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UkoKoshka [18]
3 years ago
5

The population of a certain country is approximated by the following equation, where x is the number of years since 1980 and P i

s the population in millions. P= 2.726x + 126.189
Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

235

Step-by-step explanation:

The population equation is given as P= 2.726x + 126.189

-To find the number of years since 1980, we subtract the start year from the current year(2020):

X=2020-1980=40

We substitute the x value in the population equation to find the current population:

P=2.76x+126.189 but x=40

P=2.76(40)+126.189=235.229

Rounding off then the population in the current year is 235

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What is the slope of a line perpendicular to the line whose equation is x + 2y =8.
Mademuasel [1]

Answer:

2

Step-by-step explanation:

First, put the line into y = mx + b form to find the slope (m)

x + 2y = 8

Subtract x from both sides

2y = -x + 8

Divide each side by 2

y = -1/2x + 4

So, the slope of this line is -1/2

Perpendicular lines have a opposite reciprocal slope, so the slope of a perpendicular line will be 2.

6 0
3 years ago
4, 10, 16, 22, 28,...<br> C32,38<br> O32, 40<br> C34, 38<br> C34, 40
Nataly_w [17]

Answer:

the answer is 34, 40

Step-by-step explanation:

10-4=6

16-10=6

22-16=6

28-22=6

28+6=34

34+6=40

8 0
4 years ago
Need some help on my homework can anyone help :P
kati45 [8]

Answer:

Well, first you'd want to isolate your Ys, so that

-3y≤12-2x

&

y≥1-2x


Now they look like your common (y=mx+b) equations, so you should be able to graph from there. I don't quite remember how the shadowing works for inequalities, SO, go to desmos.com, type in the equations, and voila!

8 0
4 years ago
Amount in Account
cluponka [151]

Answer:

The answer would be B

Step-by-step explanation:

Your mean is 602.4, and your median is 609

3 0
3 years ago
A large solar panel can generate power at a maximum rate of 400400400 kilowatts per day. It generates power at a constant rate w
kobusy [5.1K]

For a Cloudy sky , the solar panel requires 80 hours to generate 400 kilowatts per day

For a clear sky the solar panel requires 12.5 hours to generate 400 kilowatts per day.

The solar panel does not exceed its maximum capacity of 400 kilo watts per day because it will generate 207 kilo watts per day.

Step-by-step explanation:

1.Given the inequality for power generated as;

5C+32L≤400 where C is number of hours when sky is cloudy and L is the number of hours when the sky is clear then;

The equation can be written using x and y as

5x + 32 y ≤ 400 -----where x=C and y=L

Graphing the equation on a graph tool for values of x and y that produce maximum capacity,the graph is attached below where x=80 hours and y=12.5 hours.

This means C=cloudy sky = 80 hours and L=clear sky= 12.5 hours

For a Cloudy sky , the solar panel requires 80 hours to generate 400 kilowatts per day

For a clear sky the solar panel requires 12.5 hours to generate 400 kilowatts per day.

2.

Given C=3 hours and L= 6 hours substitute values in the inequality

5C+32L≤400

5*3 + 32*6 ≤ 400

15+192 ≤ 400

207 ≤ 400

The solar panel does not exceed its maximum capacity of 400 kilo watts per day.

Learn More

Inequalities :brainly.com/question/10921764

Keywords: solar panel, power, maximum rate, sky, cloudy, clear,

#LearnwithBrainly

6 0
4 years ago
Read 2 more answers
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