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
Lera25 [3.4K]
4 years ago
13

Please help!! Double points! write the ratios for sin X and cos X (Image attached)

Mathematics
2 answers:
Orlov [11]4 years ago
6 0

Answer:

The ratio for sin(X) is \frac{\sqrt{119} }{12}

The ratio for cos(X) is \frac{5}{12}

Step-by-step explanation:

- The ratio of the sine of a right triangle is:

sin(\alpha)=\frac{opposite-side}{hypotenuse}

Since we need the ratio for angle X, \alpha =X. From the picture we can infer that the opposite side of X is \sqrt{119}. The hypotenuse (the side opposite to the right angle) is 12, so replacing the values:

sin(X)=\frac{\sqrt{119} }{12}

- The ratio of the cosine is:

cos(\alpha)=\frac{adjacent-side}{hypotenuse}

Similarly, \alpha =X, adjacent side = 5, and hypotenuse = 12, so

cos(X)=\frac{5}{12}

Nesterboy [21]4 years ago
6 0

Answer:

Sin X =√119/12

Cs X = 5/12

Step-by-step explanation:

It is given a right angled triangle.

<u>Points to remember</u>

Sin θ = Opposite side/Hypotenuse

Cos θ = Adjacent side/Hypotenuse

<u>To find the value of Sin X  </u>

Here X is an angle

Opposite side = √119

Hypotenuse = 12

Sin X = Opposite side/Hypotenuse = ZY/XY = √119/12

<u>To find the value of Cos X</u>

Adjacent side of X = 5

Cos X = Adjacent side/Hypotenuse = XZ/XY = 5/12

You might be interested in
A process manufactures ball bearings with diameters that are normally distributed with mean 25.1 mm and standard deviation 0.08
marta [7]

Answer:

(a) The proportion of the diameters are less than 25.0 mm is 0.1056.

(b) The 10th percentile of the diameters is 24.99 mm.

(c) The ball bearing that has a diameter of 25.2 mm is at the 84th percentile.

(d) The proportion of the ball bearings meeting the specification is 0.8881.

Step-by-step explanation:

Let <em>X</em> = diameters of ball bearings.

The random variable <em>X</em> is normally distributed with mean, <em>μ</em> = 25.1 mm and standard deviation, <em>σ</em> = 0.08 mm.

To compute the probability of a Normally distributed random variable we need to first convert the raw scores to <em>z</em>-scores as follows:

<em>z</em> = (X - μ) ÷ σ

(a)

Compute the probability of <em>X</em> < 25.0 mm as follows:

P (X < 25.0) = P ((X - μ)/σ < (25.0-25.1)/0.08)

                    = P (Z < -1.25)

                    = 1 - P (Z < 1.25)

                    = 1 - 0.8944

                    = 0.1056

*Use a <em>z</em>-table for the probability.

Thus, the proportion of the diameters are less than 25.0 mm is 0.1056.

(b)

The 10th percentile implies that, P (X < x) = 0.10.

Compute the 10th percentile of the diameters as follows:

P (X < x) = 0.10

P ((X - μ)/σ < (x-25.1)/0.08) = 0.10

P (Z < z) = 0.10

<em>z</em> = -1.282

The value of <em>x</em> is:

z = (x - 25.1)/0.08

-1.282 = (x - 25.1)/0.08

x = 25.1 - (1.282 × 0.08)

  = 24.99744

  ≈ 24.99

Thus, the 10th percentile of the diameters is 24.99 mm.

(c)

Compute the value of P (X < 25.2) as follows:

P (X < 25.2) = P ((X - μ)/σ < (25.2-25.1)/0.08)

                    = P (Z < 1.25)

                    = 0.8944

                    ≈ 0.84

*Use a <em>z</em>-table for the probability.

Thus, the ball bearing that has a diameter of 25.2 mm is at the 84th percentile.

(d)

Compute the value of P (25.0 < X < 25.3) as follows:

P (25.0 < X < 25.3) = P ((25.0-25.1)/0.08 < (X - μ)/σ < (25.3-25.1)/0.08)

                    = P (-1.25 < Z < 2.50)

                    = P (Z < 2.50) - P (Z < -1.25)

                    = 0.99379 - 0.10565

                    = 0.88814

                    ≈ 0.8881

*Use a <em>z</em>-table for the probability.

Thus, the proportion of the ball bearings meeting the specification is 0.8881.

4 0
3 years ago
Consider angle θ in Quadrant ll, where cos θ= -12/13. what's the value of sin θ​
IgorLugansk [536]

Answer:

5/13

Step-by-step explanation:

According to SOH CAH TOA

cos theta = adj/hyp = -12/13

Get the opposite using pythagoras  theorem

13^2 = (-12)^2 + opp^2

169 = 144 + opp^2

opp^2 = 169-144

opp^2 = 25

opp = 5

Get sin θ​

sin θ​ = opp/hyp

sin θ​ = 5/13

hence the value of  sin θ​ is 5/13

8 0
3 years ago
Pls hurry! i will give brainliest!!
Mashcka [7]

Answer:

43

Step-by-step explanation:

8 0
2 years ago
Se desea calcular el valor de la siguiente expresion 3 al 4
Anuta_ua [19.1K]

Answer:

Si lo entiendo bien la expresión será igual a 4/1

4 0
3 years ago
Please help me do this iready please i am saying it kindly
abruzzese [7]

Answer:

See below.

Step-by-step explanation:

The answer is each figure in group 2 has one face.

-hope it helps

6 0
2 years ago
Other questions:
  • Natalie and her friends decided to rent 4 learned at regular cost for a party.Ten people need to rent shoes,and 4 people are mem
    14·1 answer
  • How much would the mark up of 35% of $10.00 be?
    12·1 answer
  • A Christmas ornament is 50% off
    12·2 answers
  • Need help please.........thank you
    14·2 answers
  • Find the zeros of y = 4x2 – 12x – 16
    11·1 answer
  • Which object has a GREATER unit rate of change as shown in the graph?
    10·1 answer
  • PLEASE HELP QUICKLY !!!!!!!!!!!!!! I will give brainliest
    7·1 answer
  • a line is perpendicular to y=-2x+5 and intersects the point (-4,2). what is the equation of this perpendicular line?
    9·1 answer
  • !!MARKING BRAINLIEST FOR CORRECT!! A shoe store uses a ​40% markup for all of the shoes it sells. What would be the selling pric
    11·2 answers
  • Todd and Tim are exercising. Todd does 20 push-ups at the same time as Tim does 30 push-ups. When Todd does
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!