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Umnica [9.8K]
3 years ago
15

ANSWER ASAP PLEASE!!!

Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0
The answer is D. <span>No, it is not a valid inference because his classmates do not make up a random sample of the students in the school.</span>
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Q2) The isoscsles right triangle has 2 of it’s sides 10,10 it’s area is
nydimaria [60]

Answer:

Step-by-step explanation:

side a = 10

Area of isosceles triangle = \frac{\sqrt{3}a^{2}}{4}\\\\

           = \frac{\sqrt{3}*10*10}{4}\\\\=\sqrt{3}*5*5\\\\=25\sqrt{3}\\\\=25*1.732

             = 43.3 square units

3 0
3 years ago
What is a 15 yard gain 
Alex_Xolod [135]
Are you by any chance referring to football? If you are, it is either a play in which by running or passing the offense moves down the field towards the opponent's endzone 15 yards, or it can be obtained by the defense committing an egregious penalty, such as a facemask, unsportsmanlike conduct, or unnecessary roughness.
7 0
3 years ago
480/X - 8 - 480/x = 3
Nataliya [291]

Answer:

i don't know its ans thank you

7 0
2 years ago
Read 2 more answers
25 out of 27 as a percentage
Basile [38]
25/27 = 0.925925925...

It's almost equal to 1 and it turns out that 1 is 100%.

So, we'd say that it's equal to:

92.59% (to 2 decimal places)

We've multiplied the value above (25/27) by 100.
8 0
3 years ago
Read 2 more answers
Solve the following equation for 0°≤x≤360° : 2 cot 2x + 3 = 0
evablogger [386]

Answer:

π

2

,

3

⋅

π

2

,

3

⋅

π

4

,

7

⋅

π

4

Explanation:

Factorizing your equation we get

cot

(

x

)

=

0

so

cos

(

x

)

=

0

we get the following Solutions in the given interval

x

=

π

72

or

x

=

3

π

2

for the second case we get

cot

(

x

)

=

−

1

so

cos

(

x

)

=

−

sin

(

x

)

and we get

x

=

3

π

4

or

x

=

7

π

4

Hint:

To get the Solutions of the last equation you can use

√

sin

(

x

+

π

4

)

=

0

Step-by-step explanation:

3 0
3 years ago
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