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3 years ago

PLEASEEE HELP ME I NEED THIS ASAP

Mathematics

2 answers:

Pavel [41]3 years ago

6 0

Answer:

The fourth option is the correct answer

Step-by-step explanation:

The given expression is

-2n(5+n-8-3n)

Given that n=3,We substitute the value of n into the expression and simplify.

This implies that,

-2n(5+n-8-3n)=-2(3)[5+3-8-3(3)]

=-6(5+3-8-9)

=-6(-9)

=54

Hence the answer is 54

mina [271]3 years ago

3 0

The correct answer is 54

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Two forty- four plus what equals two sixty-nine

Pavlova-9 [17]

Assuming you mean 244+?=269, the answer is 25. Hope this was right

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3 years ago

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The table lists several points that form a line on a coordinate plane.

omeli [17]

Answer:

Slope is 1/4 (0.25) while y-intercept is 5

Step-by-step explanation:

Here, we are interested in getting the y intercept and slope of the line joining the given points.

We can get the slope by using any two points

Let’s say (4,6) and (12,8)

Mathematically; slope

= (y2-y1)/(x2-x1) = (8-6)/(12-4) = 2/8 = 1/4 = 0.25

To get the y-intercept, we proceed

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3 years ago

4 is subtracted from r

SIZIF [17.4K]

Answer:

Algebraic expression ;

$r-4$

Step-by-step explanation:

4 is subtracted from r means the same as r decreased by 4

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$r - 4$

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3 years ago

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Answer:

When the volume of a gas in a container varies inversely with the pressure on the gas and a container of nitrogen has a volume of 29.5 litres with 2000 psi. So, if the tank has a 14.7 psi pressure, then the volume of the tank would be 4013.6 litres.

Step-by-step explanation:

The volume of a gas in a container varies inversely with the pressure on the gas. If a container of nitrogen has a volume of litres with psi, what is the volume if the tank has a psi pressure.