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egoroff_w [7]
4 years ago
14

The Associative Property applies to which operations? Check all that apply. A. - B. x C. + D.

Mathematics
1 answer:
sdas [7]4 years ago
8 0

The associative property applies to addition and multiplication. The reason is that for both of these operations you are combining numbers to get a total.


With addition, you are putting values together. It would not matter how you grouped these to put them together. The result would be the same.


For multiplication, you are grouping amounts together to get a total. It would not matter how these were grouped, the result would still be the same.



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A

Step-by-step explanation:

Domain here is where arrows begin. So, domain of this function is {4,5,6,8,9}.

Answer : A.

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3 years ago
Please help me on this question
Ierofanga [76]

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6 0
3 years ago
Element X is a radioactive isotope such that every 9 years, its mass decreases by half. Given that the initial mass of a sample
4vir4ik [10]

Answer:

2.9 years

Step-by-step explanation:

Given that :

Half-life t1/2 = 9 years

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t = time taken to reach final amount

Using the exponential half life relation :

A = I(0.5)^t/t1/2

56 = 70(0.5)^t/9

56/70 = 0.5^t/9

0.8 = 0.5^t/9

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−0.096910 = −0.301029 * t/9

t/9 = 0.096910 / 0.301029

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t = 0.3219291 * 9

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5 0
3 years ago
Which expressions are equivalent after simplifying? Check all that apply. (3.1a – 2.7b) + (1.5a – 4.9b) (2.3a + 0.2b) – 8b (–3.5
fomenos

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1st one 3rd one and last kne

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Let f(x)=2x-1 and g(x)=x^2 -3. Find (f o g)(-3)
anzhelika [568]
(f o g)(-3) = (f(g(-3))
Because g is on the inside, we carry out g first.

g(x) = x^2 - 3
Substitute -3 in for x.
g(-3) = (-3)^2 - 3 = 9 - 3 = 6
g(-3) = 6

Next, carry out f on the result of g(-3)
f(6) = 2(6) - 1
      = 12 - 1
      = 11
So the answer is 11.

6 0
3 years ago
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