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Eduardwww [97]
3 years ago
13

What is the value of 2x3squared +x2squared when x = 3

Mathematics
1 answer:
irina [24]3 years ago
6 0
I suspect this is what you mean, if let me know
2x(3)^2+x(2)^2
2(3)(9)+3(4)
54+12=66

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I think is gonna be B


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3 years ago
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The expression below is scientific notation for what number?<br> 6.1 x 10^6
arlik [135]

Scientific notation is a way to write compactly numbers with lots of digits, either because they're very large (like 2393490000000000000000000), or very small (like 0.0000000000356).

We use powers of ten to describe all those leading/trailing zeros, so that we con concentrate on the significat digits alone.

In your case, the "important" part of the number is composed by the digits 6 and 1, all the other digits are zero. But how many zeroes? Well, let's do the computation.

Every power of 10, 10^n is written as one zero followed by n zeroes, so we have

10^6 = 1000000 \implies 6.1 \times 10^6 =6.1 \times 1000000

Multiplying a number by 10^n means to shift the decimal point to the right and/or add trailing zeroes n times. So, we have to repeat this process six times. We shift the decimal point to the right one position, and then add the five remaning zeroes. The result is thus

6.1 \times 1000000 = 6100000

4 0
3 years ago
The weight of 100 identical samples of a substance is
serious [3.7K]
0.1 / 100 * 10 = 0.01 pounds
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3 years ago
A college professor wants to survey a sample of students taking her large lecture course. There are about 150
Katen [24]

Answer:

B

Step-by-step explanation:

B is the only answer that will ensure she gets graduate students in the sample without getting too few or too many.

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The table below shows the amount of flour needed for each recipe. Sort the list below from
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