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
Sveta_85 [38]
3 years ago
10

Given cscx =-5/2 between 270 and 360 find sin2x

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0
Hello : 
cscx = -5/2
1/sinx =-5/2
sinx=-2/5
sin²x+cos²x=1
4/25+cos²x=25/25
cos²x = 21/25
between 270 and 360 : cosx > 0          cosx=(<span>√21)/5
but : sin2x =2sinx cosx
       sin2x = 2(-2/5)(</span>(√21)/5)
       sin2x = (-4√21)/25
You might be interested in
Here is the histogram of a data distribution. All class widths are 1.
JulsSmile [24]
Median is 6 so your answer is C
8 0
4 years ago
(20 POINTS!!!) Richie and his brother have a paper route. Together they can deliver all of the papers in 40 minutes, and Richie
Ann [662]

Simplify equation:     14 - 7y + 5 = 1 + 3y + 24

     simplify again:  19 - 7y = 25 + 3y

     add -25  and 7y to both sides:   -6 = 10y

     y = -6/10   or -0.6

2.  After 30 minutes, richie has delivered 1/3 of the papers, so they have to deliver the remaining 2/3.  Since they can deliver them all in 40 minutes, would the answer be 2/3 of 40?  I'm not sure about this.

7 0
3 years ago
Solve the equation.<br><br> -3(y - 5) = 24<br><br> y = ______?
hjlf
Multiply the -3 by what is inside the parentheses.
-3y + 15 =24
subtract 15 from both sides.
-3y=9
divide by -3 on both sides.
y = -3
3 0
3 years ago
Read 2 more answers
1. The perimeter of a rectangular garden is 690 ft. The short sides are each 55 ft. long. What's the length the other 2 sides? W
Nikolay [14]
1) C
2) I don't understand the question<span />
8 0
3 years ago
What is 2 16/99 as a decimal
Serggg [28]
2 16/99 as decimal should be:
2 + (16/99) = 2 +0.17 = 2.17
6 0
4 years ago
Other questions:
  • What is the common difference d of the sequence?
    10·1 answer
  • Describe how to graph point K at (5,4)
    5·2 answers
  • Troy shares a family bag of 24 Jet Plane
    12·2 answers
  • What is the solution of the proportion 5/7 = m/56 ?
    15·2 answers
  • 6 times a number is 16 less than the square of that number. Find the negative solution.
    13·1 answer
  • This system has one solution. {y=6x−11y=x2+4x−10 what is the y-coordinate of the solution?
    8·2 answers
  • Step by step please ASAP
    10·1 answer
  • What value of N balances the scale
    8·1 answer
  • What is the multiplicative identity of -12/13
    15·1 answer
  • What’s the answer to -15(9)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!