THIS IS A RIGHT & isosceles triangle: A = 90. B = 45 THEN ANGLE C =45
THEN AB = AC = 4√2
APPLY PYTHAGORAS: BC² =AB² + AC²
===> X² = (4√2)² + (4√2)² ==>16.2 +16.2 = 64
X² 64 & X =√64 ==> X = 8
Answer:
1. 7
2. 4
3. -12
4. 5
5. -1
6. -1
7. -7
8. 4
hope this helped :-)
Step-by-step explanation:
Answer:
less
Step-by-step explanation:
We assume price of a shirt is $100.
Initially price is <u>increased</u> by 10%: 100+10=110
Then it is <u>reduced</u> by 10%: 110-11=99
Now price of a shirt is $99.
Answer is price of a shirt is less than it was at the start.