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ale4655 [162]
3 years ago
9

Jordan wrote 4,500 in scientific notation as 4.5. x 10^2. Is this correct? If not, why not?

Mathematics
2 answers:
Stells [14]3 years ago
6 0
This is not correct. 4.5*10^2 is the same thing as 4.5*100, or 450.  The correct answer is 4.5*10^3, as 10^3 is 1000, so 4.5*1000=4500.

Hope this helps!
Vadim26 [7]3 years ago
4 0

Answer:

the anwser is C

Step-by-step explanation:

The power of ten should be 10

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Step-by-step explanation:

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1. In triangle ABC, D is the midpoint of BC. If Ac = 3x-15 and DE =6, what is the value of x?
Misha Larkins [42]

Answer:

<u>Option C. 9</u>

Step-by-step explanation:

The question is as following:

In triangle ABC, D is the midpoint of line AB and E is the midpoint of line BC. If AC= 3x-15 and DE= 6, what is the value of x?

==================================================

See the attached figure which represents the problem.

As shown:

D is the midpoint of line AB ⇒ AD = DB

E is the midpoint of line BC  ⇒ BE = EC

Apply The Mid-segment theorem which states that the mid-segment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle, and the length of this mid-segment is half the length of the third side.

So, DE = 0.5 AC

Given: Ac = 3x-15 and DE =6

∴ 6 = 0.5 (3x - 15)

solve for x

Multiply both sides by 2

12 = 3x - 15

3x = 12 + 15 = 27

x = 27/3 = 9

So, the value of x is 9

<u>The answer is option C. 9</u>

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Answer:

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Step-by-step explanation:

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64^(1/2)

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