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ivolga24 [154]
3 years ago
12

HELP PLEASE!!! WORTH 8 points!!!!

Mathematics
1 answer:
vichka [17]3 years ago
7 0
It seem like it's listing the factors and not the roots. If the given factors are x-2, x-(1+sqrt(5)), and x+3i

Then this means that x-(1-sqrt(5)) is another factor. So it looks like choice B is the answer. I'm using the idea that if x-(a+b*sqrt(c)) is a factor then so is x-(a-b*sqrt(c)). 
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Can some one order these from least to greatest 38%,8/25,0.41
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Answer:

Step-by-step explanation:

8/25 38 0.41

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4 years ago
If he eats the sugar cookie that he grabbed the first time and then he grabs another one, what is the probability that both cook
Gnesinka [82]

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It is a 50% chance that both cookies are sugar cookies.

Step-by-step explanation:

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3 years ago
I really need help!!! Some please help me.
vlabodo [156]

Answer:

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Read 2 more answers
In the following diagram line CF is parallel to line CD. Segment DE has a length that is 4 inches greater than the length of CD.
Viefleur [7K]
Answer: CD = 10

Identify the given information. 
FG = 15
GE = 21
FE = 36
CD = x
DE = x + 4

Form your equation. Due to the Side-Splitter Theorem, FG/GE = CD/DE.
15/21 = x/x + 4

Cross-multiply and solve.
15(x + 4) = 21x            Distributive Property
15x + 60 = 21x           Subtract 15x from both sides
60 = 6x                      Divide by 6 to both sides
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7 0
3 years ago
How would you do number 12 and 15?
Gnesinka [82]

Answer:

x_1=x_2=-\dfrac{2}{3}

Step-by-step explanation:

For the quadratic equation ax^2+bx+c=0 the discriminant is defined as

D=b^2-4ac

and the quadratic formula for the roots gives us two roots:

x_1=\dfrac{-b-\sqrt{D}}{2a}

and

x_2=\dfrac{-b+\sqrt{D}}{2a}

For the equation 9x^2 +12x+4=0 use quadratic formula to find roots:

D=12^2-4\cdot 9\cdot 4=144-144=0

So,

x_1=x_2=\dfrac{-12\pm \sqrt{0}}{2\cdot 9}=-\dfrac{12}{18}=-\dfrac{2}{3}

7 0
4 years ago
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