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kaheart [24]
2 years ago
11

Question 4 of 10

Mathematics
1 answer:
dangina [55]2 years ago
8 0
The answer is For what rule describes a dilation with a scale factor is B
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1. Write numbers from standard form to Scientific notation for the following: The diameter of human DNA is about 0.000000002
zheka24 [161]
Okay, so in order to find scientific notation you're going to either move the decimal place to the left or right in order to make your answer a number between 1 and 9. In this case you're going to need to move it right, because you need to make it bigger in order to make it a number between 1 and 9. You'll have to move the decimal 9 places to the right, which will give you the number 2. Since you are making the number bigger, your exponent will be negative. That happens anytime you move the decimal place to the right. To the left, your exponent will be positive. Therefore the answer to 1 is:
2.00X10^-9

As for number two, you must first start by using the area formula of a triangle. That equation would be
A= 1/2bh or A=bh/2 (b=base and h=height)
By plugging that in you get an area of 83,200 miles. As mentioned before, when finding scientific notation, you want a number between 1 and 9. To do so, we have to make this number smaller by moving the decimal 4 places to the left (making the exponent positive) and resulting in an answer of:
8.32X10^4 miles
4 0
3 years ago
If anyone has seen my other post this is my last one, I just really need to bring up my grade and I’ll really appreciate your an
Ganezh [65]

Answer:

55 mph

Step-by-step explanation:

First hour: 40 mph

Second, Third, Fourth hours:

180 miles / 3 hours = 60 mph

Average: 40 (hour 1) + 60 (hour 2) + 60 (hour 3) + 60 (hour 4) = 220 / 4 hours = 55 mph average

I hope this helps!

6 0
3 years ago
Read 2 more answers
Abby is adopting kittens from the pet store. if there are 18 kittens, how many ways can she choose 2 kittens?​
Bas_tet [7]

Answer:

I believe 9

Step-by-step explanation:

18/2=9 i think this is your answer

4 0
3 years ago
If the length of the base of a triangle is
Anarel [89]

Answer:

d

Step-by-step explanation:

the answer is 12% decrease in area

5 0
2 years ago
OMG IMMA FAILLLLLLLLLLLLLLLLLL
Murrr4er [49]

Answer:

The answer is A.)10 1/2

6 0
3 years ago
Read 2 more answers
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