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julia-pushkina [17]
3 years ago
10

Which represents the area of ABC ?

Mathematics
2 answers:
disa [49]3 years ago
5 0

A = \frac{1}{2} bc(sin A)

ICE Princess25 [194]3 years ago
5 0

Answer:

A) 1/2(bc sinA)

Step-by-step explanation:

the area of ABC is : 1/2 (h ×AC)

but : AC = b

sinA = h/c    so : h = c sinA

the area of ABC is : 1/2 (c sinA×b ) = 1/2(bc sinA)


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If the measure of angle is 38 what is the measure of its complement
iragen [17]
90-38 =52 answer is 52
8 0
3 years ago
what is thelenght and width of a rectangle that had an area of 18 square Ubuntu and a perimeter of 18 units ?
Kazeer [188]

Answer:

Length=6

Width=3

Step-by-step explanation:

Area:L*W

Area= 6*3=18

Perimeter: 2 (L+W)

Perimeter= 2 (6+3)= 12+6=18

6 0
3 years ago
Write a linear function F with the values F(-9)=8 and F (0) =1
Fiesta28 [93]

Given:

The values of a linear function are F(-9)=8 and F(0)=1.

To find:

The linear function.

Solution:

If a linear function passes through two points, then the equation of the linear function is:

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

The values of a linear function are F(-9)=8 and F(0)=1. It means the function passes through the points (-9,8) and (0,1). So, the equation of the linear function is:

y-8=\dfrac{1-8}{0-(-9)}(x-(-9))

y-8=\dfrac{-7}{9}(x+9)

y-8=\dfrac{-7}{9}(x)+\dfrac{-7}{9}(9)

y-8=\dfrac{-7}{9}x-7

Adding 8 on both sides, we get

y-8+8=\dfrac{-7}{9}x-7+8

y=\dfrac{-7}{9}x+1

Putting y=F(x), we get

F(x)=\dfrac{-7}{9}x+1

Therefore, the required linear function is F(x)=\dfrac{-7}{9}x+1.

5 0
3 years ago
5. El valor de un producto bancario es de 15€. El lunes sube un 3%, el martes baja un 7% y el miércoles sube un 10%. ¿Con qué va
Alenkinab [10]

Answer:

El valor con el que comienza el jueves es 15.80535. El porcentaje de aumento desde el lunes es 5.369%

Step-by-step explanation:

Consideremos una cantidad x de un producto bancario, al multiplicar x por el factor (1+k%) implica un cambio de k% en el valor x. Si decimos que aumentó el valor de x, entonces k es positivo y si decimos que baja el valor de x, entonces tomamos k negativo.

Para comenzar, tenemos que x = 15. El valor con el que inicia el martes está dado por 15*(1+3%). Para calcular en cuánto comienza el miércoles, multiplicamos este valor por (1-7%). Es decir, 15*(1+3%)*(1-7%).

Finalmente, calculamos el valor inicial al jueves multiplicando por (1+10%).

Es decir,q ue el valor inicial el jueves es

15\cdot (1+3\%)\cdot(1-7\%)\cdot(1+10\%)= 15.80535

Para calcular el porcentaje de aumento con respecto al lunes, dividimos este valor por el costo inicial (15). POsteriormente, restamos 1 al resultado y lo multiplicamos por 100 (así nos da un porcentaje). Si el resultado final es positivo, es un aumento, y si es negativo es una disminución. En este caso el porcentaje es

(\frac{15.80535}{15}-1)\cdot 100 = 5.369\%

6 0
3 years ago
Which of the following best describes the change in the mean when 1213 is included in the data set below?
Kruka [31]

Answer:

Step-by-step explanation:

Given in the data set as

26, 34, 38, 49, 65, 76, 81

Sum = 369

No of entries = 7

Mean =52.71

When 1213 is included

New sum = 1582

No of entries =8

New mean = 197.75

Thus mean increases by 145.04

5 0
4 years ago
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