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3 years ago

What is 517 times 82

Mathematics

1 answer:

spin [16.1K]3 years ago

8 0

Answer:

42,394

Step-by-step explanation:

It is simple multiplication. :)

517 * 82 = 42394

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samantha works at a nursery where she pots plants it takes her 1/1/2 hours to pot 12 plants ) how many plants can samantha pot i

scoundrel [369]

Answer:

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Step-by-step explanation:

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3 years ago

How many 4-digits number can be formed out of 0,1,2,3,5,7 and 8. If:

Bad White [126]

Answer:

Below in bold.

Step-by-step explanation:

No repetition.

There are a total of 7 numbers.

For the number to be even it must end in 0, 2 or 8.

The other 3 numbers will be the number of permutations of 3 from the 6 other numbers.

Number of 4 digit numbers ending in 0

= 6P3 = 6! / 6-3!

= 120.

Now the number could also end in 2 or 8,

so there are 3*120 = 360 4-digit even numbers (no repetition).

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There are 3 * 7^3 = 1029 with repetition.

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3 years ago

A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.

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3 years ago

Which shows the expression below in simplified form? (7 × 10-3) - (2.3 × 10-6) A. 6.9977 × 10-3 B. 6.99977 × 10-3 C. 6.9977 × 10

rosijanka [135]

Option A

$(7 \times 10^{-3}) - (2.3 \times 10^{-6}) = 6.9977 \times 10^{-3}$

<em><u>Solution:</u></em>

Given expression is:

$(7 \times 10^{-3}) - (2.3 \times 10^{-6})$

To evaluate the expression, let us make the exponent of 10 same

$2.3 \times 10^{-6} = 0.0023 \times 10^{-6+3} = 0.0023 \times 10^{-3}$

[ Here, decimal point is moved three times left, so add 3 ]

Therefore,

$(7 \times 10^{-3}) - (2.3 \times 10^{-6}) = (7 \times 10^{-3}) - (0.0023 \times 10^{-3})$

$\text{Take the } 10^{-3} \text{ as common }$

$(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 10^{-3}(7-0.0023)\\\\\text{ Solve for terms inside the bracket }\\\\(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 10^{-3} \times 6.9977\\\\\text{Therefore, the simplified expression is: }\\\\(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 6.9977 \times 10^{-3}$

Thus Option A is correct

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4 years ago

a dog weights two ponds less than three times the weight of a cat. the dog also weights twenty two pounds than the cat. write an

Rasek [7]

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4 years ago