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2 years ago

Can someone help me with this I'm stuck

Mathematics

1 answer:

Strike441 [17]2 years ago

7 0

Answer:

you got to subtract 4 from 1

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At the start of the year, 15 chameleons were introduced into a zoo. The population of chameleons is expected to grow at a rate o

bearhunter [10]

Answer:

option-B

Step-by-step explanation:

We are given

At the start of the year, 15 chameleons were introduced into a zoo

so, $P_0=15$

The population of chameleons is expected to grow at a rate of 41.42% every year

so, r=0.4142

and x represents the number of years since the chameleons were introduced into the zoo

now, we can set equation to find total population

and we get

$P(x)=P_0(1+r)^x$

now, we can plug values

$P(x)=15(1+0.4142)^x$

$P(x)=15(1.4142)^x$

Average rate of change between 2 years and 4 years:

we can use formula

$A_1=\frac{P(4)-P(2)}{4-2}$

now, we can plug values

$A_1=\frac{15(1.4142)^{4}-15(1.4142)^{2}}{4-2}$

$A_1=14.99914$

Average rate of change between 4 years and 6 years:

we can use formula

$A_2=\frac{P(6)-P(4)}{6-4}$

now, we can plug values

$A_2=\frac{15(1.4142)^{6}-15(1.4142)^{4}}{6-4}$

$A_2=29.99770$

Average rate of change between 6 years and 8 years:

we can use formula

$A_3=\frac{P(8)-P(6)}{8-6}$

now, we can plug values

$A_3=\frac{15(1.4142)^{8}-15(1.4142)^{6}}{8-6}$

$A_3=59.99425$

now, we will check each options

option-A:

we can see that

$A_3-A_2=30$

So, this is FALSE

option-B:

$A_1=\frac{1}{2}A_2$

So, this is TRUE

option-C:

This is FALSE

option-D:

we got

$A_1=\frac{1}{2}A_2$

so, this is FALSE

5 0

3 years ago

Which equation has the same solution as 7x - 14 = 21?

Kryger [21]

Answer: 7 x 3 = 21

Step-by-step explanation:

6 0

4 years ago

a culture started with 2000 bacteria. after 4 hours it grew to 2200. predict how many bacteria will be present after 9 hours. ro

Sati [7]

First you will divide;
200÷4=50
Then you multiply;
50×9=450
Last you add;
2000+450=2450

4 0

3 years ago

Read 2 more answers

3. Mary bought a pair of speakers for $400. The following year, her friend bought the same speakers for $310.

anyanavicka [17]

Answer:

Step-by-step explanation:

take 400 multiply by 77.5% = 310

7 0

3 years ago

Given the equation = −3/5 + 2a. State the slope__________b. State the y intercept____________c. Is the line increasing or decrea

Ann [662]

Answer

a. -3/5

b. (0,2)

c. The line is decreasing.

Explanation

In this form, the number that accompanies the x correspond to the slope and the value of the independent number to the y-intercept.

The line is decreasing because the slope is negative.

8 0

1 year ago

Can someone help me with this I'm stuck​

Can someone help me with this I'm stuck