Answer:
900.
Step-by-step explanation:
1) the initial area is: A₀=0.5*base*h;
2) the final area is: A=0.5*(5*base)*(5*h).
It means, that 25A₀=A, then A=900 [cm²].
QUESTION 1
The given binomial is;
First terms are multiplied:
Outside terms are multiplied:
Inside terms are multiplied:
Last terms are Multiplied:
This gives us;
QUESTION 2
We want to factor
The HCF is
We factor to get;
QUESTION 3;
Split the middle term;
Factor
The solutions are;
and
These are the x-intercepts of the graph of the function
Answer:
x=5±√−103/8
Step-by-step explanation:
There's no real solutions
4x2−3x+9−(2x+1)=2x+1−(2x+1)
4x2−5x+8=0
x=−b±√b2−4ac/2a
x=−(−5)±√(−5)2−4(4)(8)/2(4)
x=5±√−103/8