It is easier to multiply. For example: 63 multiply by 7
63 x 7 = (60+3) x 7 = 60 x 7 + 3 x 7 = 420 + 21 = 441
Another example : 25 x 73
25 x 73 = (20+5) x (70+3) = 20 x 70 + 20x3 + 5x70 + 5x3
= 1400 + 60 + 350 + 15 = 1875
Y = 2x + 4 and y = 3x + 1
Therefore, 2x + 4 = 3x + 1
This is kinda hard to explain but i'll try.
First off, don't do online school.
Second, don't look up answers.
The gcf of the first two terms is 3g^2 and the gcf of the second two terms is 5
3g^2(g + 2) + 5(g + 2)
Answer:
Step-by-step explanation:
We can easily determine the exact value of this unknown angle by breaking it into known angles that can add together to give up 105. For example, 105 degrees is 60 + 45, both of which are found on the unit circle. We ill also use the trig identity for the sum of the cos of 2 angles which is:
These values are found on the units circle, so make sure you have one handy. Those values fill in as follows:
which simplifies to
