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n200080 [17]
4 years ago
12

How is scientific notation used in both math and. Science

Mathematics
1 answer:
viva [34]4 years ago
6 0
It helps them when they have either really big numbers or really small numbers and so they don't have to use so many zeroes
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I need help finding the bottom layer of the cake
Alenkasestr [34]

In a trpezium, the median line is always parallel to the bases. The expression for the length of the median of trapezium is :

\text{length of mediam=}\frac{Sum\text{ of parallel sides}}{2}

In the trapezium: NM = ML=LK=PQ=QR=RS

we have : NP = 8, LR =20

Conisder the case of trapezium NPLR, where MQ is the median

From the expression of the length of median:

\begin{gathered} MQ=\frac{NP+LR}{2} \\ MQ=\frac{8+20}{2} \\ MQ=\frac{28}{2} \\ MQ=14 \end{gathered}

Now, consider the case of trapezium MQSK, where LR is act as median, MQ= 14, LR =20

From the expression of the length of median

\begin{gathered} \text{length of median=}\frac{Sum\text{ of parallel sides}}{2} \\ LR=\frac{MQ+KS}{2} \\ 20=\frac{14+KS}{2} \\ 14+KS=40 \\ KS=40-14 \\ KS=26\text{ inches} \end{gathered}

So, the diameter of the bottom KS is 26 inches

Answer : the diameter of the bottom KS is 26 inches

6 0
1 year ago
Ifballpoint pens are mark 5for95cents how much will adozen cost
MrRa [10]
If 5 pens cost 95 cents, that means that each pen cost 95/5 = 19 cents each. So a dozen will cost:
dozenCost = 12*19 = 228 cents
4 0
4 years ago
Let f(x) = 7x − 13. Find f−1(x).
PIT_PIT [208]
F(x) = 7x − 13
To find f(-x) , just replace x with -x:

f(-x) = 7(-x) - 13

f(-x) = -7x -13
3 0
3 years ago
$18.39 is what percent of $329.64?​
pickupchik [31]

18.39 is 5.58% of 329.64.

We have to find that 18.39 is what percent of 120?

First, make the assumption that 329.64 is 100% as it is our output value.

We next represent the value we seek with x, therefore

100% = 329.64                  

And, x% = 18.39                

Now, we get pair of simple equations

100% = 329.64                  ........(1)

x% = 18.39                         ........(2)

Now by simply dividing equation 1 by equation 2 and note of the fact that the LHS of both equations have the same unit (%);

100% / x% = 329.64 / 18.39

Taking the reciprocal of both sides, we get

x% / 100% = 18.39 / 329.64

or x = 5.58%

Hence, 18.39 is 5.58% of 329.64.

To learn more about percentages, visit: brainly.com/question/14319057

#SPJ9

6 0
2 years ago
Which step is wrong, Step 1, Step 2, Step 3 or Li didn't make a mistake
mart [117]
Hello there!


The correct answer is option A

Instead of the division sign, it suppose to be multiply.

Have fun on Khan Academy!
7 0
3 years ago
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