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
nignag [31]
3 years ago
9

In the triangle above, the cosine of a is 0.8.What is sine of b?

Mathematics
1 answer:
Natalka [10]3 years ago
5 0

Answer:

sin b = 0.8

Step-by-step explanation:

Since a and b are complementary angles , then

sin b = cos a = 0.8

You might be interested in
I WILL GIVE BRAINLIEST PLZ!
zhannawk [14.2K]
The answers is A,C,E because if you take the partake line to the slope like it equals to the letters A,C,E
8 0
3 years ago
Adelia drove from her house to Townsville one evening. Her distance was 180 miles. She left home at 6:27 and was at townsville a
Andre45 [30]

Answer: 720 mph or 12 miles a minute

Step-by-step explanation:

7 0
3 years ago
David wants to buy a game system . The game cost $25 and it is 1/5 of the price of the game system .how much does the game syste
Scorpion4ik [409]

Answer:

$125

Step-by-step explanation:

Multiply what 1/5 of the price is, 25 x 5 = 125

6 0
3 years ago
If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
MArishka [77]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

8 0
4 years ago
Read 2 more answers
Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet
jok3333 [9.3K]
2(11)+2x=38
22+2x=38
2x=38-22
2x=16
x=16/2
x=8
The width of the rectangle is 8 feet.
7 0
3 years ago
Other questions:
  • Whats the answer to this???
    7·1 answer
  • A principal of $3500 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 13 years? Us
    10·1 answer
  • A rectangle has dimensions 7 ft x 12 ft. Which of the dimensions describe a rectangle that is similar to this rectangle?
    10·1 answer
  • Help please with the question
    11·1 answer
  • Four ninths plus five sixths
    7·2 answers
  • 5/3 to the power of 3
    13·1 answer
  • Identify the conic section of xy=4
    9·1 answer
  • Is 3/4 less than 2/10??
    11·2 answers
  • The width to height ratio of a certain computer monitor is 16 to 9. The monitors height is 13.5 inches. What is the width in inc
    8·1 answer
  • Please help!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!