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3 years ago

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

Mathematics

2 answers:

harina [27]3 years ago

8 0

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

djverab [1.8K]3 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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Wewaii [24]

9514 1404 393

Answer:

12.0 cm

Step-by-step explanation:

Use the formula for the volume of a cylinder. Fill in the given values and solve for the height.

V = πr^2h

1846 cm^3 = π(7 cm)^2·h

h = 1846/(49π) cm ≈ 12.0 cm . . . . . . divide by the coefficient of h

The height of the can is about 12.0 cm.

3 0

3 years ago

Please help.. 10 points

Leokris [45]

Answer:

z = 55.15432893

x = 59.61543424

y = 22.5166605

Step-by-step explanation:

To find length "z" you will have to use SOHCAHTOA.

Labelling the triangle will show us that the side marked "z" is the hyp and the side marked 39 is the opp.

sin 45 = $\frac{39}{z}$

z sin 45 = 39

z = $\frac{39}{sin45}$

z = 55.15432893

Using Pythagoras' theorem, you can find that the adj = 39

In the other triangles POV, the adj is actually the opp.

Therefore, use tangent to find y.

tan 60 = $\frac{39}{adj}$

y tan 60 = 39

y = $\frac{39}{tan60}$

y = 22.5166605

Use Pythagoras's Theorem to find x.

$23^{2} + 55^{2} = x^{2}\\\sqrt{23^{2} + 55^{2}} = x\\59.61543424=x$

3 0

3 years ago

Marcus can choose between a monthly salary of $ 1500 plus 5.5% of sales or $2,400 dollars plus 3% of sales. He expects sales bet

Citrus2011 [14]

He should choose the second option because he will be paid more money, with the percentage he expects.

Hope this helps!

3 0

3 years ago

What’s the area pls help for 30 points ?

solmaris [256]

Answer:67.5

Step-by-step explanation:

5*10=50

5*7=35 35/2=17.5

17.5+50=67.5

7 0

3 years ago

Read 2 more answers

While on a road trip, Steve drove 300 miles in 5 hours. After stopping for gas, he drove an additional 120 miles in 2 hours. Doe

bija089 [108]

Answer:

The given situation is in direct variation.

The dependent variable is the distance covered and the independent variable is the number of hours.

Step-by-step explanation:

We are given the following information in the question:

Steve drove 300 miles in 5 hours.

After stopping for gas, he drove an additional 120 miles in 2 hours.

We calculate the ratios and if these ratios are equal then, we can say that the situation represent a direct variation.

For direct variation, the equation is of the form y = kx that is , we can write,

$\displaystyle\frac{y}{x} = k$

To check the ratio:

$\displaystyle\frac{300}{5} = \frac{300+120}{5+2} =\frac{420}{7} = 60$

Thus, the given situation is in direct variation.

The dependent variable is the distance covered and the independent variable is the number of hours.

3 0

3 years ago