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
Lady bird [3.3K]
3 years ago
9

The sine of 49° is equal to the cosine of what angle?

Mathematics
1 answer:
Digiron [165]3 years ago
6 0
Sinα=cos(90-α)  this is an identity which you need to know...

in this case:

sin49°=cos41°
You might be interested in
Cho khối lăng trụ có đáy là hình vuông a và chiều cao bằng 2a. Thể tích của khối lăng trụ đã cho bằng bao nhiêu
Alenkinab [10]

Answer:

Step-by-step explanation:

V=B*h=a*a*2a

3 0
3 years ago
To use distributive property solve equation 2(a+3)=-12
WARRIOR [948]

Answer: a= -18/2

Step-by-step explanation:

2a + 2x3 = -12

2a + 6 = -12

2a + 6 - 6 = -12 - 6 ( subtract 6 from both sides)

2a = -18 (Divide 2 by both sides)

a= -18/2

4 0
3 years ago
WILL GIVE BRAINLIEST ANSWER TO WHOEVER ANSWERS FIRST
NNADVOKAT [17]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
solve, showing all work. state if there is one solution, no solution, or infinite solutions 2(2b-4)+5=7+2b help asap i need the
WINSTONCH [101]

Answer:

one solution

Step-by-step explanation:

2(2b-4)+5=7+2b

4b - 8 + 5 = 7 + 2b

4b -3 = 7 + 2b

4b - 2b = 7 + 3

2b = 10

b = 10/2

b = 5.

it can have only 5 as solution that will be only one solution if we change the value of 5 to other number then the answer will be wrong

4 0
3 years ago
What is the volume of the figure below?
Alja [10]

Answer:

312

Step-by-step explanation:

Volume of the parallalelepiped:

base x width x height

V = 5 x 4 x 12 = 240

for triangular prism:

base = 8-5 = 3

base area = (base x height)/2 = (3x4)/2 = 6

V = base area x 12

V = 6 x 12 = 72

Total volume = 240 + 72 = 312

7 0
3 years ago
Other questions:
  • Can some one help me pls
    10·1 answer
  • What is 1\10 of 3,000 is 10 times as much as =
    10·1 answer
  • A teacher purchased a total of 460 notebooks and pencils. Each notebook cost $1.75 and each pencil cost $0.05. If the teacher sp
    15·1 answer
  • for employees of Papa Tony's pizza or cleaning up at the end of a busy night. There is a list of 43 complete a task that need to
    8·1 answer
  • HELP PLS explain how you can tell that the lines 4x-10=-3 are collinear by looking equations
    15·1 answer
  • How is 21\30 bigger then 2\3
    10·1 answer
  • Please help..
    13·1 answer
  • Find the x-intercept and y- intercept from the following linear equation: -7x+4y=56
    12·1 answer
  • Part 1 out of 2
    10·1 answer
  • Find the median the data. 55,44,40,55,48,44,58,67
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!