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konstantin123 [22]

3 years ago

14

What are the coordinates of vertex A of square ABCD?

2 answers:

charle [14.2K]3 years ago

6 0

Answer:

D

Step-by-step explanation:

bonufazy [111]3 years ago

5 0

ABCD is a square . if the coordinates of three of its vertices are A(-1,2a), B(a,2a), C(a,0), find the coordinates of D. BC is obviously 2a (it's a vertical line) then AB must be 2a (notice AB is horizontal) so BC = AC because it is a square 2a = a+1 a=1

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Ms. Chibbaro asked her students to find an expression equivalent to 7 - 3(4 - 2x) - 10x Jon had the work shown to the Left on hi

rjkz [21]

Answer:

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Step-by-step explanation:

Given

$Expression: 7 - 3(4 - 2x) - 10x$

Required

Determine Jon's error and make corrections.

Also, give the equivalent of the expression

The question has missing details because Jon's workings is not listed.

One mistake student's make during multiplications that involves minus (-) and plus (+) is in the signs.

So, watch out for the signs to know where the error is.

However, I'll give an equivalent of the given expression

$7 - 3(4 - 2x) - 10x$

Open Bracket

$7 - 12 + 6x - 10$

Collect Like Terms

$7 - 12 - 10 + 6x$

$-15 + 6x$

<em>Hence, the given expression is equivalent to </em> $-15 + 6x$ <em></em>

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