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Alisiya [41]
3 years ago
14

What is 7 divided by 7 times 56

Mathematics
2 answers:
Sedbober [7]3 years ago
8 0

Answer:

56

Step-by-step explanation:

allochka39001 [22]3 years ago
5 0

That would be 56, because following the order of operations, you would do 7 divided by 7 first. That would then result with one. I'm sure you would know what 1 multiplied by 56 would result with. 56.

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Find an equation for the perpendicular bisector of the line segment whose endpoints
TEA [102]

Answer:

y= -2x -8

Step-by-step explanation:

I will be writing the equation of the perpendicular bisector in the slope-intercept form which is y=mx +c, where m is the gradient and c is the y-intercept.

A perpendicular bisector is a line that cuts through the other line perpendicularly (at 90°) and into 2 equal parts (and thus passes through the midpoint of the line).

Let's find the gradient of the given line.

\boxed{gradient =  \frac{y1 -y 2}{x1 - x2} }

Gradient of given line

=  \frac{1 - ( - 5)}{3 - ( - 9)}

=  \frac{1 + 5}{3 + 9}

=  \frac{6}{12}

=   \frac{1}{2}

The product of the gradients of 2 perpendicular lines is -1.

(½)(gradient of perpendicular bisector)= -1

Gradient of perpendicular bisector

= -1 ÷(½)

= -1(2)

= -2

Substitute m= -2 into the equation:

y= -2x +c

To find the value of c, we need to substitute a pair of coordinates that the line passes through into the equation. Since the perpendicular bisector passes through the midpoint of the given line, let's find the coordinates of the midpoint.

\boxed{midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2})  }

Midpoint of given line

= ( \frac{3  -  9}{2} , \frac{1 - 5}{2} )

= ( \frac{ - 6}{2}  , \frac{ - 4}{2} )

= ( - 3 , - 2)

Substituting (-3, -2) into the equation:

-2= -2(-3) +c

-2= 6 +c

c= -2 -6 <em>(</em><em>-</em><em>6</em><em> </em><em>on both</em><em> </em><em>sides</em><em>)</em>

c= -8

Thus, the equation of the perpendicular bisector is y= -2x -8.

5 0
3 years ago
Find the volume of a cone with the radius of radius of 80 and height of 21
RoseWind [281]

Answer:

140672

Step-by-step explanation:

formula for cone volume=pi*r^2*h*1/3

80^2*3.14*21=422016

422016*1/3

=140672

5 0
3 years ago
Find the midpoint of points A(-6, -5) and B(4,3) graphically.
Zigmanuir [339]

Answer:

(-1,-1)

Step-by-step explanation:

4-6         3-5

-------   ,   ---------

 2               2

(-2/2,-2/2)=(-1,-1)

7 0
3 years ago
Q: Simplify. <br><br>1. 3^(n+1) - 3^n / 3^(n-1)​
igor_vitrenko [27]

Answer:

3^(n+1) - 3^n / 3^(n-1)​ = 6

7 0
2 years ago
I need it in a linear equation please i need help
klio [65]

Answer:

Caterer One: C = 55n

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Caterer Three: C = 35n + 800

Step-by-step explanation:

4 0
3 years ago
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