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Andru [333]
3 years ago
9

PLS HELP MEEEI NEED ANSWERS ASAP ASAP

Mathematics
1 answer:
Brums [2.3K]3 years ago
6 0

Answer:

Associative.

Step-by-step explanation:

In addition and multiplication, it does not matter which two numbers you put together first. On the left aide 6 is associated with 3. On the right side 3 is grouped with 7.  It doesn't matter where 3 goes. You still get the same answer.

(6 + 3) + 7 = 6 + (3 + 7)

   9    +  7   =  6  + 10

        16  =  16

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taurus [48]
Rest are 19/36

it is 1 -(1/4) - (2/9)
= 1-9/36 - 8/36
= (36-9-8)/36
= 19/36.
3 0
3 years ago
Someone help me please thanks
Svet_ta [14]
About 6 ;) ............
8 0
3 years ago
Suppose Johnny invests $41,745 into an account, which has been earning interest for many years and he now has a total of $39,974
Dmitriy789 [7]

Answer:

A negative number would be reasonable in the solution of the rate of the investment. It would be reasonable because Johnny started out with $41,745 in his account and ended up with $39,974 which means that the rate has to be negative.


please rate and thank : )


7 0
3 years ago
so yes i'm re-posting this same question since last time no one answered it for me so this time somebody please help me out :(​
alexandr402 [8]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
A countrys population in 1990 was 145 million. In 1998 it was 151 million. Estimate the population in 2015 using the exponential
alexandr402 [8]

Answer:

The population in 2015 will be 165 million.

Step-by-step explanation:

The exponential growth formula is given by:

f(t) = a(1 + r)^{\Delta t}

Where:

a: is the initial population

r: is the rate of increase

Δt: is the time        

With the initial information we can find the rate:

151 = 145(1 + r)^{1998-1990}      

Using logarithm:                                    

ln(151) = ln(145) + 8[ln(1 + r)]  

ln(1 + r) = \frac{ln(151) - ln(145)}{8}                        

ln(1 + r) = 5.0683 \cdot 10^{-3}          

Using exponential:          

e^{ln(1 + r)} = e^{5.0683 \cdot 10^{-3}}

r = 5.081 \cdot 10^{-3}        

Now, we can find the estimated population in 2015:

f(t) = 151(1 + 5.081 \cdot 10^{-3})^{2015-1998}              

f(t) = 165              

Therefore, the population in 2015 will be 165 million.

I hope it helps you!

5 0
3 years ago
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