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2 years ago

Use the distributive properly to remove the parentheses. -(4w-y-3)

Mathematics

1 answer:

Brrunno [24]2 years ago

7 0

-4w+y+3 is the correct answer

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Given: HF = HJ.FG = JK. H is the midpoint of GK. Prove: AFGH 2 AJKH G H K

Svetlanka [38]

Answer:

Well, make brainlist okay

1) FH = JH ( GIVEN) Side

2) FG = JK (GIVEN) side

3) GH = HK ( MIDPOINT) side

AND BOOM

FGH = JKH ( from SSS, mention eq)

S mean side

5 0

3 years ago

Ayudemen porfavor . Determine 4 ala potencia x + 4 ala potencia -x, si se sabe que 2ala potencia x + 2 ala potencia -x =3

Afina-wow [57]

Answer:

Es igual a 7.

Step-by-step explanation:

Ok, sabemos que:

$2^x + 2^{-x} = 3$

Queremos calcular:

$4^x + 4^{-x}$

Tambien sabemos que 4 = 2*2

Entonces:

$4^x + 4^{-x} = (2*2)^x + (2*2)^{-x}$

y sabemos que 2*2 = 2^2

Entonces:

$4^x + 4^{-x} = (2*2)^x + (2*2)^{-x} = (2^2)^x + (2^2)^{-x}$

y ahora podemos usar la relación:

$(a^n)^m = (a^m)^n = a^{m*n}$

entonces:

$(2^2)^x + (2^2)^{-x} = (2^x)^2 + (2^{-x})^2$

Ahora podemos completar cuadrados sumando y restando el termino:

$2*(2^x)*(2^{-x})$

Asi tendremos:

$(2^x)^2 + (2^{-x})^2 = (2^x)^2 + (2^{-x})^2 + 2*(2^x)*(2^{-x}) - 2*(2^x)*(2^{-x}) = (2^x + 2^{-x})^2 - 2*(2^x)*(2^{-x})$

Entonces de momento tenemos que:

$4^x + 4^{-x} = (2^x + 2^{-x})^2 - 2*(2^x)*(2^{-x})$

Sabemos que el termino que esta dentro del parentesis es igual a 3.

Y tambien podemos usar la propiedad:

$a^n*a^m = a^{n + m}$

en el termino de la derecha.

Asi tendremos:

$(2^x + 2^{-x})^2 - 2*(2^x)*(2^{-x}) = (3)^2 - 2*2^{x + (-x)} = 9 - 2 = 7$

7 0

2 years ago

Find value of x 4(x+6)° (5x+11)°

Evgesh-ka [11]

Value of x = 13°

Hope it helps you...

5 0

2 years ago

Help! :( It’s in the pic :3

Harlamova29_29 [7]

Answer:

$\frac{3}{2}$

Step-by-step explanation:

3 0

3 years ago

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Sami ordered 132 dresses for her store . What is 132 rounded to the nearest ten?

Yuki888 [10]

130 because 2 is less than 5

3 0

2 years ago