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
mamaluj [8]
3 years ago
9

If the sine of angle a is 15/17 what is the cosine of angle a

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

sin A = opp/hyp = 15/17

Right triangle

Therefor

a² + b² = c²

adj² + opp² = hyp²

adj² + 15² = 17²

adj² = 17² - 15²

adj² = 289 - 225

adj² = 64

adj = 8

Cos = adj/hyp

cos A = 8/17 <–––––

Step-by-step explanation:

You might be interested in
PLEASE HELP ASAP! WILL GIVE BRAINLIST!
agasfer [191]

Answer:

f(x) = 10x - 2x + 4.

Step-by-step explanation:

This is linear  because the degree of x  is 1.

The others have degree 2 , degree 3 and degree -1.

(f(x) = 2/x = 2x^-1)).

4 0
4 years ago
How do I do this question
Alekssandra [29.7K]
We know that
circumference=2*pi*r
for r=65/2----> r=32.5 cm
circumference=2*pi*32.5-----> 204.1 cm
so
one revolution <span>of Emma’s bicycle</span> is equal to 204.1 cm-----> 2.041 m
3.2 km-------> 3200 m
1 revolution---------> 2.041 m
x rev------------> 3200 m
x=3200/2.041 ----> x=1567.86 revolutions

the answer is
1567 complete revolutions
3 0
3 years ago
I need help with this. Im so confused
vekshin1
2.   .8333333 repeated     3x1\3 is 1 the 1x5\6 is .83
3.  Order of operations PMDOS 30\2 first giving you 15 then take 50-15=35
4. 10x1.5=15
5. 20+30 first because of order of operations then multiply by 10 giving you 500
6. 120 \ 12 = 10
7. 1 + 9 = 10
8. 0.15-0.02=.13x100 = 13
9. 4.9/0.07=70

8 0
3 years ago
Stella can type 150 words in 5 minutes. What is her rate per minute?
enot [183]

Answer: Stellas rate per minute is 30 words per minute

Step-by-step explanation:

7 0
4 years ago
Which of the following rational number between 3/7 and 7/8 ?
Charra [1.4K]

Answer:

Step-by-step explanation:

There are two ways to do this. You could use your calculator to find out the decimal numbers that are equivalent to the two given fractions. Then check which one of the givens falls between these two numbers. I wouldn't do it that way -- not when you are told that the answer has 56 as the denominator.  So ...

The best way to do it is to change the two givens so that they have a denominator of 56

3/7 = 3*8/7*8 = 24 / 56

7*7 / 7*8 = 49 / 46

So you need a number that is between 49 and 24

There is only one 27 / 56

6 0
3 years ago
Other questions:
  • Jerry was walking Down the block. He walked 12 miles on Friday and 23 miles on Saturday. What’s an estimate of this awnser
    7·1 answer
  • What is the best first step in solving the equation below.
    15·2 answers
  • Felicia has a box of 9 cookies. If she divides all of the cookies up evenly among the 7 children she watches at the day care, ho
    8·1 answer
  • Please help me out? tysm! (Answer the bottom 3 or all except for the ones already answered)
    13·2 answers
  • Please help out !!!!!!!!
    10·1 answer
  • Which of the following describes the roots of the polynomial function f(x)=(x-3)^4(x+6)^2
    9·1 answer
  • 121.4 divided by 19 round to the nearest tenths​
    12·1 answer
  • Using the equation F = 1.8C + 32, find the temperature in °C if it is 92°F. Round your answer to the nearest whole number if nec
    8·1 answer
  • Kiran ate breakfast in a café. His total check was $15.
    5·1 answer
  • A glider begins its descent 3/5​​ mile above the ground. After 30 minutes, it is 9/20​​ mile above the ground. If it continues t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!