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3 years ago

When exchanging from your currency to another country's currency using a foreign exchange table, you should

2 answers:

6 0

When exchanging from your currency to another country's currency using a foreign exchange table, you should <span>multiply the amount you have by the exchange rate. The correct option among all the options that are given in the question is the first option. I hope that this answer has come to your help.</span>

polet [3.4K]3 years ago

6 0

Answer:

A- multiply the amount you have by the exchange rate.

Step-by-step explanation:

When exchanging from your currency to another country's currency using a foreign exchange table, you should - multiply the amount you have by the exchange rate.

Exchange rates helps us to know how much our currency is worth in another currency.

Suppose you have to convert $100 to Euros.

The exchange rate is :

$1 = 0.89 Euro

So, $100 = $100\times0.89=89$ Euros.

Therefore, we multiply by the exchange rate. Hence, option A is correct.

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Two isosceles triangles are shown above. If b = 180-4a and a=35, What is the value of c?

Ymorist [56]

Answer:

a=35 given

b=40

c=110

I couldn't complete see c. Please look at the picture to see what I assumed it to be.

Step-by-step explanation:

Hmmm... I guess a and b are not vertical.

We are given b=180-4a and a=35 so b=180-4(35)=180-140=40.

So b=40.

Isosceles triangles always have congruent base angles. So let's call both of the base angles in the bottom triangle x.

That means x+x+40=180.

We need to solve this for x.

Combine like terms:

2x+40=180

Subtract 40 on both sides:

2x=140

Divide both sides by 2:

x=140/2

Simplify:

x=70

So I'm assuming that c and it's adjacent angle are sitting on a straightedge together which means 70+c=180.

70+c=180

Subtract 70 on both sides:

c=180-70

Simplify:

c=110

4 0

3 years ago

If the distance from the boat to the lighthouse is 120 meters and the angle of elevation is 40°, which of the following equation

Sidana [21]

You can use the fact that lighthouses are usually standing perpendicular to the ground that smaller distance on earth surface(planes or water bodies like sea or ocean or calm river) acts as if they a straight plane.

The length (y) of the lighthouse is given by:

Option D: tan 40° = y over 120.

<h3>What is angle of elevation?</h3>

What you see something higher than your eye level height, you need to see up, you elevate your head to see that thing. The angle from the straight horizontal level of eye to the current elevated level is measured and named as angle of elevation.

Similarly, there is angle of depression when the observer looks down.

<h3>How to calculate the height of the considered lighthouse?</h3>

See the figure attached below to understand the symbols used in calculations.

Let the boat is on point C, and let the light house be AB.

Then we have:

Length of CA = 120 meters

∠ ACB = 40°

To find: length of AB

By using the trigonometric ratio tangent, we get:

$tan(\angle ACB) = \dfrac{AB}{AC}\\\\tan(40^\circ) = \dfrac{h}{120}$