3 years ago

Please help! i don't know what to do

Mathematics

1 answer:

Strike441 [17]3 years ago

6 0

Answer:

0.5* sin(x)

Step-by-step explanation:

As well known sin (2A)= 2sin(A)*cos(A)

As in our case A=x/2 => cos(x/2*sin(x/2)=1/2*sin(x)=0.5*sin(x)

You might be interested in

Help Please!! What is the value of a? Enter your answer in the box. a =

Talja [164]

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

$\sqrt{a {}^{2} } = \sqrt{225}$

therefore a=15

6 0

3 years ago

Find the median of the set of data. 30, 16, 49, 25

weeeeeb [17]

Answer:

16,25,30,49

25+30=55

55÷2=27.5

Step-by-step explanation:

median means the middle value of any set of data so first arrange the data into ascending order.

16, 25, 30, 49

the data is even so we take both the middle value , add it and divide it with 2

25+30=55

55÷2=27.5

4 0

3 years ago

I need help urgent for quiz

tino4ka555 [31]

Answer:

um, u gotta ask a question

4 0

3 years ago

MIDDLE SCHOOL MATH BRAINLEIST AND 5 STARS AS SOON AS YOU ANSWER!!!!!!!! PLEASE HELP AND THANKS SO MUCH IM SUPER GRATEFUL!!!!!!!!

gladu [14]

Answer:

Bottom prism: 126*11=1386

Top Prism: 2*45=90

Total volume: 1386+90= 1746 cubic cm

4 0

3 years ago

Read 2 more answers

What do the following two equations represent?

Dima020 [189]

Answer:

rgjk j nfkkduejf nckcoc

6 0

3 years ago