Answer:
0.0072
Step-by-step explanation:
=7.2 × 10^-3
=7.2 × 10/10000
=7.2 ×1/1000
=0.0072
Answer:
y = (x -
)² - ![\frac{25}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B4%7D)
Step-by-step explanation:
Given
y = (x + 2)(x - 3) ← expand factors
= x² - x - 6
Use the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² - x
y = x² + 2(-
) x +
-
- 6
= (x -
)² - ![\frac{25}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B4%7D)
Answer:
2561
Step-by-step explanation:
3+5=8
8 to the 3rd power= 512
512 times 5= 2560
2560+1= 2561