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LUCKY_DIMON [66]
3 years ago
8

4- What are the different waysto solve a quadratic? List examples of each

Mathematics
1 answer:
TiliK225 [7]3 years ago
8 0
I know of two ways to solve quadratic equations. The first is through factoring. Let us take the example (x^2)+2x+1=0. We can factor this equation out and the factors would be (x+1)(x+1)=0. To solve for the roots, we equate each factor to 0, that is

x+1=0; x+1=0

In this case, the factors are the same so the root of the equation is

x=1.

The other way is to use the quadratic formula. The quadratic formula is given as [-b(+-)sqrt(b^2-4ac)]/2a where, using our sample equation above, a=1, b=2 and c=1. Substitute these to the formula, and you will get the same answer as the method above.
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Share £480 in the ratio 2:3:7
aleksandr82 [10.1K]
£480

2:3:7 =  2+3+7  = 12

 2
--- 0f £480 = £80
12


 3
--- of £480 = £120
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 7
--- of £480 = £280
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answer =  £80 : £120 : £280
5 0
4 years ago
Hugh made a recipe that yields 8 and 1 over 2 cups. If each serving is 1 over 4 cup, which expression will help Hugh determine t
liraira [26]
The answer is going to be 8 and 1 over 2+1 over 4 
6 0
4 years ago
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What is 40% of 80? Please.i need to know​
svlad2 [7]

Answer:

32 is 40% of 80.

Step-by-step explanation:

80×4÷10=320÷10=32

6 0
3 years ago
Please please help!!!
bija089 [108]

Answer:

x= 13.74712574

Step-by-step explanation:

Since we know 2 legs of the right triangle, we need to use tan

tan theta = opposite side/ adjacent side

tan 58 = 22 /x

Multiply by x

x tan 58 = (22/x)*x

x tan 58 = 22

Divide by tan 58

x tan 58 / tan 58 = 22/tan 58

x = 22 /tan 58

x= 13.74712574


5 0
3 years ago
What is the decimal equivalent of the fraction 8/15
Serjik [45]

8 divided by 15 is 0.533333...

If you have any further questions feel free to ask.

Hope this helps.

7 0
3 years ago
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