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
vlabodo [156]
3 years ago
8

Find the value of cos x if the value of sin x=3/5 and x is acute angle

Mathematics
1 answer:
just olya [345]3 years ago
3 0
Sin = opposite / hypotenuse
cos = adjacent / hypotenuse

using pythagoras theorem =

adjacent = 5^2-3^2
= 16
= square root 16
=4

cos x = 4/5
You might be interested in
Help..please i dont understand this assignment
FrozenT [24]

Answer

the second one, and 5th one

Step-by-step explanation:

because it is liquid

6 0
2 years ago
Read 2 more answers
Simplify.<br> X+1<br> - 1 - 4.2
Hoochie [10]

Answer:

X − 4.2

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the value of X that makes this answer true? x-3x=2(4+x)
Andreas93 [3]

The answer is x = -2

6 0
3 years ago
Read 2 more answers
the vertices of square PQRS are P(-4,0) Q(4,3) R(7,-5) S(-1,-8). show that the diagonals of square PQRS are congruent perpendicu
Afina-wow [57]
To show that the diagonals of square PQRS are congruent is to show that they are equal.
|PR| = sqrt((7 - (-4))^2 + (-5 - 0)^2) = sqrt(11^2 + (-5)^2) = sqrt(146)
|QS| = sqrt((-1 - 4)^2 + (-8 - 3)^2) = sqrt((-5)^2 + (-11)^2) = sqrt(146)

To show that they are perpendicular, then the product of their slopes is -1.
slope of |PR| = (-5 - 0)/(7 - (-4)) = -5/11
slope of |QS| = (-8 - 3)/(-1 - 4) = -11/-5 = 11/5
The product of their slopes = -5/11 * 11/5 = -1

To show that they are bisectors is to show that their midpoints are at the same point.
Midpoint of |PR| = ((7 - 4))/2, (-5 + 0)/2) = (3/2, -5/2)
Midpoint of |QS| = ((-1 + 4)/2, (3 - 8)/2) = (3/2, -5/2)
6 0
3 years ago
Read 2 more answers
All names that apply to 2/5
PilotLPTM [1.2K]
Rational Number, Real Number, Fraction, Decimal etc...
3 0
3 years ago
Read 2 more answers
Other questions:
  • If a car is worth ​$4900when it is 4years​ old, how old will it be when it is worth ​$2800​
    5·1 answer
  • you got 629581341 hamburgers when the restaurant seels one hundred million more what will be the answer?
    13·1 answer
  • What is compatible number to find two estimates that the quotient is between 1624÷3
    14·1 answer
  • What is the difference between an estimator and an ​estimate? A. An estimator is a function of a sample of data to be drawn rand
    14·1 answer
  • What is a equivalent fraction to 3/11
    5·2 answers
  • A square pyramid has a base with side lengths each measuring 40 inches. The pyramid is 21 inches tall, with a slant height of 29
    8·2 answers
  • Find the area of the rectangle ABCD. I need both green and grey box please.
    8·2 answers
  • Determine if a triangle can have the given side lengths. If yes, which type of triangle is formed by the side lengths. Choose th
    13·1 answer
  • What is the upper quartile of the data set shown?
    14·1 answer
  • 3 consecutive multiples of 7 are 777
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!