The basic form of linear function is
y=ax+b
For finding the slope, use the slope formula.
(4-2)/(-2+1)= 2/-1=-2
We first found a which is -2.
Then insert any point to find the value of b. In this case, I will insert (1,-2).
-2=-2+b
b=-2+2=0
The linear graph is y=-2x
Answer:
1. 285 2. 2 795 3. 26 320
Step-by-step explanation:
19
<u>x 15</u>
95
<u> 190</u>
285
To get the 95, multiply 9 x 5, which is 45. Then, carry over the 4 and multiply 1 x 5, which is 5. Add 5 + 4, which is 9, so then you have 95.
To get the 190, you first have to write a 0 in the unit's place because we are working with the tens. Then, you multiply 9 x 1, which is 9. You then multiply
1 x 1, which is 1.
For the final step, you add 95 + 190 = 285 and this is your answer.
Your brother is correct, because the sequence is increasing.
x+(x+2)=116. When simplified 2x+2=116. Now solve 2x=116-2.
2x= 114. Now divide to get x alone by dividing both sides by 2. X= 114÷2= 57. So now 116-57= 59 So, your two number 57 and 59. If you add them will be 116
Answer:
Step-by-step explanation:
![i^{100} - i^{80}=i^{2*50} -i^{2*40}\\\\=(i^{2})^{50}-(i^{2})^{40}\\\\=(-1)^{50}-(-1)^{40}\\\\](https://tex.z-dn.net/?f=i%5E%7B100%7D%20-%20i%5E%7B80%7D%3Di%5E%7B2%2A50%7D%20-i%5E%7B2%2A40%7D%5C%5C%5C%5C%3D%28i%5E%7B2%7D%29%5E%7B50%7D-%28i%5E%7B2%7D%29%5E%7B40%7D%5C%5C%5C%5C%3D%28-1%29%5E%7B50%7D-%28-1%29%5E%7B40%7D%5C%5C%5C%5C)
= 1 - 1
= 0