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Monica [59]
2 years ago
13

How many kilometers are there in 9000000cm​

Mathematics
2 answers:
tekilochka [14]2 years ago
7 0

QUESTION:- How many kilometers are there in 9000000cm.

ANSWER:-

1cm =  {10}^{ - 5} km \\ 9000000cm =9000000 \times  {10}^{ - 5} km \\ 9 \times  {10}^{6} cm = 9 \times  {10}^{6}  \times  {10}^{ - 5}  \\ 9 \times  {10}^{6} cm = 9 \times  {10}^{6 - 5}  \\ 9 \times  {10}^{6} cm = 90km

erik [133]2 years ago
5 0

Answer:

90 kilometers

Step-by-step explanation:

https://www.bing.com/search?q=kilometers+are+there+in+9000000cm

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Which of the following is a reflection of ( 2,4 ) across the x-axis?
fiasKO [112]

Answer:

(2,-4)

Step-by-step explanation:

(2,4) is located in Quadrent I (+,+), if you reflect over the x-axis, it would be in Quadrent IV (+,-).

if you dont understand I suggest you draw a coordinate plane on a graphing notebook.

7 0
3 years ago
Todd is 81 years younger than Rosa. 3 years ago, Rosa’s age was 4 times Todd’s age. How old is Todd now?
Delvig [45]
Let t represent Todd's age now.
.. 4(t -3) -(t -3) = 81 . . . . . . 3 years ago, their differnce in ages was 81.
.. 3t -9 = 81
.. t = (81 +9)/3 = 30

Todd is 30 now.

_____
You can also work this by considering "ratio units." 3 years ago, the ratio of their ages was 4:1, a difference of 3. That difference corresponds to 81 years, so each "ratio unit" represents 81/3 = 27 years. Todd's age then was 1 ratio unit, 27 years. Now, Todd's age is 30.
8 0
3 years ago
Jordan lives 6 kilometers due south of his parents' house and 4 kilometers west of his grandparents' house. On his birthday, Jor
rusak2 [61]

Answer:

Step-by-step explanation:

The direction of movement of Jordan on his birthday forms a right angle triangle. His movement from his house to his parents due south represents the opposite side of the right angle triangle. His movement due west represents the adjacent side and the movement back home along the straight line, d represents the hypotenuse. To determine d, we would apply the Pythagorean theorem. Thus

d² = 6² + 4² = 52

d = √52 = 7.2 km

The total distance that he drove on his birthday is

6 + 4 + 7.2 = 17.2 km

5 0
3 years ago
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Trava [24]

Answer:

A

Step-by-step explanation:

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7 0
3 years ago
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Step-by-step explanation:

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