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Citrus2011 [14]
3 years ago
7

Please help! really rusty on properties ^-^

Mathematics
1 answer:
marta [7]3 years ago
4 0
A is additive equality, where -x and x adds to 0
b is distributive, where x(y+z)=xy+xz
c is multiplicative equality, where x*1=x
d is subtracting both sides by 3.
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Two numbers that multiply to 120 and add to 29
Veseljchak [2.6K]
10*12=120+29=149 hoped i helped
8 0
3 years ago
Not sure how to do the write in long form.
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1. 100000
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5 0
3 years ago
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Ines has saved $5. She doubles the amount she saves each week. Does the function have a constant difference or a constant ratio?
salantis [7]

Answer:

The function have a constant ratio

No, it does not represent an exponential function.

Step-by-step explanation:

As given,

Ines has saved $5. She doubles the amount she saves each week.

⇒ In first week she saved = $5

   In second week she saved = 2×$5 = $10

   In third week she saved = 2×$10 = 20

  In fourth week she saved = 2×$20 = 40

and so on..

∴ we get the series

5, 10, 20, 40 ,.......

If the series is given as a, b, c, d, ..... , then

The common difference is defined as d = b-a = c-b

The common ration is defined as r = \frac{b}{a} = \frac{c}{b}

Here, in the given question

The series is - 5, 10, 20, 40

This has no common difference , d =   10 - 5 (= 5 )≠ 20 - 10 (= 10)

As 5 ≠ 10

So the function does not define common difference .

Now,

This has common ratio , r =  \frac{10}{5} (=2) = \frac{20}{10}(=2)

As 2 = 2

So, the function represent common ratio

Now,

The function does not represent an exponential function because it is increased by common ratio.

7 0
3 years ago
Is the relation a function? Why?
Anvisha [2.4K]

No! 11, the input, has two outputs which makes it not a function! :)

7 0
3 years ago
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The temperature on a winter night was -23 °F. The temperature rose by 5 °F when the sun came up. When the sun set again, the tem
trapecia [35]
I'm pretty sure the answer is -35 ......... I hope it helps
6 0
3 years ago
Read 2 more answers
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