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Mumz [18]
3 years ago
10

Correct answer will be marrk as braineast answer​

Mathematics
1 answer:
Svetlanka [38]3 years ago
4 0
The answer is B trust me
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Yeah 82,300,000 scientific notation
IceJOKER [234]

Answer:

Dear user,

Answer to your query is provided below

82300000 in scientific notation = 8.23 × 10^7.

Step-by-step explanation:

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.

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3 years ago
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Write an equation of the line that passes through (−3,3) and is perpendicular to the line 2y=8x−6.
fiasKO [112]

Answer:

4y = -x + 9

Step-by-step explanation:

2y = 8x - 6

Divide through by 2:-

y = 4x -3   so the slope of this line  = 4

Slope of the line perpendicular to this  = -1/4

So using the point/slope form of an equation of a line and the point (-3,3) we have:-

y  - 3 =  -1/4(x - -3)

y = -1/4x - 3/4 + 3

y = -1/4 x + 9/4    Multiply through by 4:-

4y = -x + 9    

6 0
3 years ago
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Why might you need to change the inequality sign when you solve an inequality using algebra tiles?
Allisa [31]
When dividing by a negative number, you switch the signs.
8 0
4 years ago
PLEASE INCLUDE ALL STEPS! BRAINLIEST GETS 25+ POINTS!!
lora16 [44]

Answer:

Roberto did 4 or 5 hours

Step-by-step explanation:

r- Roberto

e- Edward

j- Jim

j = 1 hr. paddled

r= 2e for the number of hours, r, robert paddled.

r+ e+ j < 10 Substitute in for r and j.

2e+ e+ 1 < 10

3e <9

e< 3

r = 2*e

r < 2*3  I Changed it to less than, so because edward has to do less than 3 hours, so now im finding the number of hours that he has to be below.

r<6

Roberto did less than 6 hours.  

Edward did less than 3 hours.

Jim did 1 hour.

Possible Combination of hours that satisfies all the criteria and is below 10 total hours:

Jim Does 1 hour, Edward does 2 hours, and Roberto does 4  hours.

Another Possibility is

Jim does 1 hours, Edward does 2.5 hours and Roberto does 5 hours.

(Edward has to do 2.5 hours for Roberto to do 5 hours, because it states that Roberto does twice as many hours as Edward, it does not state that he did more than twice as many hours so it is necessary for Edward to do 2.5 hours for Roberto to do 5.)

4 0
3 years ago
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