We are looking for k in the equation
(x+4)(x+k/4) = x^2+7x+k
The left hand side expands to:
x^2+(4+k/4)x+k = x^2+7x+k
Comparing coefficients for the linear terms, we have the equation
(4+k/4)=7
Solving for k:
16+k=28
k=12
Thus the number to be subtracted is 15-k=15-12=3
1.5 !!!
Multiply 2/3 by 9/4
Answer:
b is the answer
Step-by-step explanation:
We're going to start with the first one
60m/1 HR
The ratio is already in lowest terms so we found an equivalent ratio by multiplying both terms by 2. So it would be 120 : 2
The next one only has 1 number and that is 1
It is not a form of a ratio because you can't turn a one digit number into a ratio. A ratio has two digits for each side for an example:
This can be turned into a ratio / 19 to 8
This cannot be turned into a ratio/ 8
So there you have it letter b is your answer.
I hope this helps you
Parralellogram Area=base×height
P.A.=12×4
P.A.=48
