3 years ago

What is the answer to this 3-(|-4|-|-5|)

Mathematics

1 answer:

Sholpan [36]3 years ago

7 0

60 because all the negatives would cancel out so all you have to do is multiply the numbers

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The quadratic equation (3k-2)x^2 +12x+3(k+1) =0 has equal roots. Find the two possible values of k.

romanna [79]

$x_1=x_2 \Rightarrow \Delta=0\\
\Delta=12^2-4\cdot(3k-2)\cdot3(k+1)\\
\Delta=144-(36k-24)(k+1)\\
\Delta=144-36k^2-36k+24k+24\\
\Delta=-36k^2-12k+168\\
-36k^2-12k+168=0\\
-3k^2-k+14=0\\
-3k^2+6k-7k+14=0\\
-3k(k-2)-7(k-2)=0\\
-(3k+7)(k-2)=0\\
k=-\frac{7}{3} \vee k=2$

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3 years ago

HELP HURRY PLS Which shows the reflection of the figure over the given line

Lady_Fox [76]

the second one I believe

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4 years ago

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Explain why 16 to the power of 1/2 is equal to 4. Give as much detail as possible. FIRST ONE TO ANSWER GETS BRAINLIEST

svetlana [45]

Answer:

Step-by-step explanation:

16^1/2 = sqrt(16) = 4

4*4 = 16

4 0

2 years ago

Is this a multiple choice question? Or do I have to individually fill in the places that will make a cube? If so what is the bes

GrogVix [38]

Remark

The best way would be to make a duplicate of this page and cut out the shapes. Then find out which ones fold into a cube. It would also be the most time consuming.

The second best way is to imagine how each flat surface would fold to make a cube. I think C would and D would. I don't think the other 2 would.

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3 years ago

-3c-4=2<br> ---------------

Lilit [14]

Answer:

Solution given:

-3c-4=2

add 4 on both side

-3c-4+4=2+4

-3c=6

divide both side by -3

-3c/-3=6/-3

c=-2

7 0

3 years ago

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