Graph will look like this if this is one of the options
So 2d^2 and -2d^2 cancel each other out and then that leaves
3a-14+6a-4d collect like terms
9a-14-4d
And that’s the answer
So triangles degrees always adds until 180.
so if two angles add to more than 90 then the last angle is less than 90
there are three types of triangles
Right Triangle = one angle is 90 degrees
Acute = all angles less than 90 degrees
Obtuse = One angle is greater than 90 degrees
so this triangles must be acute
the answer is B
Answer:
5 months
ROI = 3.75 %
Step-by-step explanation:
Since,
The simple interest formula,

Where,
P = Principal amount,
r = rate per period ( in decimal )
t = number of periods,
Here, P = 800, r = 9% = 0.09,
If A is the future amount,
We have, A = 830
I = A - P = 830 - 800 = 30
By substituting the values in the above formula,



Hence, it will take 5 months. ( 1 year = 12 months )
Now,


