there are 6 people in a raffle drawing. two raffle winners each wing gift cards . each gift card is the same. how many ways are
1 answer:
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<u>Answer:</u>
2
<u>Step-by-step explanation:</u>
• Multiplying two numbers with same bases is the same as adding their powers:
∴
⇒
⇒
• Dividing two numbers with same bases is the same as subtracting their powers:
∴
⇒
⇒
⇒
• Raising anything to the power of is the same as square-rooting it:
∴
⇒
⇒ 2
Answer:
y = 8
x = 9
Step-by-step explanation:
given equation,
x + y = 17 ........(1)
9 x - y = 73...........(2)
writing in matrix form
A X = B
using augamented matrix A|B
using row transformation
R₂ = R₂ - 9 R₁
now,
now
-10 y = -80
y = 8
and
x + y = 17
x = 17 -8
x =9