Which relation does not represent a function? A. {(3, 0)}, {(0, 3)}. B. {(6, -2), (5, -2)}. C. {(3, 4), (3, 5)} D. {(5, 5), (-5,
Fittoniya [83]
A function will not have repeating x values...all the x values will be different. But u don't want a function...so u want repeating x values.
That leaves C...because u have repeating x values (3 is ur repeating x value)...so C is not a function
Answer:
<h2>
$30.24!</h2>
Step-by-step explanation:
Find the discounted price by setting up an equation
40-.3(40) AKA 30% of the original price is being taken off of the original price
Evaluate
40-12
$28 = discounted price
Sales tax is based on the reduced/discounted price* remember this
OF= multiplication (in this scenario)
.08x28
$2.24= sales tax
Add tax with discounted price
28+2.24=
<h2>
$30.24!</h2>
Using an exponential function, it is found that it's annual growth rate is of 4%.
<h3>What is an exponential function?</h3>
An increasing exponential function is modeled by:
In which:
- A(0) is the initial value.
- r is the growth rate, as a decimal.
In this problem, the card appreciates exponentially in value by 50% over 10 years, hence:
A(10) = 1.5A(0).
Thus:
![\sqrt[10]{(1 + r)^{10}} = \sqrt[10]{1.5}](https://tex.z-dn.net/?f=%5Csqrt%5B10%5D%7B%281%20%2B%20r%29%5E%7B10%7D%7D%20%3D%20%5Csqrt%5B10%5D%7B1.5%7D)
1 + r = 1.04.
r = 0.04.
0.04 x 100% = 4%.
It's annual growth rate is of 4%.
More can be learned about exponential functions at brainly.com/question/25537936
10×+30=12×
10×-12×=-30
-2×=-30
×=15
