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Rudiy27
3 years ago
6

What is scientific notation?

Mathematics
2 answers:
horsena [70]3 years ago
8 0

Scientific notation is basically a shortcut for writing numbers. Scientists use it all the time if they are writing numbers that are very large or very small. If you encounter numbers that have many zeros at the end, you can use scientific notation to save your time. When using scientific notation, you're allowed to simplify all the zeros that you have in the number by writing the number as a product of a number and a power of 10.

Montano1993 [528]3 years ago
7 0
An expression to represent a decimal between 1 and 10 multiplied by ten. basically to write larger numbers with less digits.
 ex . 100 = 1 x 10^2
ex. 4321= 4.321 x 10^3
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When principal = Rs x, Time = y years and Rate = z% per year, calculate the simple interest.
Marianna [84]

Answer:

X×Y×Z%/100

Step-by-step explanation:

using formula

si=p×t×r%/100

3 0
2 years ago
PLEASE HELP, I WILL UP POINTS AND VOTE BRAINLIEST! DONT MAKE ME WASTE MY 88 POINTS.
Allushta [10]

Answer:

Ok im  using a standered form calculator:

1. 9/7x + 1/7 = -8

2. y = -6/5x - 3 =  -11

3. y = 1/3x - 2 = -10

Step-by-step explanation:

I will be glad to help more

6 0
3 years ago
Quicky help????????????
sergeinik [125]

Step-by-step explanation:

first bring 87.5 to right

25t=12.5+87.5

25t=100.0

then bring 25 to right so it will divided

t=100.0/25

t=4

putting value of t in 25t-87.5=12.5

25(4)-87.5=12.5

5 0
3 years ago
What’s the correct answer for this question?
weqwewe [10]

Answer:

Last answer choice

Step-by-step explanation:

The AAS congruence theorem uses two adjacent angles, followed by a side length on the side (not in between the angles.) Therefore, the first answer is ruled out (because it deals with angles and not sides), and the second answer is ruled out because it involves side lengths between angles. LP=MO may be true, but it does not compare the two triangles that we are interested in. However, the last answer choice is correct, because a midpoint divides a line exactly in half, meaning that both halves are the same length and therefore congruent. Therefore, the last answer choice is correct. Hope this helps!

7 0
3 years ago
Can someone help me real quick
LuckyWell [14K]

Answer:

12 movies

Step-by-step explanation:

If you do not rent any vidoes you will be charged $45 no matter what, so...

Movies + 45 = total charge

each movie is 1.99 and you owe (total charge) $68.88

equation:

1.99x + 45 = 68.88

          -45       -45    (subtract 45 from each side to keep equation balanced)

1.99x = 23.88  (now divide both sides by 1.99 to get x alone)

     x = 12

you rented 12 movies

3 0
3 years ago
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