All categories

2 years ago

[HELP]

Mathematics

2 answers:

SpyIntel [72]2 years ago

8 0

Answer:

72 pages (648 discs)

Step-by-step explanation:

algol132 years ago

5 0

Answer:

Step-by-step explanation:

72 pages/648 discs

You might be interested in

How many degrees are inside of a convex hexagon? Remember to use (n-2)180.

Pavlova-9 [17]

Answer:720
Very good at doing degrees in math!

5 0

2 years ago

80 to 60 as a fraction

Alenkasestr [34]

Answer:

4/3

Step-by-step explanation:

80 to 60 means a ratio. That means 80:60, which means 80/60, which simplifies to 4/3.

7 0

3 years ago

Read 2 more answers

Less than a number is 18. What is the number (n)?

olchik [2.2K]

Answer:

Step-by-step explanation:

18<n

8 0

3 years ago

Find the derivative of f(x) = 8x^2 + 11x at x = 7.

sleet_krkn [62]

Thank you for posting your question here at brainly. Feel free to ask more questions.

f′(x)=2∗(8x(2−1))+1∗11x(1−1)

which is

f′(x)=16x+11

then let x = 7 gives us

f′(7)=123

Hope my answer would be a great help for you.

6 0

3 years ago

The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim

nataly862011 [7]

Answer:

≈ 1833

Step-by-step explanation:

To find ratio of proton mass to electron mass, we have to divide.

The numbers are given in scientific notation.

Let a number be $a*10^b$ and another be $c*10^d$ , when we divide, we will follow the rule shown below:

$\frac{a*10^b}{c*10^d}=(\frac{a}{c}*10^{b-d})$

Now, we use the information given to find the ratio:

$\frac{1.67*10^{-24}}{9.11*10^{-28}}\\=(\frac{1.67}{9.11}*10^{-24--28})\\=0.1833*10^4$

This means we can find the number by taking 4 decimal places to the right, so that would becomes:

$0.1833*10^4=1833$

The approximate ratio is 1833 [mass of proton is around 1833 times heavier than mass of electron]

7 0

3 years ago

Read 2 more answers