Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
<u><em>The complete question is</em></u>
Consider this right triangle. 21 29 20 Write the ratio equivalent to: Sin B - CscA- Cot B
The picture of the question in the attached figure
Part 1) Write the ratio equivalent to: Sin B
we know that
In the right triangle ABC
----> by SOH (opposite side divided by the hypotenuse)
substitute the values

Part 2) Write the ratio equivalent to: Csc A
we know that
In the right triangle ABC

-----> by SOH (opposite side divided by the hypotenuse)
substitute the values

therefore

Part 3) Write the ratio equivalent to: Cot A
we know that
In the right triangle ABC

-----> by TOA (opposite side divided by the adjacent side)
substitute the values

therefore

Option B: 1
Option C: 6
Solution:
Let us first define the vertical angle theorem:
Vertical angle theorem:
<em>If two lines are intersecting each other, then the vertically opposite angles are congruent.</em>
To find angle 7 is equal to which angle:
Angle 1 and angle 7 are vertically opposite angles.
Therefore by vertical angle theorem, angle 7 = angle 1
Option B is the correct answer.
To find angle 4 is equal to which angle:
Angle 4 and angle 6 are vertically opposite angles.
Therefore by vertical angle theorem, angle 4 = angle 6
Option C is the correct answer.
Answer:do you have a photo available? It’s fine if not
Step-by-step explanation:
You will need 252 mL of pure water to obtain 0.25 mL of the desired 25% solution.
If we add X amount of water to the solution, the total amount of solution is 375+X.
And that must be 25%.
<h3>
What is the amount of solute in the current solution?</h3>
The amount of solute in the current amount of solution is
0.6(375)=225.
That amount won't change by adding water.
So we set up the equation so that the amount of solute divided by the new total amount of solution equals 25%.
225/(375+X)=0.25
cross multiply and solve
225/0.25=(375+X)
900-375=X
X=525
The pure water will you need to add to obtain the desired solution is 525.
Then we check 225/(375+525)=0.25.
To learn more about the mixture problem visit:
brainly.com/question/24647756
#SPJ1
Doesn't make sense, it's a 48 degree angle if that helps.