Answer:
(2,-1)
Step-by-step explanation:
Multiply first equation by 2:
10x + 2y = 18
Subtract the second equation from this so that the 2y terms cancel:
10x - 3x = 18 - 4
7x = 14
x = 2
Plug into first equation to find y:
5(2) + y = 9
10 + y = 9
y = -1
The answer is (2,-1)
1. Similar: all angles are equivalent.
2. Similar: 2 angles and 1 side are equivalent.
3. Not enough information.
4. Not enough information.
5. Not enough information.
6. False.
7. True.
8. True.
9. True.
10. False.
Step-by-step explanation:
85-83=2
2/85×100
<h3>=2.3%</h3>
Answer:20 packets
Step-by-step explanation: 30,000/ 1500=20
Answer:
Step-by-step explanation:
From the question we are told that:
Sample size 157
Sample mean
Generally the equation for Standard deviation is mathematically given by
Therefore
