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3 years ago

X^2-24+6=0 Розв’язати квадратне рівняння

Mathematics

1 answer:

user100 [1]3 years ago

3 0

Answer:

X=√18

Step-by-step explanation:

X^2-18=0

X^2=18

X=√18

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The population of Brazil was 162,300,000 in 1995. It was growing at a rate of about 2% per decade. Predict the population, to th

stiv31 [10]

Answer:

The population is 168,900,000 to the nearest hundred thousand

Step-by-step explanation:

In this question, we are tasked with calculating the population of Brazil given its population in 1995 and her growth rate per decade.

Mathematically, we use an exponential function to calculate this population.

This can be written as P = I(1 + r)^n

where P is the population in 2015 which we are looking for,

I is the initial population which is 162,300,000

r is the rate of increase per decade given as 2% = 2/100 = 0.02,

n is the number of times between the years we are expecting this growth. The difference between the years 2015 and 1995 is 20 years which signifies 2 decades(1 decade is 10 years). Thus our n is 2

We plug these values into the equation above;

P = 162,300,000(1+0.02)^2

P = 162,300,000(1.02)^2

P = 168,856,920 which is 168,900,000 to the nearest hundred thousand

7 0

3 years ago

Kelly has a cherry tree in her yard. Currently the tree is 9 feet tall. That is 80% taller than it

lukranit [14]

Answer:

80 percent of 9 is 4/5th of 9, which is 36/5 or 7.2

Hope this helped and brainliest please

6 0

2 years ago

Two fifths of one less than a number is less than three fifths of one more than that number .what numbers are in the solution se

Lelechka [254]

2/5(x - 1) < 3/5(1 + x)

To find the solution, we can use the distributive property to simplify.

2/5x - 2/5 < 3/5 + 3/5x

Multiply all terms by 5.

2x - 2 < 3 + 3x

Subtract 2x from both sides.

-2 < 3 + x

Subtract 3 from both sides.

-5 < x

<h3><u>The value of x is greater than the value of -5.</u></h3>

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3 years ago

Kyle is a satellite radio sales representative. He receives 7% commission on all sales. If

nikklg [1K]

Answer:

24,150

Step-by-step explanation:

7% of 345,000 = 24,150

8 0

3 years ago

How to Answer this i dont know please like it was not in the book im so confused

Marina CMI [18]

The solution to the system of inequalities given is: $\frac{4}{3} \leq y \leq 4$

<h3>What is the solutions to a system of inequalities?</h3>

The solution is the set of values that respect all conditions of the system.

The first condition is:

$3y - 13 \geq -9$

$3y \geq 4$

$y \geq \frac{4}{3}$

The second condition is:

$3y - 13 \leq -1$

$3y \leq 12$

$y \leq \frac{12}{3}$

$y \leq 4$

The intersection of the conditions, which is the solution to the inequality, is:

$\frac{4}{3} \leq y \leq 4$

More can be learned about a system of inequalities at brainly.com/question/3656398

#SPJ1

5 0

2 years ago