Draw to show how you can use models to compare 345 and 391

1 answer:

ozzi2 years ago

7 0

You can draw a drawing with 9 tens 1 ones and 4 tens 5 ones ten subtract the 91 and 45 then draw 300 and 300 and then your done!

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What is 772,000 written in scientific notation?

SashulF [63]

When using scientific notation, the number (that is not 10 to the nth power) is always between 1 and 10.

For 772,000.0, I've added the decimal to the correct place. In order to get a number between 1 and 10, we will need to move the decimal 5 places. This leaves us with 7.72 x 10^5.

But, as I see that the answer above is not an option, and the only correct answer would be A, It is the only one between 1 and 10, I feel that there may be a mistake. For A to be correct, the original number would be 7,720,000,000.

Best answer: A

Hope this helps!! :)

3 0

2 years ago

Given: f(x) = 2x2 + 4x + 5,<br> f(a) = ?

Drupady [299]

Answer:

f(a) = 2a² + 4a + 5

Step-by-step explanation:

7 0

2 years ago

Eric completed 1/3 of his homework before dinner and then 2/7 after dinner. How much homework did Eric complete?