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3 years ago

What is the diameter of a human hair written in scientific notation? Plz explain! Thanks! :D

Mathematics

1 answer:

Anestetic [448]3 years ago

4 0

The diameter of human hair is 8.0 x 10^-6
hope this helps :)

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How is multiplying and dividing numbers in scientific notation different from adding and subtracting numbers in scientific notat

lianna [129]

Answer:

add or subtract
multiply or divide

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3 years ago

The student council is selling rolls of gift wrap and ribbon for the holiday season. The council charges $10 for a roll of gift

NikAS [45]

Answer:

10g + 3.5r ≥ 2,500

Hope this helps!

4 0

3 years ago

Read 2 more answers

Which graph shows the solution to this system of inequalities?<br> y < 2x + 4<br> y > -X -3

Arturiano [62]

Answer:

The answer is Graph X.

Always start by isolating the variable \color{red}y on the left side of the inequality.
Change the inequality to equality symbol.
Graph the boundary line from step 2 in the XY-plane.
The last step is to shade one side or region of the boundary line.

Please Mark Brainliest If This Helped!

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3 years ago

A professor has recorded exam grades for 10 students in his class, but one of the grades is no longer readable. If the mean sco

Nostrana [21]

Answer:

unreadable score = 35

Step-by-step explanation:

We are trying to find the score of one exam that is no longer readable, let's give that score the name "x". we can also give the addition of the rest of 9 readable s scores the letter "R".

There are two things we know, and for which we are going to create equations containing the unknowns "x", and "R":

1) The mean score of ALL exams (including the unreadable one) is 80

so the equation to represent this statement is:

mean of ALL exams = 80

By writing the mean of ALL scores (as the total of all scores added including "x") we can re-write the equation as:

$\frac{R+x}{10} =80$

since the mean is the addition of all values divided the total number of exams.

in a similar way we can write what the mean of just the readable exams is:

$\frac{R}{9} = 85\\$ (notice that this time we don't include the grade x in the addition, and we divide by 9 instead of 10 because only 9 exams are being considered for this mean.

Based on the equation above, we can find what "R" is by multiplying both sides by 9:

$\frac{R}{9} = 85\\R=85*9= 765$

Therefore we can now use this value of R in the very first equation we created, and solve for "x":

$\frac{R+x}{10} =80\\\frac{765+x}{10} =80\\765+x=80*10=800\\765+x=800\\x=800-765=35$

4 0

3 years ago

This is the question.

umka21 [38]

Answer:

Step-by-step explanation:

as you can see they want you to find the total out of the gallons so the first thing you want to do is get 1,688 and 1,297 and multiply both of them the total is 2189336 so 1,688 x 1,297=289336

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3 years ago