1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
const2013 [10]
3 years ago
11

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
Find the coordinates of quadrilateral PQRS with vertices P(1, 4), Q(-1, 4), R(-2, -4) and S(2, -4) under the translation (x,y)--
Georgia [21]
We apply the rule to each of the vertices:
 (x, y) ---> (x-5, y + 3)
 P (1,4) ---> (1-5,4 + 3) >> (-4, 7)
 Q (-1,4) ---> (-1-5,4 + 3) >> (-6, 7)
 R (-2, -4) ---> (-2-5, -4 + 3) >> (- 7, -1)
 S (2, -4) ---> (2-5, -4 + 3) >> (-3, -1)
 Answer:
<span> a.
 P’(-4, 7), Q’(-6, 7) , R’(-7, -1) and S’(-3, -1)</span>
3 0
4 years ago
Coach Burns charted the change in his runners’ 5K times from the first race of the year to the second race of the year. Which
Tom [10]

Yasim is Albert who ran the race at a time that was 15.7 seconds shorter, So, Yasim is the student who improved the most by decreasing the time needed to run the race.

<h2>Given that,</h2>

Coach Burns charted the change in his runners' 5K times from the first race of the year to the second race of the year.

<h3>We have to find,</h3>

Which student improved the most by decreasing the time needed to run the race?

<h3>According to the question,</h3>

Coach Burns charted the change in his runners' 5K times from the first race of the year to the second race of the year.

In the given option Yasim has the lowest value of the time which is -37.5 seconds.

Yasim was the most improved student because Yasim ran the second race in a time that was 37.4 seconds shorter than the first race.

Following Yasim is Albert who ran the race at a time that was 15.7 seconds shorter.

At the third place in improvement is Cody who actually was worse off than the first race along with the 4th place Hannah.

Hence, Yasim students improved the most by decreasing the time needed to run the race.

For more details about the Equation refer to the link given below.

brainly.com/question/3842749

7 0
2 years ago
Peter is saving money to buy an MP3 Player. After one month, he has $50. After two months he has $85. After three months, he has
taurus [48]

Answer:

9 months

Step-by-step explanation:

peter is saving 35 dollars per month.  

295=35x

295/35=8.42 which is less than 295

9 is an approximate answer

35*9 equals 315, which is enough to pay 295 and have 20 dollars left over

8 0
4 years ago
Which of the following is a UNIT RATE?
denis-greek [22]

Answer:

First one

Step-by-step explanation:

keyword "per"

8 0
3 years ago
Read 2 more answers
Answer and explain how pls
NISA [10]

Answer:

I think itsa 4 x 155 = 620

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • 100 POINTS!!! WILL MARK BRAINLIEST FOR CORRECT ANSWER AND STEP BY STEP EXPLANATION! PLEASE ANSWER BOTH QUESTIONS
    8·2 answers
  • 9×3+10 can u help me solve it
    10·1 answer
  • How do I resolve this? <br> Como resuelvo esto?
    9·1 answer
  • Help Plzzzzzzzzzzzzzzzzzzz
    6·1 answer
  • The unit of measure of the of the conversion factor should be the unit of
    12·1 answer
  • Your friend's house is 9 miles south and 12 miles west of your school. How far is your friend's house from your school?
    9·1 answer
  • What is the value of x, given that <br> RS||XY
    15·1 answer
  • Equation 1:
    5·1 answer
  • Which expression is equivalent to 5(5r)?
    8·1 answer
  • Write the equation for the graph of the line
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!