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andrezito [222]
3 years ago
9

Which is the best estimate for (2.8 times 10 Superscript 3 Baseline) (4.1 times 10 Superscript 6 Baseline) written in scientific

notation? 7 times 10 Superscript 9 1.2 times 10 Superscript 10 1.5 times 10 Superscript 10 12 times 10 Superscript 18? I NEED IT ASAP!!!
Mathematics
2 answers:
Igoryamba3 years ago
9 0

Answer:

your answers c mate

Step-by-step explanation:

SSSSS [86.1K]3 years ago
6 0

Answer:

B

Step-by-step explanation:

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Help would be greatly appreciated!
eimsori [14]

b

Take a look at everything inside the brackets sqrt(50x^2) = sqrt(5*5*x*x * 2) For ever 2 factors you can bring one out and drop the other one. That means take out 5 * x * sqrt(2). Two is what is left inside the brackets. B must = 2.

c

Do the same thing here. Write all the primes under the square root. Take out 1 for every two under the root sign. sqrt(32x) = sqrt(2*2*2*2*2*x) You can bring out two 2s. There is one left over. Leave it under the root sign. The x is a loner. It stays under the root sign. c = 2 * 2 = 4.

e

Again do the prime factor thing. sqrt(18n) = sqrt(3*3*2*n) = 3*sqrt(2*n)

e = 3

g

sqrt(72*x*x) = sqrt(3 * 3* 2 * 2 * 2 * x * x) = 3 *2 * x* sqrt(2) For every 2 prime factors you can pull out 1 of them outside the square root sign. g = 6

Comment

There are many people on the net and on Brainly that will say that you should know the perfect squares from 1 to 100 (say) so 4 9 16 25 36 49 64 81 100 are the numbers that you should memorize. When they are under the root sign, their roots can be taken out as 2 3 4 5 6 7 8 9 10. For this question I think it is better to use the pairs rule I've given you above. If someone else answers they are likely to do it the way it is written up in this paragraph. It's a free country. You are free to take the answer you like best.

7 0
3 years ago
1. Dean Morimoto spends 1 hour 20 minutes get-
Serga [27]

Answer:

He needs to get up at 6:30 am.

Step-by-step explanation:

  1. convert all time to minutes (easier to add times and you can later convert back to hours)
  2. add all the minutes up
  3. divide by 60
  4. subtract the quotient from 9 (since that is the time he needs to get there)
  5. you should get 6.5 which is 6:30

4 0
3 years ago
What is a compatible form in math?
yKpoI14uk [10]
<span> Compatible numbers are numbers that look nice or friendly with each other when we do mental calculation to estimate a product, but especially a division</span>
4 0
3 years ago
Select all situations that can be modeled with a linear function. A taxi charges an initial fee of $2.00 and $1.50 for each addi
stiks02 [169]
The taxi, the airplane, and the pizza can be shown as linear functions
3 0
4 years ago
Find the measure of the angle​
Otrada [13]
The answer is:

explaination:
7 0
3 years ago
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