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3 years ago

How do you add or subtract [-4]+6

Mathematics

2 answers:

Shalnov [3]3 years ago

8 0

Answer:

Step-by-step explanation:

[-4] + 6 = 2

When two numbers are of different sign, subtract and the result will have the sign of bigger number.

Here the bigger number is 6 and it's sign is positive (+). So , the answer is +2

Lorico [155]3 years ago

3 0

Answer:

Step-by-step explanation:

(-4) + 6

remove the unnecessary parentheses

-4 + 6

calculate the sum which is

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4 years ago

A bank requires that its customers create a PIN to access their account. The pin must be 2 letters followed by 2 numbers. How ma

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Answer:

There are 60840 unique PINS if letters can be repeated but digits cannot be repeated

Step-by-step explanation:

In total, there are 26 letters and 10 digits.

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4 years ago

A bag contains 4 red marbles, 8 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the probabili

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Answer:

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Step-by-step explanation:

Number of red marbles = 4

Number of blue marbles = 8

Number of Green marbles = 2

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The formula used will be: $Probability=\frac{Number\:of\:favourable\:outcomes}{Number\:of\;possible\:outcomes}\\$

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Number of possible outcome = 14 (Total number of marbles)

The probability will be:

$Probability=\frac{Number\:of\:favourable\:outcomes}{Number\:of\;possible\:outcomes}\\\\Probability=\frac{4}{14}\\ Probability=0.2857\\$

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$Probability = 0.2857*100\\Probability=28.5%$

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Answer:

Step-by-step explanation:

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