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Vikentia [17]
3 years ago
5

The table shows the portions of copper

Mathematics
1 answer:
lbvjy [14]3 years ago
5 0

Answer:

Red Gold

Step-by-step explanation:

Assuming you mean 9/40

Red gold = 25%

Pink Gold = .2 which is 20%

Rose gold is \frac{9}{40} = .225 which is 22.5%

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Geometry plz help me
Vadim26 [7]
24) 49pi / approximately 153.94 ft
8 0
3 years ago
A ship is stationary at sea. A tugboat is 28 km away at a bearing of 315°, and a yacht is 21 km from the tugboat at a bearing of
aleksley [76]

The distance of the yacht from the ship is found by accurately drawing

the relative location of the three vessels.

Response:

  • The measured distance of the yacht from the ship is approximately <u>30 km</u>.

<h3>Which drawing method can be used in which the distance of the yacht from the ship can be measured?</h3>

The given parameters are;

Distance of the tugboat from the ship, a = 28 km

Bearing of tugboat from the ship = 315°

Distance of the yacht from the tugboat, b = 21 km

Bearing of the yacht from the = 210°

Using a scale of 1 : 350,000, we have;

The \ drawing \ of \ a = \mathbf{\dfrac{28,000}{350,000} }= 0.08

The length of <em>a</em> in the drawing = 0.08 m = 8 cm

The \ drawing \ of \ b =  \mathbf{\dfrac{21,000}{350,000}} = 0.06

Which gives;

<em>b</em> in the drawing = 0.06 m = 6 cm

Using the above dimensions and directions, the drawing of the relative

location of the three vessels can be accurately created using MS Word.

From the application, the vector form of the distance, <em>d</em>, of the ship from the yacht is presented as follows;

  • d = 8.655·i + 0.445·j

Which gives;

d = √(8.655² + 0.445²) = 8.67

Which gives;

  • Distance of the yacht from the ship on the drawing is d ≈ 8.67 cm = 0.0867 m

Actual distance = 0.0867 m × 350,000 = 30,345 m = 30.345 km ≈ 30 km

  • The distance of the yacht from the ship ≈ <u>30 km</u>

Using cosine rule, where the angle formed at the tugboat = 75°, we have;

d² = 28² + 21² - 2 × 28 × 21 × cos(75°) ≈ 920.63

Which gives;

d ≈ √(920.63) ≈ 30

The distance of the yacht from the ship, d ≈ 30 km

Learn more about bearings in mathematics here:

brainly.com/question/10710413

3 0
2 years ago
Read 2 more answers
Find the y-intercept and interpret it.
Soloha48 [4]

Answer:

from what diagram

Step-by-step explanation:

6 0
3 years ago
That’s a Meanie Genie. On an archeological dig near the highlands of Tibet, Alley discovered an ancient oil lamp. Just for laugh
lubasha [3.4K]

Answer:

Step-by-step explanation:

Arrange the stones into 3groups of 3and place one group on one side of the first balance scale and another group on the other side.

If both sides weigh the same, then she knows that the (heavier) jewel must be in the third group of three. However, if one side is heavier than the other, then she knows that the jewel is one of the three that weighed more. In either case, after only one weighing, Alley is able to identify a group of only three stones among which is the Rama Nujan.

Then take 2 of the 3 stones and place one on each side of the second scale. If one weighs more than the other, then she knows that this stone is the one containing the jewel. If they both weigh the same, then she knows that the third stone must contain the jewel.

3 0
3 years ago
How many reflectional symmetries does the regular hexagon have?
eimsori [14]

Hello There!

I believe they have three?

Hopefully, this helps you!!

AnimeVines

7 0
2 years ago
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