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2 years ago

15

the scale on a map se oanchows 5 centimeters equals 2 kilometers what nuumber of centimeters on the map represents an actual dis

tance of 5 kilometers

1 answer:

Igoryamba2 years ago

8 0

12.5 cm equals 5 km.

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Calculate the mean and variance of the sample data set provided below. show and explain your steps. round to the nearest tenth.

eimsori [14]

Mean = (14 + 16 + 7 + 9 + 11 + 13 + 8 + 10) ÷ 8 = 11

Variance =
[ (14-11)²+(16-11)²+(7-11)²+(9-11)²+(11-11)²+(13-11)²+(8-11)²+(10-11)² ]/7 = 9.71

Answer: 9.71

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3 years ago

How many lines of symmetry does a decagon have...? <br>A.0 <br>B.5 <br>C.10 <br>D.20

liraira [26]

The answer is C or 10

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2 years ago

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Which is less and why? -5 OR-6

Nimfa-mama [501]

-6. because -6 is farther away from 0 than -5

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2 years ago

On a coordinate plane, a line is drawn from Rock to Tree. The x- and y-axes are labeled feet. Rock is at (3, 2) and Tree is at (

-Dominant- [34]

Answer:

The second choice $(7.6,8.8)$

Step-by-step explanation:

The missing image is attached

We use the section formula:

$(x,y)=(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})$

We substitute $x_1=3,x_2=16,y_1=2,y_2=21$ and m=5, n=9

$(x,y)=(\frac{5*16+9*3}{5+9},\frac{5*21+5*2}{9+5})$

We simplify to get:

$(x,y)=(\frac{80+27}{14},\frac{105+10}{14})$

This simplifies to:

$(x,y)=(\frac{107}{14},\frac{125}{14})$

In decimals we get:

$(x,y)=(7.6,8.8)$

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2 years ago

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Domain of f(x)= square root of 9x

NemiM [27]

I hope this helps you

f (x)=3 square root of x

8 0

3 years ago