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
Lina20 [59]
4 years ago
10

In right triangle ABC A and B are complementary angles and sin A = 8/9. What is cos B?

Mathematics
2 answers:
alexandr402 [8]4 years ago
7 0
CosB = cos (π/2-A)
= sinA
=8/9
xeze [42]4 years ago
5 0
If the sin A = 8/9 then
Angle A = arc sine (8/9) =
62.734 Degrees

Angle B is the complement of Angle A and equals
90 -62.734 Degrees =
<span> <span> <span> 27.266 Degrees

cosine (</span></span></span> <span> <span> <span> 27.266 </span> </span> </span> ) = 0.88889
 

You might be interested in
What is 0.823,1.823,0.732,0.832 greatest to least
motikmotik
Those numbers, in greatest to least order, are:

1.823, 0.832, 0.823, 0.732

<span>I hope this helped! Please take the time to rate, pick the Brainliest answer (not necessarily mine!), and thank me if you feel I helped with this question! Thank you, it helps me a lot. :)</span>
6 0
3 years ago
Read 2 more answers
You roll two fair dice, one green and one red. (a) Are the outcomes on the dice independent? Yes No (b) Find P(1 on green die an
ASHA 777 [7]

Answer:

a

  Yes

b

 P(1 \& 5) = \frac{1}{36}

c

 P(5 \& 1) = \frac{1}{36}

d

 P(5 \& 1 | 1\& 5  ) = \frac{1}{18}

Step-by-step explanation:

From the question we are told that

     Two fair dice, one green and one red were rolled

Generally the  outcomes on the dice independent because the outcome on the first dice is not affected by the second die

Generally the  probability of getting a 1  on a dice rolled is  P(1) =  \frac{1}{6}

the  probability of getting a 5 on a dice rolled is  P(5) =  \frac{1}{6}

Generally the probability of P(1 on green die and 5 on red die) is mathematically represented as

         P(1 \& 5) = \frac{1}{6}  *\frac{1}{6}

         P(1 \& 5) = \frac{1}{36}

Generally the probability of P(5 on green die and 1 on red die) is mathematically represented as

          P(5 \& 1) = \frac{1}{6}  *\frac{1}{6}

         P(5 \& 1) = \frac{1}{36}

Generally the probability of P((1 on green die and 5 on red die) or (5 on green die and 1 on red die)) is mathematically represented as

          P(5 \& 1 | 1\& 5  ) = \frac{1}{36} + \frac{1}{36}

         P(5 \& 1 | 1\& 5  ) = \frac{1}{18}

8 0
3 years ago
What are product game boards
lutik1710 [3]
The Product Game board consists of a list of factors and a grid of products.
6 0
3 years ago
The ratio of the area between a small square of land and a large squareof land is 3: 7. Given that the total area of the two squ
lakkis [162]

Given:

The ratio of the area between a small square of land and a large square

of land is 3: 7.

Total area of the two squares of land (in sq. meter) is 4000.

Required:

The area of each square of land.

Answer:

We have the ratio of the area between a small square of land and a large square of land is 3: 7.

Let

x^

be the area of the square of land.

Then their ratio is given by,

3x^:7x^

Also given that the total area of the two squares of land (in sq.meter) is

4,000.

The area of

Therefore,

\begin{gathered} 3x^+7x^=4000 \\ \Rightarrow10x^=4000 \\ \Rightarrow x^=400 \\  \end{gathered}

Therefore,the area of small square (in sq. meter) is,

3x=3(400)=1200

and the area of large square (in sq. meter) is,

7x=7(400)=2800

Final Answer:

The area of small and large square respectively (in sq. meter) is,1200 and 2800.

7 0
1 year ago
Pls help I suck at factoring in Alg 2 <br><br> Completely factor 8x-4
NNADVOKAT [17]
You would factor 8x - 4 as 4 ( 2x - 1)
5 0
3 years ago
Read 2 more answers
Other questions:
  • How do you answer this
    13·1 answer
  • PLEASE HELP ME!
    10·1 answer
  • What is the distance between the points (−6, 2) and (−6, −11)?<br> A) 4 B) 5 C) 13 D) 17
    11·1 answer
  • I can’t figure this out no matter what I do it says it’s wrong
    12·1 answer
  • Im giving brainlyest to first CORECT answer and 30points QUICKKKKKK
    8·1 answer
  • Dagne measures and finds that she can do a vertical jump that is 27.5% of her height. If Dagne can jump 13.2 inches, how tall is
    13·1 answer
  • Solve these absolute value inequalities. 1&lt;|2x +2|<br>​
    5·1 answer
  • A school held several evening activities last month—a music concert, a basketball game, a drama play, and literacy night. The mu
    14·1 answer
  • Hi! Kindly give me the formula for finding the percentage of profit.
    10·2 answers
  • Zeke and six of his friends are going to a baseball game. Their combined money totals $28.50. At the game, hot dogs cost $1.25 e
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!