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Levart [38]
3 years ago
13

How do you simplify negative exponenets

Mathematics
1 answer:
Lerok [7]3 years ago
7 0

Answer:

By solving the exponent as if it were positive, then taking the inverse of the number.

For Example:

3^{-2} = 9^{-1} = 1/9\\\\2^{-3} = 8^{-1} = 1/8

x^{-4} = \frac{1}{x^{4}}

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ILL MARK BRAINLIST , pls help n
bearhunter [10]

Answer:

33

Step-by-step explanation:

{x}^{2}  - 5x  -  2 = 0 \\  \\ equating \: it \: with \\ a {x}^{2}  + bx + c = 0 \\ we \: find :  \\ a = 1 \\ b = -  5 \\ c =  - 2 \\  \\  {b}^{2}  - 4ac \\  =  {( - 5)}^{2}  - 4 \times 1( - 2) \\    = 25 + 8 \\   = 33 \\  \\ by \: quadratic \: formula \\  \\ x =  \frac{ - b \pm \sqrt{ {b}^{2} -4ac }   }{2a}  \\  \\ x =  \frac{ - ( - 5) \pm \sqrt{33}}{2 \times 1}  \\  \\ x =  \frac{ 5 \pm \sqrt{33}}{2}...(1)  \\  \\x =  \frac{ 5 \pm \sqrt{n}}{2}...(2)  (given)\\  \\ equating \: equations \: (1) \: and \: (2) \\  \\  \huge \red{ \boxed{n = 33}}

5 0
3 years ago
Cake recipe calls for 112 cups of flour, 1 cup of sugar, and 13 cup of milk.
snow_lady [41]

Answer:

person on top of me

Step-by-step explanation:

8 0
3 years ago
Use a z-Table to determine the percent of data specified.
kobusy [5.1K]
I think c I might be wrong tho :)
4 0
3 years ago
Read 2 more answers
A fishing lodge wants to build a new boat ramp. The slope of the ramp must be 8° to the horizontal. The total height of the bank
Likurg_2 [28]

Answer:

The length of the sloping section of the ramp is 20.12 m

Step-by-step explanation:

Given;

the total height of the bank, h = 2.8 m

The slope of the ramp must be 8° to the horizontal, i.e, θ = 8°

Let the length of the sloping section = L

let the horizontal distance between the height of the bank and sloping section = b

Thus, h, L and b forms three sides of a right angled-triangle, with L as the hypotenuse side, h  (height of the triangle) as the opposite side and b  (base of the triangle) as the adjacent side.

We determine L by applying the following formula;

Sinθ = opposite / hypotenuse

Sin θ = h / L

L = h / Sin θ

L = 2.8 / Sin 8

L = 2.8 / 0.13917

L = 20.12 m

Therefore, the length of the sloping section of the ramp is 20.12 m

6 0
3 years ago
Wha are the equations. of the asymptotes of the graph of the function f(x)=3x^2-2x-1/x^2+3x+10
Leviafan [203]
The asymptote is the line the graph comes close to but never touches, so if you graph it out you should be able to see it! Sorry I couldn't help any more but good luck

3 0
3 years ago
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