These are exponents. To solve an exponent you need to multiply the base it self how many times its says in the power.
a²
a = base
2 = power
5³ = 5 × 5 × 5 = 125
5³ = 125
4³ = 4 × 4 × 4 = 64
4³ = 64
Answer:
c for plato users;)
Step-by-step explanation:
Answer:
Step-by-step explanation:10x+15+2+x
11x+17
Answer:
y = 2·5^x
Step-by-step explanation:
Using the given points, we can solve for 'a' and 'b'.
y = ab^x
2 = ab^0 = a . . . . . substitute (0, 2) for (x, y)
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1250 = 2·b^4 . . . . substitute for 'a' and (4, 1250) for (x, y)
625 = b^4 . . . . divide by 2
5 = b . . . . . . . take the 4th root
The function is ...
y = 2·5^x
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<em>Additional comment</em>
There are two real and two imaginary 4th roots of 625. Only the positive real root is useful as the base in an exponential function like this.
