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ycow [4]
3 years ago
7

Helppppppppppppppppp I give brainlist if answered

Mathematics
1 answer:
labwork [276]3 years ago
5 0
I believe its the first one
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If a is a rational number and b is a rational number, then the product ab must be
alukav5142 [94]
The best way to answer this is to find counterarguments for each answer to eliminate them as a possibility. ab doesn't have to be an integer, 2.5*3=7.5 . That's also not an imaginary number so that's out. And that's also not an irrational number so that's out too. Only choice left is rational number.
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3 years ago
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castortr0y [4]
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The lines stand for absolute value. The expression would then look like:
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3 years ago
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Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh
mafiozo [28]

Answer:

The numbers are -16,-15 and -14

Step-by-step explanation:

Let

x ----> the first number

x+1 ----> the second number

x+2 ---> the third number

we know that

(1/4)x+(1/5)(x+1)=(1/7)(x+2)-5

Multiply by (4*5*7) both sides

35x+28(x+1)=20(x+2)-140*5

35x+28x+28=20x+40-700

43x=-688

x=-16

so

x+1=16+1=-15

x+2=-16+2=-14

The numbers are -16,-15 and -14

5 0
3 years ago
Test the following point in the inequality
boyakko [2]
False it is incorrect
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2 years ago
In geometry you can use deductive rules to
Licemer1 [7]

Answer:

To prove that a given statement or conjuncture is true or false using deductive reasoning.

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