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Reil [10]
3 years ago
7

Please explain this in steps please friends​

Mathematics
1 answer:
erastova [34]3 years ago
5 0

Answer:

See below

Step-by-step explanation:

The LHS and RHS are exactly the same, so the equality is true.

The associate property of addition says that

\boxed{a+(b+c)=(a+b)+c}

In order to make the addition of fractions, the denominators should be same. So we can write three fractions as one.

\dfrac{1}{2} +\left(\dfrac{2}{3}+\dfrac{3}{4} \right )

\dfrac{1}{2} +\dfrac{2}{3}+\dfrac{3}{4}

\dfrac{1\cdot 6 }{2\cdot 6} +\dfrac{2 \cdot 4}{3 \cdot 4}+\dfrac{3 \cdot 3 }{4 \cdot 3}

\dfrac{ 6 }{12} +\dfrac{8}{12}+\dfrac{9 }{12}

\dfrac{ 23 }{12}

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plz help me plz Suppose we deposit $2583 in a savings account earning 2.7% per year, compounded annually. Calculate the value of
rjkz [21]

Answer:

$6,563

Step-by-step explanation:

First, place the numbers into the formula A=P(1+r)^n and make the percent into a decimal:

A= 2,583(1+0.027)^35

Solve the equation and you get your answer:

6,562.811525

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8 0
3 years ago
lena finished her assignment in 1/2 hours. then she completed her other assignment in 1/5 hours. what was the total time lena sp
Mekhanik [1.2K]

Answer:

7/10 hours

Step-by-step explanation:

her first assignment took 1/2 hour

her second assignment took 1/5 hour

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so multiply 1/2 by 5/5 to obtain 5/10

multiply 1/5 by 2/2 to obtain 2/10

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4 0
3 years ago
A scatter plot was constructed and a line of best fit was drawn, 25x 80. What is the equation of this best line of fit?
Tcecarenko [31]

Answer:

y = 5x + 25

Explaination:

To get the equation of a line, first get the slope of the line.


Slope = (change in y)/(change in x)


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          = 30/6


            = 5


Now use one point in the line (4,45) and a general point (x,y).


Slope = (change in y)/(change in x)


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    5(x - 4) = (y - 45)


  5x - 20 = y - 45


y = 5x -20 + 45





7 0
3 years ago
A polynomial function whose degree is 5 has at most how many turning points.​
elena-14-01-66 [18.8K]
4


5-1=4!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
5 0
2 years ago
I really need help on this geometry question, please, and thank you.
photoshop1234 [79]

Answer:

250

Step-by-step explanation:

you have to use the fact that the big triangle and the small triangle are similar and write the proportions

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AB= (125*10)/10=125

is AB =125 then AC is duble AC= 2*125=250

7 0
2 years ago
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