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ELEN [110]
3 years ago
10

Solve using the quadratic formula: (Standard form 1st!) 2x^2-2x=24

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

4, -3

Step-by-step explanation:

The quadratic formula is \frac{-b+-\sqrt{b^2-4ac} }{2a}.

When using the formula for both the negative and positive value of the sqrt, you will get:

x = 4, -3

You might be interested in
Subtract 5x−2 ​​from​ −3x+4 .
Elanso [62]

Answer:

-8x +6

Step-by-step explanation:

5x−2 ​​from​ −3x+4 .

This means take the 2nd number and subtract the 1st

-3x +4

-( 5x -2)

----------------

Distribute the negative sign

-3x +4

- 5x +2

----------------

-8x +6

5 0
3 years ago
Rachel has bought 24 pounds of dog food. She feeds her dog 3/4 pounds for each meal. For how many meals will the food last?
lilavasa [31]

Answer:

32 meals

Step-by-step explanation:

24/.75 = 32

- Please let me know if you need a further explanation

7 0
3 years ago
Which graph is the solution to the inequality –3x − 6 > 9?
Sati [7]

Answer:

See attachment

Step-by-step explanation:

First solve this like a normal equation:

-3x - 6 > 9

Add 6 to both sides:

-3x > 9 + 6

-3x > 15

Divide by -3 and remember to switch the inequality sign:

x < 15/(-3)

x < -5

Think about the graph of x = -5. It's a vertical line crossing the y-axis at x = -5. Now, we have x is less than -5. That means all the values less than -5 should be viable solutions. So, shade the part of the graph to the left of the vertical line.

Also, since we have x < -5 and not x ≤ -5, the line should be dotted.

See graph attached.

<em>~ an aesthetics lover</em>

5 0
3 years ago
Y=2/x-3 make x the subject​
svp [43]
Multiply both sides by x - 3 to get :

y(x - 3) = 2

yx - 3y = 2

yx = 2 + 3y

x = (2 + 3y)/y

Hope this helps! Any questions let me know :)
7 0
3 years ago
Determine if each pair of expressions is equivalent. If so state the property shown
Elis [28]
They are not equivalent.

24/6= 4,
4/2=2

6/24= 0.25,
0.25/2= 0.125

2 does not equal 0.125
Final answer: Not equivalent
8 0
3 years ago
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