Answer:
gskshssggsgdgdffdgdggggdhedgggdffege00827273646r646366728811993373us is answer 1000000%weong
The right answers are
1. C, 1
2. B, an+1 = an x 3, a1 =5
3. C, an = -6 x 0.5^n-1
4. D, an + 2/3 x (1/2)^n-1
5. D, an+1 = an x (-2), a1 = 5
I just took the test and got 100% so these should be correct
Go with what u think will help u
Let's call the three numbers x, y, and z.
The numbers are 3, 12, and 5.
x + y + z = 20
y = 4x
x + z = 8
We can rewrite the first equation because y is 4x, so
x + 4x + z = 20
5x + z = 20
And now we can use simultaneous equation rules to solve
5x + z = 20
x + z = 8
5x + z = 20
5x + 5z = 40
(subtract)
-4z + -20
÷ -4
z = 5
x + z = 8
x + 5 = 8
x = 3
y = 4x
y = 4 × 3
y = 12
I hope this helps!
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