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Romashka-Z-Leto [24]

3 years ago

15

How many terms are in the expansion (a+b)19

1 answer:

astra-53 [7]3 years ago

8 0

Answer:

There are 2 ters because you would distribute the 19 to the a and the b to make it 19a + 19b, which has 2 terms

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The variables x and y vary inversely. When y is 10, x is 10. What is x when y is 20

dezoksy [38]

<span>inversely
y = k/x
k = yx
k = 10*10 = 100

when y = 20

20 = 100/x
20x = 100
x = 5

answer
</span><span> x = 5 when y is 20</span>

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