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4 years ago

What is the measure of i substract 45 from 135 i got 90 ans so is it right or wrong

Mathematics

2 answers:

Elena-2011 [213]4 years ago

8 0

Yes you are right. If you subtract 45 from 135 you get 90.

RoseWind [281]4 years ago

6 0

Yes it is correct .
45 plus 90 =135
which means that 135 - 45=90

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i am trying to put a fence around a garden that is in the shape of a regular hexagon. i know that the side of the garden is 6ft

finlep [7]

There are 6 sides to a hexagon and each side of the fence will be 6+2 = 8 feet

So you'll need 8*6 = 48 feet of fencing.

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3 years ago

Very confused! Help would be very much appreciated!

Studentka2010 [4]

I graphed the equation using an online graphing calculator and got the vertex of (-5, 49) therefore y = 49

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3 years ago

Elodia [21]

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3 years ago

Find the slope of the line through (–9, –10) and (–2, –5). A. –five-sevenths B. seven-fifths C. five-sevenths D. –negative seven

vredina [299]

Answer:

C 5/7

Step-by-step explanation:

We can find the slope of a line using

m = (y2-y1)/(x2-x1)

= (-5 - -10) /(-2 - -9)

= (-5 +10)/(-2+9)

5/7

8 0

3 years ago

How would you solve this? help.

Eddi Din [679]

Answer:

Center: (3,3)

Radius: $2\sqrt{5}$

Step-by-step explanation:

Midpoint and Distance Between two Points

Given two points A(x1,y1) and B(x2,y2), the midpoint M(xm,ym) between A and B has the following coordinates:

$\displaystyle x_m=\frac{x_1+x_2}{2}$

$\displaystyle y_m=\frac{y_1+y_2}{2}$

The distance between both points is given by:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Point (5,7) is the center of circle A, and point (1,-1) is the center of the circle B. Given both points belong to circle C, the center of C must be the midpoint from A to B:

$\displaystyle x_m=\frac{5+1}{2}=\frac{6}{2}=3$

$\displaystyle y_m=\frac{7-1}{2}=\frac{6}{2}=3$

Center of circle C: (3,3)

The radius of C is half the distance between A and B:

$d=\sqrt{(1-5)^2+(-1-7)^2}$

$d=\sqrt{16+64}=\sqrt{80}=\sqrt{16*5}=4\sqrt{5}$

The radius of C is d/2:

$r =4\sqrt{5}/2 = 2\sqrt{5}$

Center: (3,3)

Radius: $2\sqrt{5}$

8 0

3 years ago