3 years ago

What is the Value of x?

Mathematics

1 answer:

Vilka [71]3 years ago

6 0

Answer:

x equals 3

Step-by-step explanation:

2x - 7 = 13

2x = 6

x = 3

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Find the error (-8x^2y^2)^2= -64x^4y^4

ExtremeBDS [4]

Answer:

$(-8)^2\neq-64$

Step-by-step explanation:

Using the distributive property to expand, we have

$(-8x^2y^2)^2=(-8)^2(x^2)^2(y^2)^2.$

Squaring each term, we have

$(-8x^2y^2)^2=64x^4y^4.$

The mistake was that $8^2=64,$ not $-64.$ Using the fact that $8^2=64,$ the right answer would be

$\boxed{64x^4y^4}$ .

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2 years ago

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P. John roller skates with a constant

Vitek1552 [10]

Answer:

2 1/2 hours

Step-by-step explanation:

1. multiply 12 by 2 to get 24

2. divide 12 by 2 to get 6 mph (miles per hour)

3. Add the 6 and 24

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4 years ago

Please help me with this -2(z-3.2)-6.5+z

Yuki888 [10]

Answer:

-Z-18

Step-by-step explanation:

-2z+12-30+z

=-z-18

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4 years ago

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Please solve with work

LenaWriter [7]

Answer:

Ok please solve with work

Step-by-step explanation:

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3 years ago

The circumfrence of a ball is 60cm. The ball rolls 16.2m. How many times does the ball make one complete roll?

valentinak56 [21]

$1 roll=circumference$

$\frac{distance}{circumference} =rolls$

$\frac{16.2m}{60cm} =rolls$

$\frac{(16.2*100)cm}{60cm} =rolls$

$\frac{1620cm}{60cm} =rolls$

$27 = rolls$

$27times$

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4 years ago