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3 years ago

Multiply. (4y+6)(3y2 - 2y+5) Simplify your answer.

Mathematics

2 answers:

vivado [14]3 years ago

8 0

Answer:

<em>Hope it helps ... Have a nice day </em>

Step-by-step explanation:

$(4y+6)(3y^{2} y-2y+5)\\12y^{3} -8y^{2} +20y+18y^{2} -12y+30\\12y^{3}+10y^{2} +8y+30$

navik [9.2K]3 years ago

5 0

16y^2+44y+30 that is the answer because if you remove the parentheses you will get

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What is 658 divided by 72?

SIZIF [17.4K]

Answer:

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Step-by-step explanation:

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3 years ago

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What’s 2-3-4-4+7. Plzzzz

nignag [31]

Answer:

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Step-by-step explanation:

Simplify the following:

2 - 3 - 4 - 4 + 7

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3 years ago

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3 years ago

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3 years ago

Mr. Schordine wants to fill up enough helium balloons to allow him to fly through the skies. He weighs 84 kilograms. He knows th

Cerrena [4.2K]

Answer:

There is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.

Step-by-step explanation:

First, we need to calculate the volume of each balloon by considering the balloons as a sphere:

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

Where:

r: is the radius = 0.4 meters

$V = \frac{4}{3}\pi r^{3} = \frac{4}{3}\pi (0.4 m)^{3} = 0.27 m^{3}$

Knowing that 1 m³ of helium is able to lift about 1 kg, that Mr. Schordine weights 84 kg, and that each ballon has 0.27 m³ of helium, the number of balloons needed are:

$N = \frac{1 m^{3}}{1 kg}*84 kg*\frac{1 balloon}{0.27 m^{3}} = 311.1 \: balloon$

Therefore, there is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.

I hope it helps you!

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3 years ago