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3 years ago

You paint 0.5 wall in 0.25 hour. At that rate, how long will it take you to paint one wall?

2 answers:

6 0

Answer=0.5 hours
0.5 1
_____ =_____
0.25hr x hr

cross multiply
0.5x=0.25
divide both sides by 0.5
x=0.5 hr

It will take 0.5 hours to paint one wall

Masteriza [31]3 years ago

6 0

It will take 0.5 hour or half an hour to paint the wall

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aleksandrvk [35]

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2 years ago

Write an equation of the perpendicular bisector of the line segment whose endpoints are (−1,1) and (7,−5)

icang [17]

The equation is $y = \frac{3}{2} x - \frac{11}{2}$

<u>Explanation:</u>

We have to first find the mid-point of the segment, the formula for which is

$(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )$

So, the midpoint will be $(\frac{-1+7}{2} , \frac{1-5}{2} )\\\\$

= $(3,-2)$

It is the point at which the segment will be bisected.

Since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula $\frac{y_2-y_1}{x_2-x_1}$

The slope is $\frac{-5-1}{7+1}$ = $-\frac{2}{3}$

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of $-\frac{2}{3}$ is $\frac{3}{2}$

To write an equation, substitute the values in y = mx + c

WHere,

y = -1

x = 3

m = 3/2

Solving for c:

$-1 = \frac{3}{2} X 3 + c\\\\-1 = \frac{9}{2}+c\\ \\c = \frac{-2-9}{2} \\\\c = \frac{-11}{2}$

Thus, the equation becomes:

$y = \frac{3}{2} x - \frac{11}{2}$

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3 years ago

PLEASE HELP ME

shtirl [24]

Answer:

A ✓5 is the irrational number.

Step-by-step explanation:

Have a good day. :)

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