Answer:
Step-by-step explanation:
Add the 2 equations
-7x+8x = 13-14
x=-1
7-y=13
-y = 6
y=-6
4 i believe but i wouldn't bet on this answer
Hi there :-)
The formula of the simple interest is
I=prt
your question ask to find r which is interest rate you do that by dividing each side by (pt) to get
R=I÷pt
Now solve to get the interest rate
R=562.5÷(1,500×5)
R=0.075×100 multiply by 100 to get it as percentage
R=7.5%
Hope it helps:-)
Here my work! Hope this help!
Answer:
(x^2-4)(x^2-1)
Step-by-step explanation:
Here, we want to factorize the given expression
x^4 - 5x^2 + 4
x^4 - x^2-4x^2 + 4
= x ^2(x^2 - 1)-4(x^2-1)
= (x^2-4)( x^2-1)