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alexgriva [62]
3 years ago
5

Plz solve this question. you don't have to solve step by step but just give me some hints​

Mathematics
1 answer:
levacccp [35]3 years ago
8 0

Answer:

u have to use derieved form of formula of sin and cos

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Solve. x 2 −5x−8=0 x2−5x−8=0 Enter your answers, as exact values, in the boxes. x = or x =
Sidana [21]

Answer:

x2-5x-8=0  

Step-by-step explanation:

Two solutions were found :

x =(5-√57)/2=-1.275

x =(5+√57)/2= 6.275

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2"   was replaced by   "x^2".  

Step by step solution :

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2-5x-8  

The first term is,  x2  its coefficient is  1 .

The middle term is,  -5x  its coefficient is  -5 .

The last term, "the constant", is  -8  

Step-1 : Multiply the coefficient of the first term by the constant   1 • -8 = -8  

Step-2 : Find two factors of  -8  whose sum equals the coefficient of the middle term, which is   -5 .

    -8 + 1 = -7  

    -4+  2 = -2  

    -2+  4 = 2  

    -1 +   8 = 7  

5 0
3 years ago
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Tiffany makes scarves and sells them at a neighborhood
Phoenix [80]
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I hope this helps!</span>
4 0
3 years ago
jason is saving up to buy a digital camera that costs $490.so far,he saved $175.he would like to buy the camera 3 weeks from now
Bogdan [553]
÷(490 - 175) \\  \frac{x}{y} 3
(490 - 175)÷ 3
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Trey is buying a computer on sale. The original
zhannawk [14.2K]
Divide it and get yo answer
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3 years ago
Which expression has a positive value?
Vikki [24]

Answer:

The answer is (-5)(-9).

Step-by-step explanation:

As you multiply 2 negative number together, it will equals to positive number :

(-5)×(-9) = 45

3 0
2 years ago
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