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Mathematics 17 Online
OpenStudy (unofficialllyy):

Would someone be willing to check 12 math questions that I did, and help me with the last one? I will medal and fan :)

OpenStudy (unofficialllyy):

1. Line BC contains points B (4, −5) and C (3, 2). Line DE contains points D (2, 0) and E (9, 1). Lines BC and DE are My answer is: Perpendicular

OpenStudy (unofficialllyy):

@Loser66 Is this one right?

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

2. Find x value for the point that splits segment CD in half if point C is located at (−2, 4) and point D is located at (3, 7). My answer is: 5.5

OpenStudy (loser66):

The question is x value, and you have formula to find it, recheck.

OpenStudy (loser66):

YOur answer is y value, not x

OpenStudy (unofficialllyy):

0.5?

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

3. Point A is located at (0, 4) and point B is located at (−2, −3). Find the x value for the point that is 1 over 4 the distance from point A to point B. My answer is: -0.5

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

4. Line AB contains points A (8, −4) and B (1, −5). The slope of line AB is My answer is: -7

OpenStudy (loser66):

check, not that

OpenStudy (unofficialllyy):

\[\frac{ -1 }{ 7 }\]

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

5. An isosceles triangle has My answer: At least two congruent sides

OpenStudy (unofficialllyy):

The other choices are Two sides that are perpendicular Three sides with the same length Two sides that are parallel

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

The slope formula can be used to prove that a quadrilateral has My answer: Parallel sides

OpenStudy (unofficialllyy):

The other choices are Congruent sides Proportional angles Congruent angles

OpenStudy (loser66):

nope, this is called quadrilateral but there is no // sides in it. |dw:1432416031064:dw|

OpenStudy (unofficialllyy):

So I'm not sure what it would be.

OpenStudy (loser66):

congruent angles

OpenStudy (unofficialllyy):

Okay The equation of line GH is y = 4x − 3. Write an equation of a line perpendicular to line GH in slope-intercept form that contains point (2, 3). My answer: \[\frac{ -1 }{ 4 }x+\frac{ 7 }{ 2 }\]

OpenStudy (loser66):

yup

OpenStudy (unofficialllyy):

Quadrilateral ABCD has diagonals that are congruent and perpendicular to each other. What classification can be given to ABCD? I was stuck between square and rhombus. I think it's a rhombus though.

OpenStudy (loser66):

I am with you since no information about sides.

OpenStudy (loser66):

HOld on

OpenStudy (unofficialllyy):

Segment YW is an altitude of triangle XYZ. Find the area of the triangle. I'm not sure how to do this one

OpenStudy (loser66):

it is square because "diagonals congruent", in rhombus, we don't have this property |dw:1432416501371:dw|

OpenStudy (loser66):

Area = (1/2) base * height.

OpenStudy (loser66):

|dw:1432416637968:dw|

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