Answer: x =3; y = -2

Step-by-step explanation:
8x^4 + 2x^2 - 45 = (2x^2 + 5)(4x^2 - 9) = (2x^2 + 5)(2x + 3)(2x - 3)
(a) 2x^2 + 3....no
(b) 2x^2 + 5...yes
(c) 2x - 3....yes
(d) 4x^2 - 9)...no...not when it is fully factored
Answer:
Step-by-step explanation:
-15+45/2-6
30/-4
15/-2
-15/2
Answer:
Exponential decay model
Step-by-step explanation:
A quick graph shows the remembrance pattern is not linear because the slope is not the same. Therefore a very likely remembrance pattern will be exponentially related.
Answer:
Bianca is paying $22.08
Step-by-step explanation:
If the Shirt Cost 23$ in total, and the seller took 4% off the original price, Which means
4% of 23$ = 0.92 cents, now clearly it says "IT TOOK OFF"
So, now you subtract 0.92 from the original price, to find the new price.
Here the original price is 23$,
23$ - 0.92 = 22.08$, so that means...
Bianca ended up paying $22.08