answer.
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
Anvisha
11 days ago
8

∠A and ∠B are complementary angles of right triangle ABC, cos A = 0.83, and cos B = 0.55. What is sin A + sin B?

Mathematics
2 answers:
babunello [11.8K]11 days ago
4 0
Since the angles are complementary, it follows that sin A = cos B and sin B = cos A

therefore sin A + sin B = 0.55 + 0.83 = 1.38
tester [12.3K]11 days ago
3 0

Answer:

sin(A)+sin(B)=1.38

Step-by-step explanation:

Let

A, B and 90\° denote the angles in a right triangle

we know that

m ------> considering complementary angles

therefore

sin(A)=cos(B)

sin(B)=cos(A)

With this problem, we have

cos(A)=0.83

cos(B)=0.55

hence

sin(A)=0.55

sin(B)=0.83

sin(A)+sin(B)=0.55+0.83=1.38

You might be interested in
Points X(6, 8), Y(3, 3), and Z(13, –3) form a triangle. What is the area of △XYZ?
AnnZ [12381]

Answer:

23(6,8)(3,3)(13-3)(-3-)

Step-by-step explanation:

3-6=8-3

+13-3=

23

5 0
1 month ago
On her birthday, Sonia distributed chocolates in an orphanage. She gave 5 chocolates to each child and 20 chocolates to adults.
Svet_ta [12734]

Answer with explanation:

Total number of children = x

Total chocolates shared = y

In total, the chocolates distributed to the children equals 5 times the number of children, or 5 x.

Chocolates received by adults equal 20.

Let the number of adults be z.

Expressing this situation as an equation:

y = 5 x + 20 z

z=\frac{y-5 x}{20}

⇒Number of adults = z

       =\frac{y-5 x}{20}

3 0
1 month ago
Nico owns 11 instructional piano books. Two are beginner books, six are intermediate books, and three are advanced books. If two
PIT_PIT [12445]
There are 2 beginner, 6 intermediate, and 3 advanced books, totaling 11.

P(advanced) = 3/11
replaced
P(beginner) = 2/11

P(both) = 3/11 * 2/11 = 6/121 <=
8 0
1 month ago
The bottom of Ignacio's desktop is 74.5\,\text{cm}74.5cm74, point, 5, space, c, m from the floor. Ignacio sits in his adjustable
PIT_PIT [12445]

Answer:

The inequality can be expressed as:

49.3 + 4.8r < 74.5

The solution set indicates that r < 5.25

Step-by-step explanation:

7 0
1 month ago
The Homerun Hitter’s Academy charges thirty-five dollars per hour for batting lessons, with a registration fee of fifteen dollar
AnnZ [12381]

Response:

the result is 6789

Detailed breakdown:

hope this assists❤️

can I get brainliest?❤️

3 0
6 days ago
Read 2 more answers
Other questions:
  • David wants to rent a bicycle for a couple of hours to explore the city. The price of the bike rental, (P)(P)left parenthesis, P
    5·1 answer
  • You have 12 cups of granola and 8 1/2 cups of peanuts to make trail mix. What is the greatest number of full batches of trail mi
    13·2 answers
  • 76% is between which of the following two numbers?
    11·1 answer
  • The function f(x) = 3x^2 models the packaging costs, in cents, for a box shaped like a rectangular prism. The side lengths are 4
    13·1 answer
  • If p+pq is 4 times p-pq, and pq does not equal to 0, which of the following has exactly one possible value? A)p B)q C)pq D)p+pq
    7·1 answer
  • Which will result in a difference of squares? (–7x + 4)(–7x + 4) (–7x + 4)(4 – 7x) (–7x + 4)(–7x – 4) (–7x + 4)(7x – 4)
    10·2 answers
  • For the questions below, enter your answers using interval notation. You can use "U" to represent a "union", e.g. enter "(1,2) U
    7·1 answer
  • Amanda has 26 nickels and dimes in her piggy bank. the number of nickels is two fewer than three times the number of dimes. how
    9·1 answer
  • In the diagram, MTD≅SLG. Which statement is true?
    5·2 answers
  • Suppose that a high school marching band has 125 members. Of these 125 band members, 41 are seniors, 24 play the trumpet, and 10
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!