Answer: -418, 728, 446, -429, 1159, -696
Step-by-step explanation:
1. 
.
2. 
.
3. 
.
4. The sum of 429 and 429 is 
. We need to subtract this from 429, so 
.
5. The sum of 510 and 319 is 
. Subtracting -330, we get 
.
6. Call the unknown number "
". Then 
, so 
. (Think about it.)
Answer:
9x² − 12x + 4
Step-by-step explanation:
A perfect square trinomial:
a² + 2ab +b²= (a + b)²
a² - 2ab +b²= (a - b)²
9x² − 12x + 4 = (3x)² - 2*(3x)*2 + 2² = (3x - 2)²
36b² − 24b + 16
16x² − 24x − 9
4a² − 10a − 25
Answer:
90°
Step-by-step explanation:
Answer:
If your weekly allowance is 5, then for Christmas week your allowance was 15, then your allowance went up by: 5 =3 - 1 = 2 x 100 =200%.
