Answer:
5.5
Step-by-step explanation:
that is the answer....
Answer:
The system of equations is
Step-by-step explanation:
Let
x ----> the number of minutes of calling time
y ----> the monthly cost of the calling plan
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-intercept
In this problem
Plan A
substitute
----> equation A
Plan B
substitute
----> equation B
therefore
The system of equations is
& so , .
<u>Step-by-step explanation:</u>
Here we have , ab= 8 & a^2+b^2=16 i.e. and .
We need to find value of (a+b)^2 i.e. :
It's and identity and we know that
⇒
⇒
⇒
⇒
⇒
∴ & so , .
Answer E: 7
Answer D: 4.3
Explanation:
To find the length just divide 10 1/2ft by 1 1/2ft. To find the width divide 6 1/2ft by 1 1/2ft
Answer:
In quadrant 1
Step-by-step explanation:
Quadrant 1 is (positive, positive) which falls in the category (10,25)