Answer:
C and D
Step-by-step explanation:
using the rules of exponents
A
= ![\sqrt[7]{125^3}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B125%5E3%7D)
≠ ![\sqrt[3]{125^7}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B125%5E7%7D)
B
(
)^7 = 
≠ 
C
(
)^5 = 
← correct
D
(
)^9 = 
← correct
Answer:
See below.
Step-by-step explanation:
7x^2 = 343 Divide both sides by 7
7x^2/7 = 343/7
x^2 = 49 Take the square root of both sides.
sqrt(x^2) = sqrt(49)
x = +/- 7
Answers
I think the last two are kind of iffy. I'm not sure you can call them solutions, but the question probably assumes they are. If you use all four answers and get it wrong, them submit +7 and - 7.
The approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.
<h3>What is Exponential equation?</h3>
In mathematics, an exponential function is a function of form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.
Here, given equation; (we are using n in place of t)
-5.e¹⁰ⁿ = -30
On dividing -5 both sides, we get
-5.e¹⁰ⁿ/-5 = -30/-5
e¹⁰ⁿ = 6
Taking 'ln' on both side, we get
10n = ln 6
n = (ln 6)/10
n = 1.791759/10
n = 0.179
Thus, the approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.
Learn more about exponential function from:
brainly.com/question/14355665
#SPJ1
It is 4:2
Since it is similar AB is double the size of AB' and BC is double the size of BC'. so 4:2 4 is double the size of 2.
