All categories

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

You might be interested in

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

7 0

2 years ago

Read 2 more answers

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

kindly recall that the equation of a straight line is;

y = mx + c

where m is the slope and c is the y-intercept

Let’s take any of the points (28,12)

Thus:

12 = 0.25(28) + c

12 = 7 + c

c = 12-7

c = 5

6 0

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

Subtracted = -

$r - 4$

3 0

3 years ago

Read 2 more answers

In the following exercises, solve

yKpoI14uk [10]

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.