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nasty-shy [4]
3 years ago
11

I need help with this question.

Mathematics
2 answers:
Alexandra [31]3 years ago
8 0
The answer is F(3)= -10

Wittaler [7]3 years ago
7 0
According to my calculations I got -10
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25%

Step-by-step explanation:

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3 years ago
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The sum of a number and its square is 182. Find the number.
Mars2501 [29]

Answer:

13 and -14 satisfy this condition

Step-by-step explanation:

Let's represent that number as x

and the square of x is x^2

So,

x + x^2 = 182

Subtract 182 from both sides

x + x^2 - 182 = 182 - 182

x + x^2 - 182 = 0

rearrange the quadratic equation

x^2 + x -182 = 0

let's use the quadratic formula

\frac{-b+\sqrt{b^2-4ac} }{2a}       or      \frac{-b-\sqrt{b^2-4ac} }{2a}

a = 1, b = 1, c = -182

\frac{-1+\sqrt{1^2-4*1*(-182)} }{2*1}       or     \frac{-1-\sqrt{1^2-4*1*(-182)} }{2*1}

\frac{-1+\sqrt{1+728} }{2}      or         \frac{-1-\sqrt{1+728} }{2}

\frac{-1+\sqrt{729} }{2}            or    \frac{-1-\sqrt{729} }{2}

\frac{-1+{27} }{2}     or    \frac{-1-{27} }{2}

\frac{26}{2}     or    \frac{-28}{2}

13 or    - 14

Lets check

13 + 13^2 = 13 + 169

= 182

Also,

-14 + (-14^2) = -14 + 196

= 182

8 0
3 years ago
H3LP ME PLEASE!!!!!!!!!!!!!!!!!!!!!! NOW I BEG ITS BEEN DAYS
Gnoma [55]

I know this doesn't help but i'm on the same thing and i just don't know

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Which expression is equal to -0.4(3/2-1/4)?
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I believe it’s c but I could be wrong
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Please help me I’ll mark you as brainliest! Answer quickly pleaseee
Scrat [10]

Answer:

i need the triangle

Step-by-step explanation:

the question is incomplete... show the diagram of the triangle

we can't solve without that

5 0
3 years ago
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