All categories

3 years ago

I don’t understand to this problem

Mathematics

1 answer:

JulsSmile [24]3 years ago

6 0

You would use TOA from trig so your equation would be

Opposite = tan(angle) X adjacent

X = tan(15) X 400
It should equal 6000 but check that using the equation on a calculator :)

You might be interested in

How would u write 64 square centimeters?Also for my problem would I put 70 feet or 70 square feet?

Leto [7]

64cm2 but make the number two small and in the corner of the m
70 square feet

3 0

3 years ago

Read 2 more answers

How to find the height of a cube in terms that a 12 year old can know pls

kolbaska11 [484]

Answer:

To find the height of a cube you simply need to know the length of the sides of a cube.

Step-by-step explanation:

All sides of a cube are equal because it is made up of squares. If a cube has a length of 3 cm, then it will also have a height of 3 cm.

6 0

2 years ago

you have 1200 feet of fencing enclose a rectangular region and subdivide it into three smaller rectangular regions by placing tw

miss Akunina [59]

Answer:

400

Step-by-step explanation:

8 0

2 years ago

Write the equation for the line parallel and the equation for the line perpendicular to the given line j that passes through Q

oksano4ka [1.4K]

Answer:

The equation of the line parallel is 6x - 5y = - 36

3 0

3 years ago

The equation for the ellipse given is 4x^2+9y^2-16x+18y-11

natita [175]

Answer:

a. a = 3, b = 2

b. The coordinate of the center is (2, -1)

c. The eccentricity of the ellipse is √5/3

d. Please see attached graph of the ellipse created with MS Excel

Step-by-step explanation:

7. a. The given equation of the ellipse is presented as follows;

4·x² + 9·y² - 16·x + 18·y - 11

The general equation of an ellipse

$\dfrac{(x - h)^2}{a^2} + \dfrac{(y - k)^2}{b^2} = 1$

We can write;

4·x² - 16·x + 9·y² + 18·y - 11

4·(x² - 4·x + 4) + 9·(y² + 2·y + 1) - 25 - 11

4·(x² - 4·x + 4) + 9·(y² + 2·y + 1) = 25 + 11 = 36

4·(x - 2)² + 9·(y + 1)² = 36

$\dfrac{4\cdot (x - 2)^2}{36} + \dfrac{9 \cdot (y + 1)^2}{36} = \dfrac{36}{36}$

$\therefore \dfrac{ (x - 2)^2}{9} + \dfrac{ (y + 1)^2}{4} = \dfrac{ (x - 2)^2}{3^2} + \dfrac{ (y + 1)^2}{2^2} = 1$

By comparison, a = 3, b = 2, h = 2, k = -1

b. The coordinate of the center, (h, k) = (2, -1)

c. The eccentricity of the ellipse = c/a

c² = a² - b²

∴ c² = 3² - 2² = 5

c = √5

Eccentricity = √5/3

d. Please find attached the graph of the ellipse created with MS Excel

8 0

3 years ago