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Ray Of Light [21]
2 years ago
8

Explain, in words, how you can identify a perfect square trinomial whose leading coefficient is 1

Mathematics
1 answer:
liberstina [14]2 years ago
4 0
When the leading coefficient is 1,
If the constant ( c term) is a perfect square and the b term is 2* the square root of the c term.
Ex.
x*2 + 10x + 25
2*5 = 10 5*5=25
Ex.
x^2 - 12x + 36
2 * -6 = -12 6*6=36
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guapka [62]

Answer:

x= 5

Step-by-step explanation:

first we open brackets

12x-8=52

then transpose

12x= 52+8

12x= 60

x= 60/12

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3 years ago
Why is it important to line up the decimal points?
jolli1 [7]
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A software company is releasing one of their products on a CD. The manufacturer charges a $9700 setup fee and $1.25 per CD. Appr
Gre4nikov [31]

Answer:

  about 4312

Step-by-step explanation:

You want the total cost for n CDs to be 3.50n.

The manufacturer will charge you 9700+1.25n, so you want these to be equal:

  3.50n = 9700 +1.25n

  2.25n = 9700 . . . . . . . . subtract 1.25n

  n = 9700/2.25 ≈ 4311.111...

Producing 4312 CDs will make the cost per CD slightly less than $3.50.

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Producing 4311 CDs will make the cost per CD be about $3.500058. Producing 4312 CDs will bring it down to $3.499536.

3 0
3 years ago
Subtract x + 6 from −3x − 4.<br> A) −4x − 10 <br> B) 4x + 10 <br> C) −2x + 2 <br> D) −x + 10
Yuliya22 [10]
The correct answer will be -4x - 10 which is A. X subtracts to the other side and makes it -4x, then 6 +-4 = -10
3 0
3 years ago
Proof 1<br> Given: AB║CD , AD║CB<br> Prove: ΔABC ≅ΔCDA
lys-0071 [83]

<u>Statement                                                  Reason                                             </u>

AB║CD , AD║CB                                      Given

m∠BAC = m∠ACD                                     Alternate Interior Angles

m∠ACB = m∠CAD                                     Alternate Interior Angles

AC = AC                                                      Reflexive Property of Equality

ΔABC ≅ΔCDA                                            ASA ≅

7 0
3 years ago
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