D
the answer is D. dilation cannot be used to prove this
Answer:
Question 1: 4.5(10^−7)(2(10^4))
=
9/1000
(Decimal: 0.009)
Question 2:
mass of neutron/mass of electron = 2*10-24/(9*10-28)
2x10^(-24)/9x10^(-28)
d is closest.
Question 3:
4(10^3)(12(10^5))
=4000*1200000
=4*1000*12*100000
=(4*12)*(1000*100000)
=48*100000000
=4800000000
And these things : ^ mean raising the number to become exponets and when I put the number into a bold text thats the answer!
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Answer:
the last one
Step-by-step explanation:
Answer:
I do not konw. SOREY
Step-by-step explanation:
Answer:
![13\pi/2](https://tex.z-dn.net/?f=13%5Cpi%2F2)
Step-by-step explanation:
The formula of the circumference of a circle is
.
The length of an arch can be found by using the ratio of circumference to the arc.
First, find the circumference of the circle:
![2\pi *13=26\pi](https://tex.z-dn.net/?f=2%5Cpi%20%2A13%3D26%5Cpi)
Then you find the ratio:
The length of the arc is 90/360, which is 1/4, of the circumference.
Finally, find the length of the arc:
or ![13\pi/2](https://tex.z-dn.net/?f=13%5Cpi%2F2)
I hope this helps :)