Answer:
d = √149 = 12.2
Step-by-step explanation:
Distance between 2 coordinates: d = √[(x2 − x1)^2 + (y2 - y1)^2]
d = √[(0 - 7)^2 + (2 - -8)^2]
d = √[(-7)^2 + (10)^2]
d = √[49 + 100]
d = √149 = 12.2
Answer:
1/49
Step-by-step explanation:
Answer:
x = 
± 
Step-by-step explanation:
Given
x² - 7x + 9 = 0 ( subtract 9 from both sides )
x² - 7x = - 9
Solve using the method of completing the square
add ( half the coefficient of the x- term)² to both sides
x² + 2( - )x + 
= - 9 +
(x - )² = 
( take the square root of both sides )
x - = ± 
= ± ( add
x = ± = 
Answer:
6.75 hrs are missing
Step-by-step explanation:
First, change all fractions into decimals:
8 = 8
7 1/4 = 7 + 0.25 = 7.25
8 1/2 = 8 + 0.50 = 8.50
Next, add all numbers gotten together:
8 + 7.25 + 8.50 = 23.75
Subtract the number gotten from the total
30.5 - 23.75 = 6.75
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