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Alex73 [517]
3 years ago
6

Is there a solution to 2x^2+7x-4=0?

Mathematics
2 answers:
yulyashka [42]3 years ago
8 0
Ax^2+bx+c=0
always answer is:
-b+(b^2-4ac)/2a
and
-b-(b^2-4ac)/2a
IgorLugansk [536]3 years ago
3 0

Answer:

x= -8    x= 1

Step-by-step explanation:

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A shopkeeper marked the price of a radio as Rs. 5000. He sold it allowing a discount of 10% and made a profit Rs. 500. Find the
marissa [1.9K]
SP = MP - discount% of MP
= 5000 - 10/100 X 5000
= Rs4500
Profit = SP - CP
= 4500-500
= Rs 4000
Hope it helps!
3 0
3 years ago
- 6x +15 <br>Can anyone please show me the steps of solving this equation​
Vesna [10]

Answer:

-6x + 15 = - 69 which x = 14

Step-by-step explanation:

You cannot solve this equation. There is no equal sign anywhere. Either you mean

-6x = 15 in which case the answer is

-6x/-6 = 15/-6

x = - 2 1/2 or x= - 2.5

or you mean that you use the distributive property

- 3(2x + 5)

You may have left something out of this.

-6x + 15 = -  69

You can do it now that you have the complete equation. But you need the entire equation before you can answer the question.

Subtract - 15 from both sides.

-6x + 15 - 15 = -69 - 15

-6x = - 84

Divide by - 6

-6x/-6 = - 84/-6

x = 14

But what you want is

-6x + 15

-6*14 + 15

-84 + 15

-69

-6x + 15 = - 69

when x = 14 which is usually what you are asked.

5 0
2 years ago
HELP ME PLEASSDJDJXKKCKCKC
attashe74 [19]

the answers is

1 Inch = 4 Feet


Here is the explanation -


the side of square = 12


length of Ground - 48


ratio of length = 12 /48


= 1/4


1 : 4

bye

7 0
2 years ago
Bob has $25 to spend on the school field trip after paying $14 for the cost of the field trip and $5.25 for lunch how much will
Ganezh [65]
$5. 75 is the amount of money Bob will have left.
4 0
3 years ago
Read 2 more answers
Can someone help me<br> Pls
zalisa [80]

Answer:

11 17/21

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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