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Kipish [7]
3 years ago
6

A scientist measured the wavelength of an X-ray as 0.0000000065 meters.

Mathematics
2 answers:
Marysya12 [62]3 years ago
7 0

Answer:

6.5 * 10^-9 metres.

Step-by-step explanation:

This is < 1 so the exponent is negative

We count the number of digits after the decimal point up to and including the first digit > 0.

This is 9 digits.

So the answer is 6.5 * 10^-9.

ryzh [129]3 years ago
4 0

Answer:

6.5 * 10 ^ -9

Step-by-step explanation:

0.0000000065

Scientific notation means a* 10 ^b

where a  is number between 1 and less than 10

Move the decimal  9 places to the right which means the power of 10 is negative since we moved the decimal to the right

6.5

The power of 10 is -9

6.5 * 10 ^ -9

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Hope it helps :)
4 0
3 years ago
a rectangle has a perimeter of 34 inches the left side is 6 inches long what is the length of the top side
blsea [12.9K]

<span>P=34</span> inches<span>
a= left side=6 inches</span>

b= top side

P=2a+2b<span>

<span>P=34=2*6+2b
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b=11</span></span>

the length of the top side is 11 inches

6 0
3 years ago
answer carlos sells 32 muffins at a bake sale. jake sells 25 fewer muffins. how many muffins does jake sell?
-BARSIC- [3]

Answer:

7

Step-by-step explanation:

32 muffins that carlos sells - 25 = 7 muffins

3 0
2 years ago
Read 2 more answers
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kykrilka [37]

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Answer: \quad \dfrac 4 5


5 0
3 years ago
Tatenda has a Chocolate chip cookie recipe that uses 2 cups of sugar for 5 dozen cookies.How much sugar will he need if he only
poizon [28]
1 1/3 CUP 

You would put
2 cups   times x
_____             _____
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You would need to cross multiply then divide.
so 2 times 40 divided by 60

you would need to make 5 dozens into the amount of cookies
4 0
3 years ago
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