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KiRa [710]
3 years ago
12

Rationalize the denominator and simplify.

Mathematics
1 answer:
Irina18 [472]3 years ago
7 0

Answer:

\frac{3 \sqrt{2}  - 2 \sqrt{3} }{3 \sqrt{2}  + 2  \sqrt{3}  }   \times  \frac{3 \sqrt{2}  - 2 \sqrt{3} }{3 \sqrt{2}  - 2 \sqrt{3} }  \\  \\  =   \frac{18 + 12 - 12 \sqrt{6} }{18 - 12}  \\  \\  =  \frac{30 - 12 \sqrt{6} }{6}  \\  \\  = 5 - 2 \sqrt{6}

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I need this for extra credit please!!
noname [10]
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6 0
3 years ago
after 1 second the ball is 76 feet in the air: after 2 seconds it is 144 feet in the air. Find the height of the function. h(x)=
MArishka [77]
General equation for height, h
h = ut + 0.5gt^2

at t=1s, h = 76 feet
76 = u*1 + 0.5*a*1^2
76 = u + 0.5a

at t=2s, h = 144 feet
144 = u*2 + 0.5*a*2^2
144 = 2u + 2a
72 = u + a

Subtract 2 equations
0.5a = -4
a = -8
u = 80

So the equation,
h(x) = 80t + 0.5*(-8) t^2
h(x) = 80t - 4t^2
4 0
4 years ago
(03.02 mc) the function f(x) = 1.50x 12.50 relates how much kelsey pays for digital service, f(x), to the number of movies, x, s
evablogger [386]
F(x) = 1.50x + 12.50
f(18) = 1.50(18) + 12.50
f(18) = 27 + 12.50
f(18) = 39.50 ....this is the amount Kelsey paid for 18 movies in 1 month
5 0
3 years ago
WILL MARK BRAINLIEST, PLEASE DON'T DO THOSE OFFSITE LINKS I KNOW BETTER THAN TO CLICK EM
Alexus [3.1K]

Answer:

A p

Step-by-step explanation:

We have

12x {}^{ - 3} y {}^{ - 1}

Remeber that

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

12 \frac{1}{x {}^{3} }  \frac{1}{y {}^{1} }

Now, plug in

So now we plug in -1 for x and 5 for y

12 \frac{1}{ { - 1}^{3} } \frac{1}{5 {}^{1} }

Simplify

-  \frac{12}{5}

A is the answer.

3 0
3 years ago
5. Find the time when:<br>Principal = Rs.6000, Total Amount = Rs.9000 and rate = 10% per annum.​
kirill115 [55]

Answer:

15years

Step-by-step explanation:

6000×10×t÷100=9000

600t=9000

t=9000÷600

t=15years

8 0
4 years ago
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