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2 years ago

Please help! I will give out brainlist.

Mathematics

1 answer:

Ainat [17]2 years ago

7 0

Answer:

Step-by-step explanation:

This is a Pythagorean Theorem Question

c^2 = a^2 + b^2

c= sqrt(5)

a = x

b = x This is an isosceles right triangle. The vertical side and the horizontal side are equal.

x^2 + x^2 = sqrt(5)^2

2x^2 = 5 Divide both sides by 2

x^2 = 5/2 Take the sqrt of both sides.

√x^2 = √5 / √2 Multiply right side by √2 on both top and bottom

x = √5*√2 / √2*√2

x = √10 /2

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The population of a city is 250,000 and the annual growth rate is 2.2%. Write an equation to model the population y after x year

Zinaida [17]

Answer:

$y= 250000(1.022)^x$

Step-by-step explanation:

The population of a city is 250,000 and the annual growth rate is 2.2%

General equation for exponential growth is

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

Where y is final population and P is the initial population

'r' is the rate of growth and x is the number of years

p = 25000 and r= 2.2%= 0.022. Replace all the values in the general equaiton

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

$y= 250000(1.022)^x$

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2 years ago

Gre4nikov [31]

Answer:

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2 years ago

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2 years ago

Read 2 more answers

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damaskus [11]

Answer: The extra-size chart

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Step-by-step explanation:

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2 years ago

The line through (5, 7) and (1, - 5)

lbvjy [14]

Answer:

Hey there!

Slope of the line: $\frac{y2-y1}{x2-x1}$

Slope of the line: $\frac{12}{4}$ , which is equal to 3.

Point slope form: y2-y1=m(x2-x1)

Point slope form: y-7=3(x-5)

Y intercept form: y-7=3x-15

Y intercept form: y=3x-8

Let me know if this helps :)

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2 years ago