700.000 = 7 . 10 . 10 . 10 . 10 . 10
We know that equal bases sum the exponents, so,
7 . 10^(1 + 1 + 1 + 1 + 1)
7 . 10^5 = 700.000
But we can also say:
(7 . 10) . 10^4
or
(70 . 10) . 10³
or
(700 . 10) . 10²
or
(7000 . 10) . 10
As we can see, the alternative C shows (7 . 10) . 10^4 which can be a correct ans, so, alternative C.
X-4/3 = 3x-4/7
First add 4/3 to each side -->x = 3x + 16/21
Then Subract 3x from each side -->-2x = 16/21
Then divide each side by -2 --->x = -3.81
Answer:
24
Step-by-step explanation:

Square both sides:

Subtract 1 from both sides:

Hope this helps!
Let a be the arc length...
a/(2πr)=90/360
a/(2πr)=1/4
a=πr/2 and r=7.5 so
a=3.75π cm
a≈11.78 cm (to the nearest one hundredth of a cm)
The answer is B :)
Hope this helped :)