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Yanka [14]
2 years ago
12

Express each number in scientific notation. 0.00000186

Mathematics
1 answer:
finlep [7]2 years ago
5 0

Answer:

Step-by-step explanation:

0.00000186=1.86*10^{-6}

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5 (x +2)= 11 can someone please tell me what X equals with an explanation i judt dont get math i thought i did but i dont
telo118 [61]
X=1/5
Pls mark brainliest
5 0
3 years ago
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8. Bob bought a pair of tennis shoes on sale
mr_godi [17]

Answer:

20%

Step-by-step explanation:

So, I would set this up as a proportion-

72          x

90        100

Cross multiply-

100 x 72 = 7200

Divide-

7200/90 = 80

Subtract-

100 - 80 = 20

So, it is a 20% decrease

4 0
3 years ago
Which of the following operations is true regarding relative frequency distributions? Multiple choice question. No two classes c
pshichka [43]

Answer:

The relative frequency is found by dividing the class frequencies by the total number of observations

Step-by-step explanation:

Relative frequency measures how often a value appears relative to the sum of the total values.

An example of how relative frequency is calculated

Here are the scores and frequency of students in a maths test

Scores (classes)              Frequency                Relative frequency

0 - 20                                10                               10 / 50 = 0.2

21 - 40                               15                               15 / 50 = 0.3

41 - 60                               10                               10 / 50 = 0.2

61 - 80                                5                                 5 / 50  = 0.1

81 - 100                             <u> 10</u>                                10 / 50 = <u>0.2</u>

                                          50                                               1

From the above example, it can be seen that :

  1. two or more classes  can have the same relative frequency
  2. The relative frequency is found by dividing the class frequencies by the total number of observations.
  3. The sum of the relative frequencies must be equal to one
  4. The sum of the frequencies and not the relative frequencies is equal to the number of observations.

4 0
2 years ago
What is the binomial therom ?
Flauer [41]

Answer:

Binomial theorem, statement that for any positive integer n, the nth power of the sum of two numbers a and b may be expressed as the sum of n + 1 terms of the form.

3 0
2 years ago
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What is the solution to this fraction problem
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Answer:

ABCD

Step-by-step explanation:

so first you use glue and then paint and then contact solution

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