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
svet-max [94.6K]
3 years ago
14

Find the cosine of angle Y

Mathematics
2 answers:
Scrat [10]3 years ago
7 0
Cosine = adjacent ÷ hypotenuse 

So the cosine of ∠y would equal 64/80 
64 being the adjacent side 
And 80 being the hypotenuse

cos(y) = 64/80 = 4/5

The answer would be 4/5 or 80°
Vladimir79 [104]3 years ago
5 0
The cosine of angle y would be equal to the length of the adjacent side over the length of the hypotenuse. 

cos(y) = \frac{64}{80} = \frac{4}{5}
You might be interested in
Frances has 4 square baking dishes. Each pan is 7 inches × 7 inches × 2 inches. Which expression will give her the total volume
julia-pushkina [17]

Answer:

D. (7^2 X2) x 4

The equation inside the parenthesis finds the volume of one pan and then that is multiplied by 4 which is the total number of pans. This will find the volume of all 4 pans.

5 0
3 years ago
Which is the graph. or y=1/2x + 1? please hurryyyyyy!
ololo11 [35]

Answer:

Graph 4

Step-by-step explanation:

It crosses at 1 (y-intercept) and has a slope of 1/2

6 0
3 years ago
Graph ARST with vertices R(6, 6), S(3, -6), and T(0, 3) and its image after a
padilas [110]

Answer:

The answer is the second figure and the vertices of Δ R'S'T' are:

R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

Step-by-step explanation:

* Lets revise some transformation

- If point (x , y) reflected across the x-axis

 ∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

 ∴ Its image is (-x , y)

- If point (x , y) reflected across the line y = x

 ∴ Its image is (y , x)

- If point (x , y) reflected across the line y = -x

 ∴ Its image is (-y , -x)

- Now we can solve the problem

∵ R = (6 , 6) , S = (3 , -6) , T = (0 , 3), they are the vertices of ΔRST

- The triangle RST is reflected over the y-axis

- According to the rule above the signs of x-coordinates will change

∵ R = (6 , 6)

∴ Its image is (-6 , 6)

∵ S = (3 , -6)

∴ Its image is (-3 , -6)

∵ T = (0 , 3)

∴ Its image is (0 , 3)

* Now lets look to the figure to find the correct answers

- The image of Δ RST is ΔR'S'T'

∵ The vertices of the image of ΔRST are:

  R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

* The answer is the second figure

7 0
3 years ago
What is the factored form of the expression? 4x^2-81y^2
Tasya [4]
4x^2-81y^2 

(2x)^2-(9y)^2
 

(2x+9y)(2x-9y)
4 0
3 years ago
Read 2 more answers
Find the area in square inches of the figure shown.
djverab [1.8K]

Answer:

8 * 17 = 136

39 * 36 = 1404

1482 + 136 = 1540

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • How do you find the answer for f(5) when f(x)= -3x^4+7x^2-2
    11·1 answer
  • Solve, showing all work: (5x2+3x+4) − (2x2+5x-1)
    10·1 answer
  • There are 6 horses in the barn what is the ratio of horse ears to horse feet
    10·2 answers
  • Choose the value of x that makes the open sentence true 40-x^2 < 2x+15.
    7·2 answers
  • 50 POINTS!<br><br> What is the volume of this?
    14·2 answers
  • Factorise x squared - 12x + 36
    14·1 answer
  • What's (7.3 x 10^-1) (.004) in standard notation
    12·2 answers
  • Measurement of angle q
    15·1 answer
  • What volume of fluid does a patient receive in 12 hours with a fluid rate of 24 mL/hr?
    6·2 answers
  • Can someone please help me find the answer to this question?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!