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babunello [35]
3 years ago
7

Find the distance between the points (2, -9) and (-1, 4).

Mathematics
1 answer:
ollegr [7]3 years ago
6 0

Answer:

A. 13.34

Step-by-step explanation:

This is the formula d=√((x_2-x_1)²+(y_2-y_1)²)

Plug in

d=√(-1-2)² + (4+9)²

d= √9 + 169

d= √178

d= 13.34

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The sum of two numbers is 52 . The larger number is 2 less than twice the smaller number .What are the numbers
Nata [24]

Answer:

35.34 and 16.66

Step-by-step explanation:

Given data

let the numbers be x and y

the smaller number = x

the larger number = y

x+y=52--------1

<em>The larger number is 2 less than twice the smaller number</em>

y=2x-2-------2

put y= 2x-2 in eqn 1

x+2x-2=52

3x-2=52

3x=52-2

3x=50

x= 50/3

x= 16.66

put x=16.66 in eqn 1 to find y

x+y=52

16.66+y= 52

y=52-16.66

y= 35.34

Hence the numbers are

35.34 and 16.66

Check

35.34+16.66= 52

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That would be in scientific notation
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