Dragan

1. Find y if the point (-6,y) is on the line that passes through (-1,7) and (3,-2).

|-1| + 3 = 4            7 + |-2| = 9

4 and 9 are the legs of a right triangle ABC

Let angle BAC be β           β = arctan(9/4) = 66.03751103º

|-6| + 3 = 9         ( this is a short leg of triangle ADE )

DE = AD * tan( β ) = 20.25

y = 20.25 - 2 = 18.25

81x - 1 + 100x = 180

x = 1 

PR = 100

Very complex question

1. In the diagram angle U=30 degrees, arc XY is 170 degrees, and arc VW is 110 degrees. Find arc WY in degrees. 

arc VX + arc WY = 80º          ( arc VX and arc WY are called intercepted arcs )

Important:   When a tangent and a secant, two secants, or two tangents intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.

(arc WY - arc VX) / 2 = 30º

arc WY = 70º   

Hello, Guest!

If radius   r = 4.25 then the diameter is 8.5?!?  It's not possible!!!! The diameter is over 12 units.

Angle (ACO) = arctan(3 / 12) = 14.03624347º

AD = [sqrt(3² + 12²)] / 2 = 6.184658438

AB = (AD) / cos(ACO) = 6.375

The radius of a circle is 6.375 units  

The answer is b

c = 14*cos(38º) 

I'll give you the answer but you have to solve it.

∠BAP = ∠ACB = ∠RAC = arctan( AB / AC ) 

Side p =  24 cm.

Side q ≈  13.266 cm.            q = sqrt(24² - 20²)

Side r =  20 cm.

Write the trigonometric ratios, in simplified form, for angle R and angle Q.

sin R  = r / p

cos R  = q / p

tan R  = r / q

sin Q  = 

cos Q  = 

tan Q  = 

You can do the last three.

This question has been answered!!!

https://web2.0calc.com/questions/can-someone-help-me-soon

Angle BDC = 45º

1/    Find BD

2/    Find BO

3/    Find DO

4/    Find angle ODM

5/    Angle NDC = ∠BDC - ∠ODM

6/    NC = tan(∠NDC)

Area = 1/2( NC * DC )