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3 years ago

What is the value of this expression - 4.2(-2.8+4.5)

Mathematics

2 answers:

iVinArrow [24]3 years ago

4 0

Answer:

7.14

Step-by-step explanation:

Although there's more than one way in which to approach this problem, the best way is to perform the addition inside parentheses first:

- 4.2(-2.8+4.5) = -4.2(1.7) = 7.14

vitfil [10]3 years ago

3 0

-7.14 it the answer booooooooooooooohhhhhhh

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If an investment account starts with $3,900, and grows with 2.1% interest, compounded annually, how much is the account worth af

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Answer:

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Step-by-step explanation:

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3 years ago

What is the 4th perfect number and what are its divisors?

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Answer:

8128

1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, 4064

Step-by-step explanation:

A perfect number is one whose divisors total the number itself. Only 51 perfect numbers are known at this time. The first five are ...

6, 28, 496, 8128, 33550336

The fourth perfect number is 8128. Its divisors (excluding the number itself) are ...

1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, 4064

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