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2 years ago

(-64)^(1/2) evaluated?

Mathematics

2 answers:

nikitadnepr [17]2 years ago

5 0

Answer:

Step-by-step explanation:

Simplify the expression.

Rewrite 64 as 8^2

Apply the power rule and multiply exponents, (am^)n = a^mn

8^2(1/2)

Cancel the common factor of 2

Rewrite the expression.

8^1

Evaluate the exponent.

Hope that helps!

bazaltina [42]2 years ago

3 0

Answer:

Step-by-step explanation:

When a quantity is raised to a fractional power, you need to root it to the power of the denominator.

For example, (-64)^(1/2) = √(-64) 

Since you are taking the root of a negative, you will need to put an i (imaginary) in your answer.

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2 years ago

how many bricks can my truck carry in a full load if each brick weighs 4 pounds 14 ounces and my truck can carry a 3/4 ton load

aleksklad [387]

Answer:

The number of bricks a truck can carry in full load is 308 .

Step-by-step explanation:

Given as :

The weight of each brick = 4 pounds and 14 ounce

The total load a truck can carry = $\dfrac{3}{4}$ tons

Let The number of bricks truck can carry = n bricks

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∵ 1 ounce = 0.0625 pounds

∴ 14 ounce = 0.0625 × 14 = 0.875 pounds

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Now, Again

The total load a truck can carry = $\dfrac{3}{4}$ tons = 0.75 tons

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So, The number of bricks = $\dfrac{\textrm total load a truck can carry}{\textrm Total weight of each brick}$

I.e n = $\dfrac{0.75}{0.0024375}$

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3 years ago