mathematics
princeevee:

i need some answers checked 2: Electric boogaloo

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

if they're both parallel to a third line that means lines1 and 2 must be parallel to each other, so true

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
princeevee:

7 months ago
Vocaloid:

huh the postulate normally assumes that you know the lines are parallel we don't know that yet, so we are stating that 2 is congruent to 6 6 is congruent to 8 therefore 2 is congruent to 8 which should be the transitive property

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

in general consecutive interior angles are not congruent, they'd be supplementary so false

7 months ago
princeevee:

7 months ago
princeevee:

7 months ago
Vocaloid:

hm, not quite, 6 and 12 are not corresponding angles (they would have to be in the same position and orientation) notice how 6 and 12 are on the outside side of the parallel lines, making them interior or exterior?

7 months ago
princeevee:

exterior

7 months ago
Vocaloid:

good so B

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

hm not quite CE = ED 5x + 80 = 7x - 2 solve for x, then plug back into AE = 4x + 5

7 months ago
princeevee:

x=41

7 months ago
Vocaloid:

good now plug that into 4x + 5

7 months ago
princeevee:

7 months ago
Vocaloid:

may I see what the proof is?

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

hm not quite 3x - 30 = 90 since its a right angle solve for x

7 months ago
princeevee:

40

7 months ago
princeevee:

7 months ago
Vocaloid:

|dw:1529873599319:dw| not quite, they don't have to be perpendicular, the angles just have to add up t o 180

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

hm x = 41 right so CE = 285 CD = 2*CE = 570 to account for both sides of the rectangle 570 + 570 = 1140 applying this same logic to AE AE = 169 AB = 2*169 = 338 338 + 338 = 676 so 1140 + 676 = 1816 (A)

7 months ago
Vocaloid:

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

since the end of the fence makes 90 degree angles w/ the sides of the fence by definition the sides of the fence are perpendicular to the end fence so B can't be the solution (we are looking for a false statement) any other ideas?

7 months ago
princeevee:

A?

7 months ago
Vocaloid:

if the rows of crops are parallel to the sides and the sides are perpendicular to the end of the fence therefore the rows of crops are perpendicular to the end of the fence making A a true statement so it cannot be the solution

7 months ago
Vocaloid:

let's look at statement C the original problem never states that rows of crops are parallel to the sides of the fence making C the solution

7 months ago
princeevee:

7 months ago
Vocaloid:

hm, not quite AE is 169 but it's asking for CD we solved that x = 41 right? so CD = 5x + 80 + 7x - 2 = ?

7 months ago
princeevee:

570

7 months ago
Vocaloid:

good so 570 = your sol'n

7 months ago
princeevee:

7 months ago
Vocaloid:

|dw:1529876293655:dw| if its perpendicular to the first line it has to be perpendicular to the second line if the two lines are parallel so true

7 months ago
princeevee:

7 months ago
Vocaloid:

because <1 and <2 are in the same orientation with respect to the transversal they are ~corresponding angles~

7 months ago
princeevee:

7 months ago
Vocaloid:

|dw:1529876838710:dw| not quite there's only one possible line that can be drawn through P and be perp. to line l

7 months ago
princeevee:

7 months ago
Vocaloid:

for a y-intercept, the x-coordinate must be 0 so it can't be A

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

hm not quite to find the y-intercept, let x = 0 and solve for y in 3x + 4y = 12

7 months ago
princeevee:

4.

7 months ago
Vocaloid:

3(0) + 4y = 12 4y = 12 y = ?

7 months ago
princeevee:

8

7 months ago
Vocaloid:

4 is being multiplied by y so you have to divide both sides by 4 not subtract

7 months ago
princeevee:

3.

7 months ago
Vocaloid:

good so 3 = your sol'n

7 months ago
princeevee:

7 months ago
princeevee:

hang on, i actually think this is zero

7 months ago
Vocaloid:

a horizontal line has slope 0 not undefined

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

hm not quite remember that a vertical line only has an x not a y take the standard form equation Ax + By = C and replace y with 0

7 months ago
princeevee:

7 months ago
Vocaloid:

|dw:1529878258957:dw| |dw:1529878273213:dw| try to apply this logic to your problem to calculate the slope m

7 months ago
princeevee:

so just 8/-2

7 months ago
princeevee:

-4

7 months ago
Vocaloid:

careful with your signs (8-0)/(0 - (-2)) = 8/2 not 8/-2 so 4 not -4

7 months ago
princeevee:

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

that's point slope form standard form should look like Ax + By = C

7 months ago
princeevee:

so D

7 months ago
Vocaloid:

good

7 months ago
princeevee:

7 months ago
Vocaloid:

not quite if the equation is y = mx that means it has to pass through the point (0,0)

7 months ago
Vocaloid:

which of the four lines crosses the origin?

7 months ago
Vocaloid:

notice how only b crosses (0,0) so only line b can be the correct sol'n

7 months ago