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FrozenT [24]
3 years ago
14

There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater.

Mathematics
2 answers:
allsm [11]3 years ago
6 0
<span>2.3x10^19 kg This is a matter of multiplication using scientific notation. First, multiply the mantissas 3.5 * 6.6 = 23.1 Then add the exponents -2 + 20 = 18 So we initially have 23.1x10^18 But 23 is too large (the number has to be greater than or equal to 1 and less than 10). So divide the 23.1 by 10 and add 1 to the exponent, getting 2.31x10^19 Then since the least accurate value we have for input has only 2 significant digits, round the result to 2 significant digits, getting 2.3x10^19 kg</span>
olasank [31]3 years ago
6 0

IT IS 2.31, I AM TELLING YOU THIS IS 2.31

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Help please 6x^2-18
prohojiy [21]

Answer:

6(x^2-3)

Step-by-step explanation:

5 0
3 years ago
HELP
Aleks [24]

Answer:

c) 6

Step-by-step explanation:

This is a straight-forward application of the Law of Cosines:

... a² = b² + c² -2bc·cos(A)

... a² = 8² +11² -2·8·11·cos(32.2°) ≈ 64 +121 -176·0.8462

... a² ≈ 36.07000

... a ≈ 6.00583

The best choice is c) 6.

3 0
2 years ago
Last one for todayy lolz
lyudmila [28]
It should be A. not 100% sure since i haven’t done this in awhile but it makes the most sense lol
3 0
3 years ago
Read 2 more answers
What is. <br> m + 0.6 = 2.6
professor190 [17]

Answer:

m=2

Step-by-step explanation:

STEP 1 : m+0.6=2.6

move constant to the right-hand side and change it's sign m=2.6-0.6

STEP 1: m=2.6-0.6

subtract the numbers m=2

5 0
2 years ago
The # of taxi accidents is approximated by y = -143.3x^2 + 1823.3x + 6820 and the # of injuries is approximated by y = -416.72x^
spin [16.1K]
To analyze the problem first is to arrange the equations according to their uses:
# of taxi accident y = -143.3X^2+1823.3x+6820
# of injuries y = -416.72X^2+4416.7x+8500
So the answer if X = 9 will be represented by 1999
# of taxi accident y = 11622.4
# of injuries y = 14495.98
I hope you understand the answer and feel free to ask for more.
3 0
3 years ago
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