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scoray [572]
2 years ago
7

0.000000205 In standard form

Mathematics
2 answers:
zalisa [80]2 years ago
6 0

Answer:

2.05 × 10⁷

Step-by-step explanation:

0.000000205

We'll move the decimal point after the first non-zero digit (as per the scientific notation rules) and the standard form would be :

=> 2.05 × 10⁷

ozzi2 years ago
3 0

Answer:

205 × 10^{-9}

Step-by-step explanation:

10^{-9} = 0.000000001

0.000000001 × 205 = 0.000000205

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I Need help with question 21 and 22 !
USPshnik [31]
11) First, add 74 and 43.

74+43=117

Subtract 117 from 180. Do this because this will give you the value of angle 1. This is because the sum of the angles in a triangle will always add up to 180 degrees.

180-117=63

Angle 1 = 63 degrees

Angle 2 also equals 63 degrees, because they are vertical angles.

Angle 2= 63 degrees

Now, add 63 and 79

63+79=142

Subtract 142 from 180

180-142=38

Angle 3 = 38 degrees

12)

First, subtract 56 from 180. Do this to find angle C. They are supplementary angles, so they will equal 180 degrees.

180-56=124

Angle C=124 degrees

Now, add 124 and 20

124+20=144

Finally, subtract 144 from 180

180-144=36

The measure of angle A is 36 degrees

Hope this helped! :)


7 0
3 years ago
A certain 90-mile trip took 2 hours. Exactly 1/3 of the distance traveled was by rail and this part of the trip took 1/5 of the
antiseptic1488 [7]

The average rate, in miles per hour, of the rail portion of the trip is; D: 75

<h3>How to calculate the average speed?</h3>

Since exactly 1/3 of the distance travelled was by rail, then we can say that;

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We are told that part of the trip took 1/5 of the travel time. Thus;

Time it takes to travel that distance is:

(1/5) * (2) = 2/5 of an hour

Average rate is;

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Read more about Average speed at; brainly.com/question/4931057

#SPJ1

7 0
2 years ago
There are 57 students in the orchestra and twice that number in the band. There are 18 boys and 28 girls in the choir. If each s
Klio2033 [76]
There are 217 students total
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5 0
3 years ago
7y(8y - 7) + 46y Please Simplify
Dafna1 [17]
Distribute first
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now we have
56y^2-49y+46y
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tada
6 0
3 years ago
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