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BlackZzzverrR [31]
3 years ago
8

Simplify ) () 3 07 6 21 21 6

Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

what am I simplifying exactly

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What is the value of the expression below when w = 3. 4w^2 - 7w - 8
Makovka662 [10]
<h2>Answer:<em> </em><em><u>w =(-40-√4320)/-34=(20+6√ 30 )/17= 3.110 </u></em></h2><h2><em><u> w =(-40+√4320)/-34=(20-6√ 30 )/17= -0.757</u></em></h2>

Step-by-step explanation:  The prime factorization of  4320   is

  2•2•2•2•2•3•3•3•5  

To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 4320   =  √ 2•2•2•2•2•3•3•3•5   =2•2•3•√ 30   =

               ±  12 • √ 30

 √ 30   , rounded to 4 decimal digits, is   5.4772

So now we are looking at:

          w  =  ( -40 ± 12 •  5.477 ) / -34

Two real solutions:

w =(-40+√4320)/-34=(20-6√ 30 )/17= -0.757

or:

w =(-40-√4320)/-34=(20+6√ 30 )/17= 3.110

MY HEAD HURTS!

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3 years ago
I need help with ratios.
ra1l [238]
Me toooo! if anyone in these comments could answer my question, that'd be awesome!
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3 years ago
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Can you please help me? Thanks!!!!
ss7ja [257]
The answer is 25 degrees.

This is how you solve the equation, first you must know that the straight like ABC=180, DBC is 130, so the remaining amount is 50 degrees, BE is a bisector of ABD which means it splits ABD right down the middle. So ABE+EBD=50 degrees, 25+25=50 since both sides MUST be equal in order for BE to be a bisector of ABD.

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3 years ago
john's parents deposited $1000 into a savings account as a college fund when he was born.how much will john have in this account
Nookie1986 [14]
3.25 x 18 = 58.50
1000 - 58.50 = 941.50

Answer is 941.5
6 0
3 years ago
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48/13 as a decimal rounded to the nearest tenth
nexus9112 [7]

Answer:

3.7

Round 5 up

7 0
3 years ago
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