The correct quadratic equation;
x2+7x-2=0
Working
Assuming the frame has a uniform thickness;
Then length of mirror and frame is 3+x and width 2+x
The area of mirror and frame area;
A=L*W
8=(3+x)(2+x)
8=(6+5x+x2)
Taking 8 to the Right hand side, we have:
x2+5x-2 =0
Or, is it asking you to subtract the? In that case
5/4 - 3/8 = 7/8
Answer:
im pretty sure its 30
Step-by-step explanation:
Answer:
A rational number is part of a whole expressed as a fraction, decimal or a percentage. ... Alternatively, an irrational number is any number that is not rational. It is a number that cannot be written as a ratio of two integers (or cannot be expressed as a fraction).
hope this helps
Step-by-step explanation:
Answer:
$500
Step-by-step explanation:
find the ratio
875/700=5/4
apply the ratio
5/4*400=500
