Sarita has to solve the problem below for homework.

2 x + 3 y = 25. 4+ 2 y = 22.

Which variable should she choose to solve for so that she can use substitution to solve the system?

Sarita should solve for y in the second equation because the coefficients can be reduced by a common factor to eliminate the coefficient for y.

Sarita should solve for x in the first equation because the coefficients can be reduced by a common factor to eliminate the coefficient for x.

Sarita should solve for y in the first equation because the coefficients can be reduced by a common factor to eliminate the coefficient for y.

Sarita should solve for x in the second equation because the coefficients can be reduced by a common factor to eliminate the coefficient for x.

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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17

step-by-step explanation:

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°