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trapecia [35]
3 years ago
11

Is 12, -15, -18, -21 arithmetic

Mathematics
1 answer:
pychu [463]3 years ago
8 0
The first person might be right
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You hike 190 meters up a steep hill that has a 33∘ angle of elevation as shown in the diagram.
erik [133]

Answer:

b = 159 m

a = 103 m

angle B is 57 degrees

Step-by-step explanation:

Let’s start with getting the measure of angle B

Mathematically, since we have a right triangle , we have to subtract the given angle from 90 to get the other acute angle

So we have the measure of B as;

90-33 = 57 degrees

To get the value of a, we use the appropriate trigonometric ratio

a faces the angle 33, that makes it an opposite to that angle

190 faces the right angle and that makes it the hypotenuse

Mathematically , the relationship between the two is that trigonometrically, they are related by the sine which is the ratio of the opposite to the hypotenuse

so, we have it that;

sine 33 = a/190

a = 190 * sine 33

a = 103 m

to get b, it is adjacent to the given angle

So with the hypotenuse, the ratio between it and the hypotenuse is the cosine

so;

cos 33 = b/190

b = 190 * cos 33

b = 159 m

4 0
3 years ago
Nathan needs to sell at least 75 t shirts to get a bonus he already has sold 15 red tye dye shirts and 23 solid blue ones how ma
AnnyKZ [126]

Red shirts and blue shirts equally count to his bonus, so he has 15 + 23 = 38 shirts sold at this moment. He needs to sell 75 shirts for the bonus. We subtract our goal from what he have; 75 - 38 = 37.


The strategy here: subtract the goal (75 shirts) from what you did to get to the goal (15 shirts and 23 shirts).


Nathan needs to sell 37 more shirts for the bonus. Hope this helps.

4 0
4 years ago
Read 2 more answers
In order to select new board members, the French club held an election. 50% of the 52 members of the club voted. How many member
kiruha [24]

Answer:

26 Members Voted

Step-by-step explanation:

50 % is 50/100

Voted = (50/100) X 52 = 52/2 = 26

3 0
3 years ago
Read 2 more answers
a local sdports team sells 6 tickets for$3 8 tickets for $4 and 10 tickets for $5. write a rule and equation to find cost of 20
goldfiish [28.3K]
20 tickets for $10 is ur answer bada Bing bad a boom
7 0
4 years ago
Thank you guys :) will give branliest to the ones that help
Dafna11 [192]
It’s a reflection across the x-axis
6 0
3 years ago
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