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hoa [83]
3 years ago
7

karie builds a skate ramp with 2 metres of wood. she wants the vertical height of the ramp to be 1 metre. what does the angle el

evation need to be
Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
4 0

9514 1404 393

Answer:

  30°

Step-by-step explanation:

The relationship between triangle sides and angles can be remembered using the mnemonic SOH CAH TOA. Here, we're interested in the relationship involving the hypotenuse and the side opposite the angle:

  Sin = Opposite/Hypotenuse

For a ramp 1 m high and 2 m long, we have ...

  sin(x) = (1 m)/(2 m) = 1/2

  x = arcsin(1/2) = 30°

The elevation angle of the ramp needs to be 30°.

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The box plots below show attendance at a local movie theater and high school basketball games:
cricket20 [7]

The standard deviation is a better measure of spread for movies than it is for basketball games.

<h3>What is box- plot?</h3>

A box plot is a graphical rendition of statistical data based on the minimum, first quartile, median, third quartile, and maximum.

As, Movies is more centric to mean and not skewed on a particular side whereas basketball games is not centric to mean but is skewed right then left.

Now, Standard deviation just measures the deviation or spread with respect to mean of collected data.

So, In the movies the data is more collected. Thus standard deviation is best suited for movie data.

Now, interquartile range. IQR relies on if the data is skewed.

So, in the basketball data the standard deviation will not give the information.

Hence, the  standard deviation is a better measure of spread for movies than it is for basketball games.

Learn more about this concept here:

brainly.com/question/17157714

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5 0
2 years ago
What is the equation of a line with slope −23 and a y-intercept of −4 ?
Alona [7]

Answer:

its A

Step-by-step explanation:

the y intercept would be -4 and the slope would be -23, put it in y=mx+b form

8 0
3 years ago
.Calculate the time in which ₦1,500 will amount to ₦9,000 at 20% per annum.
katovenus [111]

Answer:

30 yrs

Step-by-step explanation:

SI = PRT/100

T = I × 100/PR

= 9000×100/1500×20

= 900000/30000

= 30 yrs

3 0
2 years ago
Graph the point (-10,-7) on the coordinate plane
Anuta_ua [19.1K]
I think that’s right
7 0
3 years ago
HELP HELP HELP explanation too??
sergeinik [125]

Answer:

4) 96°​

Step-by-step explanation:

Supplementary angles add up to 180.

So 180-84=96

7 0
2 years ago
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