All categories

2 years ago

Plz Heeeeelp! 25 POINTS! I'm so desperate I made two of these worth 25 points!

Mathematics

2 answers:

vekshin12 years ago

8 0

Answer:

The answer is B, f(x)=5(2/5)^(z)

Step-by-step explanation:

I did the graphs for all of them and graph B was identical to the one in the picture.

alexandr1967 [171]2 years ago

6 0

Answer:

(b) f(x) = 5(2/5)^x

Step-by-step explanation:

All of the offered choices agree that the multiplier of the exponential factor is 5. When x=1, the exponential factor must have a value of 2/5 in order to make the function value be 2 at that point.

That is, ...

f(1) = 5(2/5)^1 = 5(2/5) = 2

You can get there either by using x=1 in each of the offered answer choices, or by observing that the ratio between f(1) and f(0) is 2/5.

f(x) = 5(2/5)^x

You might be interested in

Help guys with this question

blondinia [14]

Answer:

the answer is 1/2!!

Step-by-step explanation:

Good luck at that quiz izz!

Hope this helps! :)

8 0

1 year ago

Read 2 more answers

4y-x<br> 3(2x+y)<br> when x = -3 and y = 3

yan [13]

Step-by-step explanation:

4×3-(-3)=12+3=15

3(2×(-3)+3)=3(-6+3)=(3×(-3)=-9

6 0

2 years ago

In a survey of 2264 adults, 729 say they believe in ufos. construct a 95 confidence interval for the population proportion of ad

Andreyy89

90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the giver confidence interval [ 0.3026, 0.3348 ].

Here, we have given:

Number of adults (n) = 2272

Number of adults who believe in UFO (x) = 724

Sample proportion (p) = x/n

p = 724 / 2272

p = 0.3187

now, let q = 1 - p

q = 1 - 0.3187

q = 0.6813

Confidence level → 90%

The 90% confidence interval for population proportion is

$[ p - 1.645\frac{\sqrt{pq} }{\sqrt{n}} ,p + 1.645\frac{\sqrt{pq} }{\sqrt{n}} ]$

where 1.645 is Zac value at 90% confidence level.

$p - 1.645\frac{\sqrt{pq} }{\sqrt{n}}$ = 0.3187 - 0.0161 = 0.3026

$p + 1.645\frac{\sqrt{pq} }{\sqrt{n}}$ = 0.3187 + 0.0161 = 0.3348

90% confidence interval for the population proportion is

[ 0.3026, 0.3348 ]

Hence, With 90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the giver confidence interval [ 0.3026, 0.3348 ]

Learn more about " Population Proportion " from here: brainly.com/question/15087042

#SPJ4

5 0

1 year ago

Please help!!<br> What is the measure of angels DEF and angles DEG?

Novay_Z [31]

47+ 30 is 77 so def is 77 and 103 is deg. and

8 0

2 years ago

6. Enrico is filling his pool. The pool has 3,000 gallons of water in it now. The water hose that Enrico uses puts 500 gallons p

xenn [34]

Answer:

y=500x+3000

the Y intercept is 3,000

Step-by-step explanation:

In this equation y represents the total gallons of water in the pool the 500 represents the water that goes into the pool in an hour. X represents the number of hours and 3000 represents the water that was already in there.

7 0

2 years ago