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3 years ago

Which equation describes this line?

Mathematics

2 answers:

kvasek [131]3 years ago

7 0

Answer:

I think it's c but I'm not 100 percent sure

iren2701 [21]3 years ago

3 0

Answer:

y - 9 = 2(x - 1).

Step-by-step explanation:

The slope of the line = (9-3)/(1 -(-2))

= 6/3 = 2

Using the point slope form of the equation of a line:

y - y1 = m(x - x1) where the slope m = 2 and (x1, y1) = (1, 9):

y - 9 = 2(x - 1).

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Which expression completes the identity cos u sin v = ?

Lilit [14]

The product of trigonometric functions can be converted into sum ans vice versa. The given function is a product and we can convert it to a sum.One way is to expand the given expression and simplify it to find the result.

The second and easier option is to just remember the formulas of product to sum conversion identities. The 4 formulas for this case are listed below in the image.

Since we have the product of cos and sin, the sum will involve two sine functions connected by addition.

So the correct answer is option A

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2 years ago

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konstantin123 [22]

Answer:

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Step-by-step explanation:

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3 years ago

Identify the linear coefficient of the product<br> (7x- 4) (3x + 11)

marusya05 [52]

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2 years ago

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Kazeer [188]

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6 0

3 years ago

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