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algol [13]
2 years ago
15

How to multiply 21 x 25 in oldschool way

Mathematics
1 answer:
VladimirAG [237]2 years ago
8 0
Use a calculator i don't know
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This is too much for me <br> if you know please answer
SOVA2 [1]

Answer:

-4x + y + 6z

Step-by-step explanation:

Combine like terms (Terms with the same variable):

(2x + 5y - z) + (-6x - 4y + 7z)

Add straight across:

2x - 6x = -4x

5y - 4y = y

-z + 7z = 7z - z = 6z

-4x + y + 6z is your answer.

~

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3 years ago
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TEA [102]
<span>ratio of their perimeters and the ratio of their areas would be </span>5:9 and 25:81
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3 years ago
Which of these is a geometric sequence?
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C is a geometric sequence. the terms share a ratio of 5 
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3 years ago
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Carmen represents the equation y=x^2+1 using a graph. She says her graph shows there is more than one input for almost every out
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No - It is a function.


A relation which is not a function has more than 1 output for an input.

7 0
3 years ago
For every watch that Sarah sells, she earns $4. She gets an additional bonus of $50 for every 25 watches she sells. Last month,
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89

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