The function of exponential growth or decay is given as y= a(1 ± r)ˣ. y represents a function of exponential decay with 45%. The correct option is D.
<h3>What is exponential growth or decay function?</h3>
Consider the function:
y= a(1 ± r)ˣ
where m is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.
- If there is plus sign, then there is exponential growth happening by r fraction or 100r %.
- If there is negative sign, then there is exponential decay happening by r fraction or 100r %.
If we compare the given function with the exponential function, then it can be observed that the value of (1±r) is less than 1, therefore, the function will be of exponential decay.
Now, if the (1-r) is compared with 0.55 given in the function than the value of r will be,
1 - r = 0.55
-r = 0.55 - 1
-r = -0.45
r = 0.45
r = 45%
Hence, y represents a function of exponential decay with 45%.
Learn more about exponential growth and decay here:
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Answer:
12.5cm
Step-by-step explanation:
This triangle is either isosceles or equilateral, we already know two sides.
the other side of the triangle is also 5 cm long because it is also the radius of the shape
the format for finding a right angle triangle like this one is base x height / 2
5 x 5 = 25
25/2 = 12.5
12.5 rounded is 13 because the decimal number is 5 and 5 or higher means we need to round up.
hopefully this helped
-cheesetoasty
Answer: Marble
Step-by-step explanation:
Multiply 3x4x6 and you should get 72. Divide 184.32 by 72 and you should get 2.56 which is marble.
Answer:
so
slope is calculated this way:
let's calculate y init by:
3 = -3×2 + b
b = 9
so equation is:
y=-3x+9
Answer:
Step-by-step explanation:
Ciao, come stai?
1) Per prima cosa, dobbiamo trovare la misura della base più grande. Scomponendo la figura possiamo visualizzare un triangolo e un quadrato. Ci sono somiglianze con gli angoli. Quindi è un triangolo rettangolo. Applichiamo il teorema di Pitagora:
2) Perimetro:
3) L' area
