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Ann [662]
3 years ago
12

NEED IMMEDIATE MATH HELP!!!! WILL MAKE BRAINLIEST!!!

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0
The ladder is making a right triangle so just use sin, cos, and tan to find either of the unknown angles.
(a) Using sin, you can find the missing angle and come up with the equation sin<span>ø = 9.2/10
</span><span>ø=80 degrees
</span>(b) Using a different triangle where the height of the building is unknown but all the angles are known. You can use cos to find the length of the base of the triangle. 
cos75=x/10
x=9.2 ft
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3 a western beach is reducing width by 10 feet every 5 years for the first 10 years the patter then became less constant dunes b
Anna71 [15]

A. Western Beach is reducing was width by 10 feet every 5 years for the first 10 years, then the pattern became less constant. Dunes Beach experienced a stable and fast increase in width, 25 feet every 5 years of 5 feet per year.

B. Somewhere between years 11 and 12 they had the same width.

C. You can place the values on a graph and connect the points, and look at the intersections to determine points in time where they were of the same width.

First, lets look at the data. Western Beach (or WB for short) decreases its width by 10 feet every 5 years from year 0 to year 10. Between year 11 and year 15 the pattern shifts and becomes less changing since there is barely any change between years 12 and 15. Dunes Beach (or DB) increases steadily by 25 feet every 5 years or 5 feet per year.

Assuming the changes in width happen over time and gradually, at some point between year 10 and 11, both beaches would have likely had the same width, somewhere between 70 and 75.

To determine the exact point in time where they meet we would need to draw a graph, with the width in feet on the X axis and the year on the Y axis. Then we place all the pairs in the graph by their coordinates, and connect the points that correspond to each beach. We then see where the lines intersect and use mathematics to determine the values of X and Y, giving us the time and width when the two beaches were equal.

please mark me brainliest it helps to become an genius

4 0
3 years ago
HELP ME H PLZZZZZ??????
Karo-lina-s [1.5K]

Answer:

Hello :)

Step-by-step explanation:

1. a

2. None

3. c

4. b

Hope this helps :)

8 0
2 years ago
Read 2 more answers
Use the graph of f below. Assume the entire function is graphed below.<br> Find the domain
enot [183]

ANSWER

The domain of the function is

- 3 \leqslant x \leqslant 6

or

[-3,6]

EXPLANATION

The domain of a function refers to the values of x for which the function is defined.

From the graph, we can see that the function begins at (-3,6) and ends at (6,-4).

Therefore the function is defined for x=-3 to x=6.

Hence the domain of the function is

- 3 \leqslant x \leqslant 6

or

[-3,6]

5 0
3 years ago
A scale of 1:20 is used to make the drawing of a car if the length of the drawing is 10 what is the real length of the car?
Murljashka [212]

Answer: 200

Step-by-step explanation:

since 10 is one part

10 x 20 = 200

3 0
3 years ago
HELP... PLEASE ........ PLEASE
solong [7]
Will its 12.75 because you add 3+9 =12 and you just put the 75 that's it
8 0
3 years ago
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