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cricket20 [7]
3 years ago
12

Can you please help me with this l will give you Brainliest.​

Mathematics
2 answers:
nydimaria [60]3 years ago
6 0

The value of a number increases when its subtracted by a negative. In the expression 5 - -4, since 4 is a negative integer that’s being subtracted, it’s added to the 5 — which would equal 9.

VARVARA [1.3K]3 years ago
3 0

Answer:

9

Step-by-step explanation:

Hello

When you have two negative symbols, you have to multiplied them, so:

-*-= +

+*+= +

+*-=-

-*+ = -

You can to do more research lookin this: "Algebraic operations with symbols" or "The sign´s law"

I attached a illustrative image about this.

Then,

5 - (-4)   <em>(here is with -*- )</em>

5 + 4

9

Best regards

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Answer:

Class Boundary = 1 between the sixth and seventh classes.

Step-by-step explanation:

              Lengths (mm)                   Frequency

1.                  140 - 143                                  1

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6.                 160 - 163                                18

7.                  164 - 167                                 3

The class boundary between two classes is the numerical value between the starting value of the higher class, which is 164 for the 7th class in this case, and the ending value of the class of the lower class, which is 163 for the 6th class in this case.

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It can be seen that class boundary for the frequency distribution is 1.

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Answer:

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