All categories

2 years ago

30 45 60 Which is it? Help please

Mathematics

1 answer:

blagie [28]2 years ago

3 0

Answer:

D = 90°

Step-by-step explanation:

the square on the angle means its a right angle and right angle is always 90°

You might be interested in

What expression is equivalent to 3 to the 5th power?

netineya [11]

Answer:

$3^{5}$

Step-by-step explanation:

3 0

2 years ago

Occasionally you may encounter an angle that's given in the old fashioned degrees/minutes/second form, as described in the box o

solniwko [45]

Answer:

$a=3.0881$ degrees.

$a=(0.017156)\pi$ rad or

$a=0.053897$ rad

Step-by-step explanation:

Let's start writing some equivalences.

1 degree = 60 minutes = 60'

1 minute = 1' = 60 seconds = 60''

Therefore,

1' = 60'' ⇒ 60' = 3600'' ⇒ 1 degree = 3600''

For a = 3 degree 5'17'' we are going to transform the minutes and the seconds into degrees.

60' = 1 degree ⇒

5' = $\frac{5}{60}$ degree

For the seconds :

3600'' = 1 degree ⇒

17'' = $\frac{17}{3600}$ degree

Finally :

$a=(3+\frac{5}{60}+\frac{17}{3600})$ degrees

$a=3.0881$ degrees.

For radians, the equivalence is :

360 degrees = 2π rad

For a = 3.0881 degrees ⇒

360 degrees = 2π rad

3.0881 degrees = $\frac{(3.0881)2\pi }{360}$ rad

$a=0.053897$ rad

or in terms of π ⇒ $a=(0.017156)\pi$ rad

7 0

2 years ago

I’m still stuck on this

kicyunya [14]

Using the frequency table, you can roughly imagine the how the histogram/graph of the values will look in your head. The closer you are to 0, the higher the frequencies, so the higher bars that you graph. As you get further away, the frequencies get smaller, so the bars you graph will also be shorter. The graph will look something similar to middle graph in the picture I attached.

So now its time to match the look of the graph to the types of distributions you have. It's clearly not uniform/bell-shaped (those are the same thing) because its not symmetrical like the graph on the left in the picture I attached. It's not left-skewed like the graph on the right because our graph is higher on the left. That leaves right-skewed as the correct answer.

In right-skewed distributions, the mean<span> is typically greater than the median. You also could have tackled the problem by finding the mean and the median, but the way above is faster.</span>