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svet-max [94.6K]
3 years ago
14

Add the quotient of 120 and 60 to the quotient of 72 and 9

Mathematics
1 answer:
disa [49]3 years ago
7 0
It is 261 because 120+60=180+72=252+9=261.
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OverLord2011 [107]
1. 1.05^11*105= answer c
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3 years ago
A downtown building is 880 feet tall. Ana makes a scale model of the building at 1:440 of its actual size how tall is the model?
Olenka [21]

Answer:

2 feet

Step-by-step explanation:

880/440 = 2

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3 years ago
What's the equation of the line that's a perpendicular bisector of the segment connecting C (6, –12) and D (10, –8)? answers: A)
vitfil [10]

Answer:

A

Step-by-step explanation:

Perpendicular bisector of a line divides the line into 2 equal parts and it is perpendicular to the line.

First let's find the midpoint of CD. The point is where the perpendicular bisector will cut through the line.

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

Thus, midpoint of CD

= ( \frac{6 + 10}{2} , \frac{ - 12 - 8}{2} ) \\  = ( \frac{16}{2} , \frac{ - 20}{2} ) \\  = (8, - 10)

Gradient of line CD

=  \frac{y1 - y2}{x1 - x2}  \\  =  \frac{ - 12 -  ( - 8)}{6 - 10}  \\  =  \frac{ - 12 + 8}{ - 4} \\  =  \frac{ - 4}{ - 4}  \\  = 1

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

gradient if perpendicular bisector(1)= -1

gradient of perpendicular bisector= -1

y=mx +c, where m is the gradient and c is the y-intercept.

y= -x +c

Subst a coordinate to find c.

<em>Since the perpendicular bisector passes through the point (8, -10):</em>

When x=8, y= -10,

-10= -8 +c

c= -10 +8

c= -2

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

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Answer:

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Mark bought two candy bars and a soda for $3.96. If each candy bar cost $1.10 how much did the soda cost?
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Answer:

$1.76

Step-by-step explanation:

$1.10+$1.10 = $2.2

$3.96 - $2.2 = $1.76

6 0
2 years ago
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