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Contact [7]
3 years ago
9

Find an equation for the perpendicular bisector of the line segment whose endpoints are (−3,4) and (−7,−6).

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
7 0

Answer:

She's right, praise jeebus :3

Step-by-step explanation:

sesenic [268]3 years ago
5 0

Answer:

y=-\frac{2}{5}x-3

Step-by-step explanation:

First, you must find the midpoint of the segment, the formula for which is (\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2}). This gives you (-5,-1) as the midpoint. This is the point at which the segment will be bisected.

Next, 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}}, which gives us a slope of \frac{5}{2}.

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of \frac{5}{2} is -\frac{2}{5}.

We now know that the perpendicular travels through the point (-5,-1) and has a slope of -\frac{2}{5}.

Solve for b in y=mx+b.

y=mx+b\\-1=-\frac{2}{5}(-5)+b\\-1=2+b\\-3=b\\b=-3

Therefore, the equation of the perpendicular bisector is  y=-\frac{2}{5}x-3.

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Last year, 20,820 people attended a kite festival. This year, 19779 people attended it. If attendance continues to decrease by t
ICE Princess25 [194]

Well you start by dividing 19779 by 20820 to see the percent of people compared to last year (it being 95%). Then you take 19,779 and multiply it by the same percentage, or 0.95. That means that there should be 18790 (it's technically 18790.1 but since that's people you round to the nearest whole number).

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3 years ago
If F(x) = x-1, which of the following is the inverse of F(x)?
vivado [14]

Answer:

f^-1(x) = x+1

Step-by-step explanation:

y = x-1

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6 0
3 years ago
1. A student invests $500 in a savings account that earns 4% interest per
bixtya [17]

Answer:

The equation can be used to determine the amount of money S(t)  that her savings account has after t years is S(t)=500(1.04)^t

Step-by-step explanation:

A student invests $500 in a savings account

Principal = $500

Rate of interest = 4% = 0.04

We are supposed to find equation can be used to determine the amount of money S(t)  that her savings account has after t years

Formula : A=P(1+r)^t

Where A is the amount after t years =S(t)

t = time

r = rate of interest in decimals =0.04

P = Principal=500

Substitute the value in the formula :

So, S(t)=500(1+0.04)^t

S(t)=500(1.04)^t

Hence The equation can be used to determine the amount of money S(t)  that her savings account has after t years is S(t)=500(1.04)^t

6 0
3 years ago
Find the range. 83, 71, 62, 86, 90, 95, 61, 60, 87, 72, 95, 74, 82, 54, 99, 62, 78, 76, 84, 92
galina1969 [7]

Answer: 45

Step-by-step explanation: The range is the difference between the greatest number in the data set and the least number in the data set which in this case is 99 - 54 or 45. So the range of this data set is 45.

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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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