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4 years ago

What does the expression l+w+l+w represent

Mathematics

2 answers:

harina [27]4 years ago

8 0

Length + width+ length + width? I think..

djverab [1.8K]4 years ago

5 0

That means legthn+lgnth +width+width

that is the perimeter formula for a rectangle or the measure around a rectangle

it can be written as (l-legnth)
perimiter=2l+2w or
p=2l+2w or
p=2(l+w)

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A train car is carrying 500 TV's. If each set weighs 12.85 pounds, what is the weight of the entire load?

amid [387]

Answer:

6425 pounds

Step-by-step explanation:

If 1 TV weighs = 12.85 pounds

then 500 TVs weigh = 12.85 x 500

= 6425 pounds

6 0

3 years ago

students hiked 32 miles on a 4 day hiking trip. at that rate, how many miles will the students hike on a 6 day hiking trip.

Flura [38]

The answer is 48 miles,
They hiked 32 miles for 4 days, make the day only one, so how many miles/day (divide),then 8 miles/day × 6 days = 48 miles

8 0

4 years ago

stich3 [128]

Answer:

7.0 m/s

Step-by-step explanation:

We can solve this using the 2 kinematic equations and you can use either:

$Vf=Vi+at\\\\vf^{2}=vi^{2}+2ad$

So let's use the first one.

Vi = initial velocity

Vf = final velocity

a = acceleration due to gravity (constant 9.8m/s²)

t = time

The marble is dropped so this means that it is in free fall. The initial velocity is always 0m/s.

We are given then the following:

d = 2.5m

t = 0.71s

Vi = 0 m/s

a = 9.8m/s²

So we plug in the values we know and solve:

$Vf = Vi + at\\\\Vf = 0 m/s + (9.8m/s^{2})(0.71s)\\Vf = 6.958m/s \cong 7.0m/s$

7 0

3 years ago

Which vocabulary word best describes what has been circled in this expression?

motikmotik

<h3>Answer: Coefficient</h3>

The coefficient is the number just to the left of, or in front of, the variable. It's being multiplied by the variable

Eg: 7x = 7 times x

4 0

3 years ago

(3n³ - 5n + n²) - (-8n² + 3n³)

Dima020 [189]

-5n+9n^2

simplify expression ^

7 0

3 years ago