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3 years ago

I need help with this geometry problem. find the perimeter of the semi-circle

Mathematics

1 answer:

alexgriva [62]3 years ago

6 0

Answer:

Step-by-step explanation:

Circumference entire circle woule be d·π, with diameter d=5m.

Now we only have half of that, and we must add the straight line that closes the figure.

perimeter = 5·π/2 + 5 ≈ 12.85

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pychu [463]

Answer:

can i see the answers

Step-by-step explanation:

5 0

3 years ago

How would I solve this? i know how to solve easier variations but not like this the question is:

IRISSAK [1]

The linear function with values of f(-1)=8 and f(5)=6 is f(x) = $\frac{-x+23}{3}$ .

What is linear function?

A straight line on the graph has the equation or formula y = f(x) = px + q is linear function .One independent and one dependent variables are present. X and Y are the independent and dependent variables, respectively. P is the y-intercept or constant term, and it also represents the value of the dependent variable. A straight line on the coordinate plane is represented by a linear function.

Here the given values are f(-1)=8 and f(5)=6.

We know that f(x)=y , Then the points are (-1,8) and (5,6).

Using slope formula ,

=> slope m= $\frac{y_2-y_1}{x_2-x_1}$

=> slope m = -2/6=-1/3

Now using slope formula,

=> $y-y_1=m(x-x_1)$

=>y-8=-1/3(x+1)

=>3y-24=-x-1

=> 3y=-x+23

=> y = $\frac{-x+23}{3}$

Hence the linear function is f(x) = $\frac{-x+23}{3}$ .

To learn more about linear function refer the below link

brainly.com/question/28899900

#SPJ9

6 0

1 year ago

BRAINLIEST!!!<br> 12. Determine whether each pair of functions are inverse functions.

denpristay [2]

Answer:

The answer is 2nd point

Step-by-step explanation:

In this question, inverse of f(x) is equals to g(x). First, you must know how to find the inverse of f(x). In order to find the g(x), you must let f(x) = y and make x thd subject :

Let y = (10x+9)/8

y = (10x+9)/8

8y = 10x + 9

8y - 9 = 10x

(8y-9)/10 = x

x = (8y-9)/10

g(x) = (8x-9)/10 (Remember to convert y back to x)

Let y = x - 9

y = x - 9

y + 9 = x

x = y + 9

g(x) = x + 3

Next, by looking in no.1, the inverse of f(x) is wrong and in no.2, it shows the correct form of inverse. So only 2 is an inverse function

4 0

3 years ago

Maria necesita un par de zapatos de tacon para un evento de gala y ya vio tres pares que le gustaron mucho cada uno cuesta $500,

Art [367]

Answer:

Mária debe trabajar mínimo 9 horas si quisiera tener la cantidad para pagar cualquiera de los pares de zapatos.

Step-by-step explanation:

Tenemos que calcular la cantidad de horas que tiene que trabajar María para alcanzar la cantidad de dinero necesaria para comprar alguno de los pares. La cantidad de dinero que Mária gana por trabajar x horas es 50.50*x. La cantidad total de dinero que tiene María está dada por 200+50.50*x (se le suma la cantidad que tiene ahorrada). Luego, basta con que esta cantidad sea mayor o igual al precio de cada par de zapatos.

Para hacerlo de manera más general, considerando unos zapatos que cuestan y, tenemos la siguiente inecuación

$200+50.5x \geq y$