3 years ago

Y=0.8(2.1)^x does that equation represents exponential decay or exponential growth?

1 answer:

8 0

That represents exponential growth because we are multiplying by 2.1 every time. Since you are multiplying by a number greater than 1 that means that the number is getting bigger as x gets bigger. This means that we have exponential growth.

You might be interested in

Which of the following are solutions to the quadratic equation? Check all that

Vedmedyk [2.9K]

Answer:

C and E

Step-by-step explanation:

Factor it so you get

(x-2)(x+5)=0

Then find x

x=-5

x=2

7 0

3 years ago

I need the answer to the question on the image

bekas [8.4K]

Answer:

x should equal 10 because 10 divide by -5 would equal -2

4 0

2 years ago

A student takes an 18-question, multiple-choice exam with five choices for each question and guesses on each question. Assume th

Kobotan [32]

Answer:

Probability of getting at least 9 out of 18 correctly is 0.0043

Step-by-step explanation:

We have

n = 18

p = 1/5 for correct answer

q = 4/5 for wrong answer

P( 9 $\leq$ X $\leq$ 18) = 1 - P(0 $\leq$ X $\leq$ 8)

= 1 - 0.9957

=0.0043

7 0

3 years ago

Romeo is chucking pebbles gently up to Juliet's window, and he wants the pebbles to hit the window with only a horizontal compon

Genrish500 [490]

Answer:

4.45 m/s

Step-by-step explanation:

Vertical distance, Sy = 5m

The speed of pebble when they hit her window :

Vx = Sx / t

We can obtain t using the relation :

Sy = 1/2 * at²

Where, a = acceleration due to gravity = 9.8m/s²

We can obtain t

5 = 1/2 * 9.8 * t²

5 = 4.9t²

t = √5/4.9

t = 1.01 seconds

Hence,

Speed, Vx = Sx / t

Vx = 4.5 / 1.01

Vx = 4.45 m/s

6 0

3 years ago

Expand the following. In other words, remove the parentheses (brackets):

Nina [5.8K]

Answer:

I believe that it would be A.

But answer A should be $3a + ab - a^{2}$

Step-by-step explanation:

3 0

3 years ago