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Arte-miy333 [17]
3 years ago
14

Which expression is equivalent to -2-77

Mathematics
1 answer:
attashe74 [19]3 years ago
3 0
What’s the answer choices?
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What are the solution of the equation x^2- 4x -32 = 0 ?show your work and justify each step.
soldier1979 [14.2K]
X^2-4x-32=0

(x+a)(x+b)

x^2-(a+b)x+ab

a+b=4
ab=-32

a=-b+4
(-b+4)b=-32

-b^2+4b=-32
b^2-4b-32=0
b=8,-4

If b=8, a=-4
If b=-4, a= 8

Plug in a and b to (x+a)(x+b)
x= -4, 8
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3 years ago
Write the equation of the line through (5,9) and (5, -3)
seropon [69]

Answer:

undefined

Step-by-step explanation:

This is a vertical line and cannot be written in any form.

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3 years ago
Just before midnight, the first musher, William “Wild Bill” Shannon, left Nenana. It was -50ºF. When he took his first break, it
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-62°F

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4 0
3 years ago
Read 2 more answers
Two trains, train A and train B simultaneously depart station A and station B. Station A and station B are 252.5 miles apart fro
Crank
<span>time is equal to  velocity divide distance. ...... t=v/d  

</span> time = v (252.5) / d ( 378.2) = .67 hours --> 40 min ....... 40 -8 = 32 min 
<span>
add 252.5 +124.7 =378.2
1 hour = 60 min  thus, 60 min * .67 hours = 40 min 

rebember that 8 min already passed  thats why 40 - 8 =32 min </span>
8 0
4 years ago
20 POINTS FOR WHO CAN SOLVE THIS!
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The answer for the question is D!!
7 0
4 years ago
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