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3 years ago

8.9 – 1.4x + (–6.5x) + 3.4

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

12.3 – 7.9x

Step-by-step explanation:

the product of + and - is -

Therefore,

8.9 – 1.4x + (–6.5x) + 3.4

= 8.9 – 1.4x –6.5x + 3.4

collect like terms

= – 1.4x – 6.5x + 3.4 + 8.9

= –7.9x + 12.3

= 12.3 – 7.9x

Sphinxa [80]3 years ago

3 0

8.9 + 3.4 -1.4x - 6.5x = 12.3 - 7.9x

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Answer:

The answer to your question is:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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Which of the following can be used to calculate the volume of water inside the fish bowl?

Lunna [17]

The volume of a sphere can be calculated as

$V=\frac{4}{3}\pi r^3$

Where r is the radius of the sphere

We want to calculate half of the volume, then we must divide that volume by 2

$V^{\prime}=\frac{1}{2}\frac{4}{3}\pi r^3$

Now we must find the radius of our sphere, the segment AB is the diameter of the sphere, and the radius is half od the diameter, then

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Let's put it into our equation

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The problem says to use

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Then

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Final answer:

The formula that can be used to calculate the volume of water inside the fish bowl is

$V=\frac{1}{2}\left(\frac{4}{3}\right)\left(\frac{22}{7}\right)(6)^3$

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