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DochEvi [55]
3 years ago
14

Evaluate the expression 81 - 8 to the power of 2 ​

Mathematics
2 answers:
lisabon 2012 [21]3 years ago
8 0

Answer:

17

Step-by-step explanation:

docker41 [41]3 years ago
7 0

Answer:

81-8^2=17

Step-by-step explanation:

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3 years ago
What is the simplest form of 3^ √27t^9/729?
Natali [406]

Answer:

\frac{t^{3} }{3}

Step-by-step explanation:

\sqrt[3]{\frac{27t^{9} }{729} } 27 is a perfect cube for 3^{3} and 729 is a perfect cube for 9^{3}

\sqrt[3]{\frac{3^{3} t^{9} }{9^{3} } }  now you can pull out the numbers from under the root, for t (divide the exponent by 3)

\frac{3}{9}t^{3} now simply to \frac{t^{3} }{3}

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3 years ago
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Evaluate 81.4 % of 58.81 km Give your answer rounded to 2 DP.
snow_lady [41]

Answer:

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3 years ago
Ana compró una cartera cuyo precio original es de x dólares con el 10% de descuento y un perfume con precio original de B dólare
katovenus [111]

Answer:

Tarea:

Ana compró una cartera cuyo precio es x dólares con el 10% de descuento y un perfume con precio original en dólares con un descuento del 15%. ¿Cuánto gastó Ana en total?

- Solución:

El precio estará en lenguaje algebraico, ya que no nos dan el dato de cuánto costó cada artículo.

• Hallamos el precio de la cartera con el descuento:

El precio original es x, entonces:

Regla de tres:

100 % --------> x

10 % -----------> ?

10 . x : 100 = ?

10x/100 = ?

El 10% del precio de la cartera es 10x/100.

Entonces el precio de la cartera es (x-10x/100).

• Hallamos el precio del perfume con el descuento:

El precio original es y, entonces:

Regla de tres:

100% -------> y

15 % --------> ?

15.y/100

El 15% del perfume es 15y/100.

Entonces el precio del perfume con el descuento es (y-15y/100).

Entonces lo que gastó en total es:

(x - 10x/100) + (y - 15y/100)

Step-by-step explanation:

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7 0
3 years ago
Which expression is equivalent to 18s+9t+36
tatuchka [14]

18(s+t/2+2)

18(s+t/2+2)

8 0
3 years ago
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