All categories

3 years ago

State whether the equation represents exponential growth, exponential decay, or neither. y=2*0.68^x

Mathematics

2 answers:

faltersainse [42]3 years ago

8 0

an exponential equation will look like

y = a(b)ˣ

now, the tale-tell guy is the "b" component, or growth/decay factor.

if "b" is less than 1, is decay, if "b" is greater than 1, is growth.

in this case b = 0.68, that's less than 1, so decay.

VladimirAG [237]3 years ago

5 0

Answer:

y=2*0.68^x = exponential decay

Step-by-step explanation:

You might be interested in

Rewrite the function by completing the square. f(x) = x2 – 10x + 44 + f(x) = (x+

iVinArrow [24]

Answer:

$f(x)=(x-5)^{2}+19$

Step-by-step explanation:

we have

$f(x)=x^{2}-10x+44$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-44=x^{2}-10x$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$f(x)-44+25=x^{2}-10x+25$

$f(x)-19=x^{2}-10x+25$

Rewrite as perfect squares

$f(x)-19=(x-5)^{2}$

$f(x)=(x-5)^{2}+19$

8 0

3 years ago

-9 *-9 = What is the answer to this question

poizon [28]

Answer:

+81

Step-by-step explanation:

neg times a neg = a positive

3 0

3 years ago

Read 2 more answers

You have a biased coin for which p(h)=pp(h)=p. you toss the coin 2020 times. what is the probability that you observe 88 heads a

Nat2105 [25]

The question describes a binomial probability with p(h) = p, then p(t) = 1 - p and number of trials (n) = 20

The probability of a binomial distribution is given by

$P(x)=\, ^nC_xp^x(1-p)^{n-x}$

Part A:

The probability of observing 8 heads and 12 tails is given by:

$P(8)=\, ^{20}C_8p^8(1-p)^{20-8}=\, ^{20}C_8p^8(1-p)^{12}$

Part B:

You observe more than 8 heads and more than 8 tails, when you observe 9 heads and 11 tails, 10 heads and 10 tails, and 11 heads and 9 tails.

Therefore, the probability of observing more than 8 heads and more than 8 tails is given by:

$P(9)+P(10)+P(11) \\ \\ =\, ^{20}C_9p^9(1-p)^{20-9}+\, ^{20}C_{10}p^{10}(1-p)^{20-10}+\, ^{20}C_{11}p^{11}(1-p)^{20-11} \\ \\ =\, ^{20}C_9p^9(1-p)^{11}+\, ^{20}C_{10}p^{10}(1-p)^{10}+\, ^{20}C_{11}p^{11}(1-p)^{9}$

7 0

2 years ago

What is the radius of 28??

olganol [36]

The radius is 14, if the diameter is 28. The radius is half of the diameter

7 0

2 years ago

23f in verbal expression

adell [148]

23f in verbal expression"twenty-three f".

4 0

2 years ago