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3 years ago

Can you help answer these:

Mathematics

2 answers:

Papessa [141]3 years ago

8 0

Step-by-step explanation:

(-3)*(1+3) = -9
(-3)*(-3) = 9
(+20)(+5) =100
(+21)(-3) = -63
(-2)*(+3)*(-4) = 24

mojhsa [17]3 years ago

6 0

Answer:

1) -3 x 3=-9

2) -3x-3=9

3)20x5=100

4) 21x-3=-63

5) -2x3x-4=24

note: negative x positive= negative

negative x negative=positive

positive x positive= positive

Step-by-step explanation:

hope this is helpful

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BlackZzzverrR [31]

Given Information:

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3 years ago

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Step-by-step explanation:

This problem can be solved with the Radioactive Half Life Formula:

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