(-3i + 4)(3i + 4)
Use the FOIL method
multiply the Firsts: -3i * 3i = -9i² = because i² = -1 ⇒ -9i² = -9(-1) = 9
multiply the Outers: -3i * 4 = -12i
multiply the Inners: 4 * 3i = 12i
multiply the lasts: 4 * 4 = 12
9 - 12i + 12i + 12 = 21
Answer:
1/4+1/4+1/4+1/4+1/4+1/4= 1.5
3/10x2/3= 0.2
2/4x2/3= 0.33333333333 (just put 0.3 with a line on top of the 3)
6 divided by 1/2 = 12/1 or 12
9 divided by 1/3 = 27/1 or 27
2/5 divided by 3/4 = 8/15
1/2 divided by 2/3 = 3/4
Answer:
405 > 375
375 < 405
Step-by-step explanation:
< is less than
> is greater than
Answer:
Option B is correct.
Step-by-step explanation:
300 cm^3 of snow melts into 33 cm^3 water. We need to find how much water is produced if 600 cm^3 of snow is melt.
Solving using unitary method:
300 cm^3 of snow melts into water = 33 cm^3
1 cm^3 of snow melts into water = 33/300
600 cm^3 of snow melts into water = 33/300 *600
= 66 cm^3
So, Option B is correct.
The answer is 50.53
self explanatory.
