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kramer
3 years ago
8

Solve x2 + 10x = −21.

Mathematics
1 answer:
Mila [183]3 years ago
8 0
B is your answer. Hope this helps :)
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cate and elena were playing a card game the stack of cards in the middle had 24 cards in it to begin wiht. Cate added 8 cards to
Kaylis [27]
24+8 = 30

30 - 12 = 18

18-9 = 8

There are 8 cards left in the stack
7 0
3 years ago
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If (x+2),3x and (4x+1)are in AP find the value of x
Gala2k [10]

Answer:

<u>x</u><u> </u><u>is</u><u> </u><u>3</u>

Step-by-step explanation:

{ \bf{U _{2} - U _{1} = U _{3} -U _{2}  }}

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3 years ago
Is 15 kilometers equivalent to 1,500,000 centimeters
Ann [662]
Hi
Yes 15 kilometers is 1500000 cm

This is because in metric conversion, you multiply by ten each time you convert to the next unit.

Heres a useful way to remember

K ing (kilo)
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6 0
3 years ago
PLEASE HELP!!!!!!
slava [35]

9514 1404 393

Answer:

  A: (3x +4)

  B: (4x +5y) × (4x -5y)

Step-by-step explanation:

<u>Part A</u>:

Since we know the trinomial is a perfect square, we know the terms of each binomial factor are the square roots of the first and last terms of the trinomial.

  9x² +24x +16 = (√(9x²) +√16)² = (3x +4)²

The side of the square is 3x+4.

__

<u>Part B</u>:

The difference of squares is factored like this:

  a²-b² = (a +b)(a -b)

The given area expression is the difference of squares with ...

  a = 4x, b = 5y

so, the factorization is ...

  16x² -25y² = (4x +5y)(4x -5y)

The dimensions of the rectangle are (4x+5y) by (4x-5y).

3 0
3 years ago
Is it correct in adding subtracting?? Answer is in the picture please give me answer soon​
MrRissso [65]

Answer:

8/24 is correct. However, I would simplify 8/24 down to 1/3, since most teachers want you to do that.

3 0
2 years ago
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