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
NikAS [45]
3 years ago
14

Solve for first two positive solutions sin(3x)cos (4x)+cos(3x)sin(4x)=-0.9

Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0
<span>sin(3x)cos (4x)+cos(3x)sin(4x)=-0.9
Then sin(3x+4x) = 0.9
sin(7x) = 0,9
Arcsin(,9) = 64.158 degrees or 115.842
x = 9.165 and 16.549
</span>
You might be interested in
I have 43 cubes <br> how many tents and ones can I make
MaRussiya [10]

4 TEN 3 ONE................ plz mark brainlyest!!!


7 0
3 years ago
Read 2 more answers
Converting Units Attachment Included
kumpel [21]
100÷11=9.09090909
converting it it will be 9.1 miles per hour
4 0
3 years ago
Thea has a key on her calculator marked $\textcolor{blue}{\bf\circledast}$. If an integer is displayed, pressing the $\textcolor
mel-nik [20]

Answer:

$9$

Step-by-step explanation:

Given: Thea enters a positive integer into her calculator, then squares it, then presses the $\textcolor{blue}{\bf\circledast}$ key, then squares the result, then presses the $\textcolor{blue}{\bf\circledast}$ key again such that the calculator displays final number as $243$.

To find: number that Thea originally entered

Solution:

The final number is $243$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $243$ must be $324$.

As previously the number was squared, so the number before $324$ must be $18$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $18$ must be $81$

As previously the number was squared, so the number before $81$ must be $9$.

6 0
4 years ago
Help me with this please
Angelina_Jolie [31]
It’s the last one. b < c < a
4 0
3 years ago
a hiking trail is 20 kilometers long. park organizers want to build 5 rest stops for hikers with one on each end of the trail an
ICE Princess25 [194]

The distance that will separate each rest stop is 4 kilometers.

<h3>What is the distance?</h3>

Division is the process of parting a number into equal parts using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations.

The distance = length of the trail / number of rest stops

20 km / 5 = 4km

To learn more about division, please check: brainly.com/question/13281206

#SPJ1

3 0
2 years ago
Other questions:
  • The given series has six terms. what is the sum of the terms of the series? 17 + 25 + 33 + . . . + 57
    9·1 answer
  • A recent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 with a standard deviation of
    7·2 answers
  • The arithmetic mean of ten boys is 8 years, 6 months one of them is 13 years old. Then the arithmetic mean of remaining 9 boys i
    6·1 answer
  • What is the equation in point-slope form of a line that passes through the points (7, −8) and (−4, 6) ?
    6·1 answer
  • (4x^5 + 3x^2 – x^4) +(6x^2 - 2x^5)
    12·2 answers
  • The equation of a line is 5 x 2 y = 9. What is the slope of this line?
    5·1 answer
  • Help me for brainlist if you dont explain no brainlist
    6·1 answer
  • Factor the common factor out of each expression. PLEASE HELP! WILL GIVE BRAINLIEST​
    5·1 answer
  • Kane's Furniture Store advertised a table at a 13% discount. The original selling price was $113, and the sale price was $100. W
    13·1 answer
  • What is 1.235 repeating as a fraction
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!