6 + (2 - 3 (4) )+1 / (5) (2) - 4 = -1 /2
<u>Step-by-step explanation:</u>
6 + (2 - 3 (4) )+1 / (5) (2) - 4
Using the BODMAS rule, we can simplify the expression in the following way, like, we have to do the operation inside the brackets first, then division, multiplication, addition and then subtraction.
= 6 + (2 - 3 (4) )+1 / (5) (2) - 4 [operation inside the brackets]
= 6 + (2 - 12) )+1 / (5) (2) - 4
= 6 + (-10) )+1 / (10) - 4
= 6 + 1 -10 / (10) - 4
= 7 - 10/ 6
= -3 / 6
= -1/2
Answer:
We can have two cases.
A quadratic function where the leading coefficient is larger than zero, in this case the arms of the graph will open up, and it will continue forever, so the maximum in this case is infinite.
A quadratic function where the leading coefficient is negative. In this case the arms of the graph will open down, then the maximum of the quadratic function coincides with the vertex of the function.
Where for a generic function:
y(x) = a*x^2 + b*x + c
The vertex is at:
x = -a/2b
and the maximum value is:
y(-a/2b)
Answer:
x = 
Step-by-step explanation:
Given,
Squaring on both L.H.S. and R.H.S.
By expanding L.H.S. we get x² + 49
By expanding R.H.S. we get x² + 10x + 25
x² + 49 = x² + 10x + 25
x² will be subtracted:
49 = 10x + 25
Variables are to be arranged:
10x = 49 - 25
10x = 24
x = 
∴ x =
The answer is 338. It is simple addition
Answer:
y=4,5
Step-by-step explanation:
Anything inside an absolute value will become postive.
So, 2y-9 can be -1 because the absolute value of -1 is 1.
Knowing this,
2y-9 = 1
or
2y-9 = -1
2y-9=1
2y=10
y=5
and
2y-9=-1
2y=8
y=4
y=4,5
