Hence, the numerical expression for the number of seats in each row is:

When the expression is solved, the number of seats in each row would be 6
Read more about numerical expressions at:
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