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2 years ago

Use a calculator to find the approximate value of arccos(0.77).

Mathematics

2 answers:

Amiraneli [1.4K]2 years ago

7 0

39.65 is the approximate value of arccos0.77

oee [108]2 years ago

4 0

Answer:

C 39.65

Step-by-step explanation:

On some calculators this is labelled cos-1

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Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use a scale in which 1

dedylja [7]

The height of the model is 6.1 inches.

If 1 inch represents 50 feet, to find the answer, divide 305/50.

the answer is 6.1 inches.

Hope this helps, and have a fantastic day.

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2 years ago

Of the 48 oranges in a carton 1/3 of them were rotten Ben and David took the remaining good oranges it's been took eat my orange

Burka [1]

Answer:

David took 16 oranges.

Step-by-step explanation:

We are given the following in the question:

Total number of oranges = 48

Oranges rotten =

$\dfrac{1}{3}$

Number of oranges rotten =

$\dfrac{1}{3}\times 48\\\\=16$

There were 16 rotten oranges.

Number of good oranges left =

$= 48-16\\=32$

These are equally divided among Ben and David.

Number of oranges each Ben and David get =

$\dfrac{32}{2} = 16$

Thus, David took 16 oranges.

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2 years ago

Luisa's restaurant bill comes to $85.50, and she leaves a 18% tip. What is Luisa's total

SashulF [63]

Answer:

85.50+15.39=100.89 dollars

Step-by-step explanation:

First, you calculate the tip cost, which is 15.39. Then you add that to the bill which gives you your total :D

7 0

2 years ago

In the figure m ab= 53 and m cd =25 what is the value of x? a. 26.5 b.39 c.65.5 d.78

netineya [11]

Answer:

(B) 39

Step-by-step explanation:

From the given figure, it can be seen that the two chords are intersecting each other at O and the measure of arc AB is 53 and the measure of arc CD is 25.

Using the property, angle formed by two chords is equal to half the sum of the intercepted arcs, we have

$x=\frac{arc(AB)+arc(CD)}{2}$

Substituting the given values, we get

$x=\frac{53+25}{2}$

$x=\frac{78}{2}$

$x=39$

Thus, the value of x is 39 and option (B) is correct.

7 0

2 years ago

As a ship approaches the dock, it forms a 70 angle between the dock and the lighthouse. At the lighthouse, an 80 angle is formed

Trava [24]

Answer:

The distance from the ship to the dock is approximately 5.24 miles

Step-by-step explanation:

From the parameters given in the question, we have;

The angle formed between the dock and the lighthouse = 70°

The angle formed between the dock and the lighthouse at the ship = 80°

The distance between dock and the lighthouse = 5 miles (From a similar question online)

By sine rule, we have;

$\dfrac{a}{sin(A)} = \dfrac{b}{sin(B)} = \dfrac{c}{sin(C)}$

Therefore, we have;

$\dfrac{5}{sin(70^{\circ})} = \dfrac{The \ distance \ from \ the \ ship \ to \ the \ dock}{sin(80^{\circ})}$

$\therefore The \ distance \ from \ the \ ship \ to \ the \ dock = sin(80^{\circ}) \times \dfrac{5}{sin(70^{\circ})}$

$sin(80^{\circ}) \times \dfrac{5}{sin(70^{\circ})} \approx 5.24 \ mi$

Therefore;

The distance from the ship to the dock ≈ 5.24 miles

7 0

2 years ago