Pablo simplified the expression (2 Superscript negative 4 Baseline) Superscript negative 2 as shown.

Mathematics

1 answer:

Lady_Fox [76]2 years ago

7 0

Answer:

<h3>He should have found 8 as the exponent, not –8.</h3>

Step-by-step explanation:

Given the expression simplified by Pablo as $(2^{-4})^{-2}$

On simplification we have;

According to one of the law of indices $(a^{m})^{n} = a^{mn}$

Applying this law to the question will give;

$(2^{-4})^{-2}\\=2^{-4*-2} \\\= 2^{8}$

Based on the calculation above, the exponent of 2 is 8 which means that Pablo should have found 8 as the exponent, not –8.

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2 years ago

At Greenwood Landscaping, rock costs $47.50 per ton. How much would 2.5 tons cost?

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Answer:

Hey!

Your answer is $118.75!

Step-by-step explanation: How did I get this?

STEP 1: So we know that for a ton of rock costs us $47.50...

To get 2 tons all we have to do is to MULTIPLY $47.50 by 2...

(47.50 x 2 = 95)

STEP 2: So for $95, you will get 2 tons of rock!

Now to get the .5 tons of rock in price form, we have to get the price of the whole 2.5 tons and DIVIDE BY 2

(47.50 ÷ 2 = 23.75)

STEP 3: So now we have the costs for 2 tons and the price for HALF a ton.

What we do now is easy...we ADD THE VALUES TOGTHER!

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I HOPE THIS HELPED YOU!

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2 years ago

A brand new filled jar of salsa is 11 cm tall and a has a radius of 6 cm. Kelly eats some of the salsa and the salsa in the jar

Sonbull [250]

Before we begin please note that a jar is always cylindrical in shape if not mentioned otherwise. Thus, we will take a cylindrical jar in this case.

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To find the missing volume on the Salsa jar all that we need to do is to find the height of the missing volume which is given to us as h= 6 cm. We already know that the radius of the jar, r=6 cm. Thus, the amount of Salsa Kelly has eaten is:

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