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nydimaria [60]
3 years ago
5

Help please :) much appreciated

Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0

Answer:

x^2 +2x -5

Step-by-step explanation:

f(x) = 2x+3

g(x) = x^2 -8

f(x)+g(x) =  2x+3+ x^2 -8

Combine like terms

             = x^2 +2x -5

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Evalute<br> - 4x<br> when x=9
Paladinen [302]

Answer:

If x=9 then you have to multiply -4 *9. -4*9= -36. Good luck!

Step-by-step explanation:

6 0
3 years ago
Decrease 950 by 36%.
horsena [70]

Answer:

342

Step-by-step explanation:

950×0.36=342.....

6 0
3 years ago
Read 2 more answers
6. Complete la tabla con el número 4.956: Dígito Valor posicional Notación estándar Notación en potencia De esta forma el número
Rzqust [24]

Answer:

6. Miles  {}     cientos       decenas      unidades

  4   {}              9                5               6

7. Catalina podrá hacer un cuadrado con longitud lateral de 4 cartones

8. 45000000 = 4.5 × 10⁶

0.000000000000056 = 5.6 × 10¹⁴

0.000000000034 = 3.4 × 10¹¹

Step-by-step explanation:

6. Los valores posicionales de dígitos son;

Miles  {}     cientos       decenas      unidades

4   {}              9                5                   6

 

7. El número de cuadrados que tiene Fernando = 12

El número de cuadrados que tiene Catalina = 16

El largo y el ancho de un cuadrado son iguales, por lo tanto tenemos;

largo × ancho = Área del cuadrado

largo = ancho = lado del cuadrado

Lado del cuadrado × Lado del cuadrado = Área del cuadrado

(Lado del cuadrado) ² = Área del cuadrado

Lado del cuadrado = √ (Área del cuadrado)

Para Fernando, Área del cuadrado = 12

Lado del cuadrado para Fernando = √12 = 2 · √3 cartones

Para Catalina, Área del cuadrado = 16

Lado del cuadrado para Catalina = √16 = 4 cartones

Por tanto, Catalina podrá realizar un cuadrado con longitud lateral de 4 cartones

8. 45000000 = 4.5 × 10⁶

0.000000000000056 = 5.6 × 10¹⁴

0.000000000034 = 3.4 × 10¹¹

8 0
3 years ago
Need help with this problem
Romashka-Z-Leto [24]

3x = 4x + 2

-4x  -4x

-1x = 2

----  -----

-1      -1

x = -2

Check:

3(-2) = 4(-2) + 2

-6 = -8 + 2

-6 = -6

4 0
3 years ago
PLEASE HELP ME RIGHT ANSWERS ONLY Your gas-powered weed trimer has a tank that holds 0.72 gallons. If you burn 0.13 gallons ever
sergeinik [125]

Answer:

sorry I don't understand your question

8 0
3 years ago
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