3 years ago

Multiplying using partial products

1 answer:

4 0

Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Brainliest answer, please?

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Estimate the value of 102.3 divided by 4.7

Burka [1]

102.3/4.7 => 1023/47 = 21.76596 ~= 22 ( 2 sig fig )

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3 years ago

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A new house costs $160,000.00. Sara wants to buy the house and needs $1,534.00 for a down payment. If Sara currently has $1,300.

Musya8 [376]

The answer is 15999.97

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3 years ago

Paul is driving his car. At the end of two hours he has driven 68 miles, then at the end of 4 hours he has driven 132 miles. Wha

lakkis [162]

This problem describes two points in a route of 4 hours. He went through 68 miles after the first two hours, and 132 miles after 4 hours of driving. We need to calculate the average rate of change.

The average rate of change is the division between the total distance and the time it took to travel that distance, so we have:

$r=\frac{132}{4}=33\text{ miles per hour}$

The average rate of change is equal to 33 miles per hour.

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2 years ago

Find the exact roots of the polynomial; write the roots in simplest radical form, if necessary.

Liula [17]

I can see that 2 is a root but not 1? So I tried -1 by substitution and that works.

So to work out the 3rd root we just use the sum and product of roots theorem.

We have the sum of the roots = 11/7 and from there the third root is 4/7

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3 years ago

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ki77a [65]

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3 years ago