I WILL GIVE BRAINLEIST AND POINTS Complete the proof of the Law of Sines/Cosines.

Triangle ABC with side a between points B and C, side b between points A and C. Segment drawn from point C to point D where D is between points A and B, segment CD is labeled x.

Given triangle ABC with _1._ segment CD labeled x. Angles ADC and CDB are right angles by the definition of altitudes, making triangle ADC and triangle BCD right triangles. Using the trigonometric ratios sine of A equals x over b and sine of B equals x over a. Multiplying to isolate x in both equations gives x = b ⋅ sinA and _2._. We also know that x = x by the reflexive property. By the substitution property, _3._. Dividing each side of the equation by ab gives: sine of A over a equals sine of B over b.

1. altitude
2. b ⋅ sinB
3. b ⋅ sinB = a ⋅ sinA

1. altitude
2. a ⋅ sinB
3. b ⋅ sinA = a ⋅ sinB

1. right triangle
2. a ⋅ sinB
3. a ⋅ sinA = b ⋅ sinB

1. right triangle
2. b ⋅ sinb
3. b ⋅ sinA = a ⋅ sinB

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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answers

rauschg

rauschg · hand

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step-by-step explanation:

answer: 5100 just subtract

step-by-step explanation:

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