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Travka [436]
3 years ago
5

when directed to solve a quadratic equation by completing the square, Sam arrived at the equation (x-(5/2))^2= (13/4). which equ

ation could have been the original equation given to Sam?
Mathematics
1 answer:
Tasya [4]3 years ago
7 0
We have the following expression:
 (x- (5/2)) ^ 2 = (13/4)
 Let's rewrite the given expression:
 x ^ 2 - 5x + 25/4 = (13/4)
 x ^ 2 - 5x + 25/4 - 13/4 = 0
 x ^ 2 - 5x + 12/4 = 0
 x ^ 2 - 5x + 3 = 0
 Answer:
 
the original equation given to Sam could have been:
 
x ^ 2 - 5x + 3 = 0
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NECESITO AYUDA EN ESTOS EJERCIICIOS DE MATES NIVEL SEGUNDO ESO
Kay [80]

Answer: 49/60

Step-by-step explanation:

(1/3+2/5)-1/4-(5/6-7/6)

Primero  (5/6-7/6)

5/6-7/6=-2/6

1/3+2/5-1/4-(-2/6)

1/3+2/5-1/4+2/6

2/6=1/3

1/3+2/5-1/4+1/3

2/3+2/5-1/4

2/3=10/15

2/5=6/15

10/15+6/15-1/4

16/15-1/4

16/15=64/60

1/4=15/60

64/60-15/60=49/60

4 0
3 years ago
3x-4y=28 find slope intercept form
Helen [10]
First you have to subtract 3x and then divide everything by -4 to get y=3/4x-7
6 0
3 years ago
This one is really confusing me
AleksandrR [38]

Answer:

D) 9

Step-by-step explanation:

8 + 9 + 10 + 7 =39

48 - 39 = 9

3 0
3 years ago
Read 2 more answers
Can anyone help?............
sertanlavr [38]

Answer:

52+46

Step-by-step explanation:

3 0
3 years ago
(HOPEFULLY WORTH 20 POINTS IF NOT ITS 10)
gulaghasi [49]
Let C be the total charge and t be the rental time in hours.
C = ht + 43
Plugging the given values into the equation, we get:
64 = 7h + 43
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The hourly fee is $3.00 per hour.
7 0
3 years ago
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