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kondaur [170]
3 years ago
8

Which of the following correctly shows the quadratic formula for the given equation? 3x2 - 6x + 8 = 0

Mathematics
1 answer:
frez [133]3 years ago
7 0
The quadratic formula is expressed as:

x = (-b +/- √(b^2 - 4ac) ) / 2a

where a, b and c are the coefficients of the quadratic equation with the form ax^2 + bx + c=0

Therefore, the quadratic equation would be:

a = 3
b = -6
c = 8

x = (-(-6) +/- √((-6)^2 - 4(3)(8) ) / 2(3)

Hope this helps.

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9(8f+7s) use s=3 and f=2
Margarita [4]
The answer is 333. put the 3 and the 2 in the correct spots. then multiply 8 and 2 which is 16 then 7 and 3 which is 21. then add which is 37. you would have to multiply 37 and 9 and you would get 333.
8 0
3 years ago
The perimeter of a rectangular field is 296 yards. if the length of the field is 79 yards, what is its width?
Len [333]
Perimeter of rectangle is 2L + 2W
perimeter is 296
length of field is 79

Solve
2L + 2W = 296
2(79) + 2W = 296
158 + 2W = 296
2W = 296 - 158 = 138
W = 138/2 = 69 yards
8 0
3 years ago
What fraction of a full turn is 120°?​
Gekata [30.6K]

Answer:

1/3

Step-by-step explanation:

360/120=3

7 0
3 years ago
Read 2 more answers
Which ordered pair is the solution to this system of equations?<br> y=2x-3 <br> y=7-0.5x
disa [49]

Answer:

(4, 5)

Step-by-step explanation:

y = 2x - 3

y = 7 - 0.5x

y is already isolated on both equations, set them equal to each other:

2x - 3 = 7 - 0.5x

add 3 to both sides:

2x = 10 - 0.5x

add 0.5x to both sides:

2.5x = 10

divide by 2.5:

x = 4

plug in 4 for x on either equation and solve for y:

y = 2(4) - 3

y = 8 - 3

y = 5

(4, 5)

7 0
3 years ago
Can somebody help me?
marshall27 [118]

Membership Fitness Charges:   $30.00  per Month

All Day Fitness Club Charges:    $22.00  per Month

Initiation Fee :     $80.00  


Equation:

30T         =        22T           +      80      ========>     T         =        10 Months

Lets solve your equation step-by-step.

30t        =        22t         +        80

Step 1: Subtract 22t from both sides.

30t      −         22t       =       22t        +       80       −       22t

8t          =          80

Step 2: Divide both sides by 8.

8t / 8                       =            80 / 8

Answer   ==========>            T             =              10 Months Will the total amount paid to the two fitness clubs will be the same.





Hope that helps!!!!!!!!!!!                                          : )



5 0
3 years ago
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