Answer: 15x^2+6x-20
Step-by-step explanation:
use symbolab.com for calculator and further steps
d/dx (5x+3)5
((x-2)(x+2))=2x
5(x-2)(x+2)+2x(5x+3)
15x^2=6x-20
Answer:
34 cm
Step-by-step explanation:
The actual question is How many inches of ribbon Peter will need to make the "X".
Using the Pythagorean theorem, the length of the diagonal of a square with 12 cm sides is:

Since the "X" requires two diagonals, the length of ribbon required is:

The length required, rounded to the nearest centimeter, is 34 cm.
Answer:
550 should be correct
Step-by-step explanation:
do 22 times 25
Answer: 8 pizzas.
Step-by-step explanation:
4/5 of 10 is 8. You can multiply 4/5 X 10 to get 8. Therefore, 8 pizzas were eaten.
Can you please send me a picture?