3 years ago

PLZ HELP I HAVE TO FINISH THIS IN 35 MINUTES! (30 POINTS)

1 answer:

5 0

A rational inequality is an inequality that contains a rational expression, Inequalities such as 32x>1, 2xx−3<4, 2x−3x−6≥x, and 14−2x2≤3x

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A grocery store sells a bag of 5 avocados for $4. What is the unit cost of each avocado?

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Find 5 rational numbers between -3/4 and 5/6

insens350 [35]

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Step-by-step explanation:

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3 years ago

Ab and bc form a right angle at point B. if a= (-3,-1) and B= (4,4) what is the equation of BC?

Vesnalui [34]

Answer:

Option C $-7x-5y=-48$

Step-by-step explanation:

step 1

Find the slope of AB

we have

A(-3,-1) and B(4,4)

The slope m is equal to

$m=(4+1)/(4+3)$

$m=5/7$

step 2

Find the slope of BC

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

$m1*m2=-1$

we have

$m1=5/7$

substitute

$5/7*m2=-1$

$m2=-7/5$

step 3

Find the equation of the line into slope point form

$y-y1=m(x-x1)$

we have

$m=-7/5$

$B(4,4)$

substitute

$y-4=-(7/5)(x-4)$

Multiply by 5 both sides

$5y-20=-7x+28$

$7x+5y=28+20$

$7x+5y=48$

Multiply by -1 both sides

$-7x-5y=-48$

3 0

3 years ago