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
Leona [35]
3 years ago
13

If cos B is 4/5 what is sin a?​

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

sin(A+B)=sinAcosB+cosAsinB. Putting the values in. sin(A+B)=(4/5)(−3/5)+(3/5)(−4/5). sin(A+B)=−24/25.

You might be interested in
If each letter of the alphabet is worth two more than its preceding letter, where A is the first number and equals 1, B is the s
andrey2020 [161]

Answer:

<h2>The total value of all the letters in the alphabet is 676.</h2>

Step-by-step explanation:

The problem is about an arithmetic sequence where the difference is 2, the first term is 1 and we know that the alphabet has 26 letters.

To find the total sum of all values, we have to use the following formula

S_{n}=\frac{n}{2}(2a_{1}+(n-1)d )

Where n=26, a_{1}=1 and d=2. Replacing values, we have

S_{26}=\frac{26}{2}(2(1)+(26-1)2) =13(2+50)=13(52)=676

Therefore, the total value of all the letters in the alphabet is 676.

7 0
3 years ago
Read 2 more answers
5a please :) I don't know the formula
Naddika [18.5K]
S.A = (2×area of base) + area of lateral faces
Area of lateral faces = area of base × height

Area of lateral faces = 19×4×8=608
S.A = (2×19×4)+608
=760
3 0
4 years ago
Help??<br> anyone?<br> 7th grade math <br> tysm
prohojiy [21]

Answer:

if it isn't compound interest, i think it is $3029.9447

Step-by-step explanation:

4 0
3 years ago
19810 rounded to the nearest hundred
Cloud [144]
19,810 rounded to the nearest hundred is 19,800.
8 is in the hundreds place, and the number 1 is in front of it.
 
Numbers 1-4 in front of the number make the number stay the same.

Numbers 5-9 in front of the number make the numbers round up one number.
3 0
3 years ago
Read 2 more answers
June has $1.95 in dimes and nickels. She has a total of 28 coins. how many of each type of coin does she have?
Dovator [93]

Answer:

11 dimes, 17 nickels

Step-by-step explanation:

d + n = 28, put one variable by itself on a side, d = 28 - n

.10d + .05n = 1.95

Sub the first equation into the second

.10(28 - n) + .05n = 1.95

2.8 - .10n + .05n = 1.95

2.8 - .05n = 1.95

-.05n = -0.85

n = 17 nickels

d + 17 = 28

d = 11  11 dimes

7 0
2 years ago
Read 2 more answers
Other questions:
  • Write an expression for 40% of 25
    6·2 answers
  • 9.
    11·1 answer
  • What is the range of this<br> graph?
    9·1 answer
  • A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds a
    11·1 answer
  • What is the simplified form of the quantity of x plus 5, all over 2 + the quantity of x plus 6, all over 2?
    15·1 answer
  • Ms. Pendleton’s bedroom is a shape of a rectangle. The width of the room is 16 feet and length is four more feet than the width.
    13·1 answer
  • Omg guys get this right pls this is a test and this is most of my grade this question
    7·1 answer
  • PLEASE HELPPPPPP<br> 35 POINTS ILL GIVE BRAINLYEST
    15·2 answers
  • Kristine has a weekend job advertising an upcoming play. She has two options for being paid. Option A is an hourly wage of ​$7.0
    11·2 answers
  • Solve -8x + 3 + 2x = 5(x - 6) with steps
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!