You mean "mi", not "m" (yessss, FINALLLLYYY, correct CPhill! I was starting to think that you were a robot but somehow managed to check the tickbox of I'm human.)
This question can be turned into a quadratic equation.
x^2 + 10x + (25 - 8) = 0
x^2 + 10x + 17 = 0
Now we use the Quadratic formula
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a} \)
Using the formula, we can find the value of x which will be
x=−5+2√2 or x=−5−2√2
However, the question asked for the smallest value which is −5−2√2.
Hope that helps :) !!!
🙃🙃👌
Area of shaded sector = (1/2)(12^2) (1.7 rads) = 122.4 cm^2
Area of triangle = (1/2)(12^2) sin ([2pi - 1.7 - 2.4] rads) ≈ 58.92 cm^2
Total shaded area ≈ (122.4 + 58.92) cm^2 = 181.32 cm^2
Thanks! That's correct. Your a life saver 😭🤚🏽
(15/32)*100=46.876%
The Question says that there are 32 people in the class. 15 are girls so the probability would be 15/32.
However, it is asking in percentage so we do:
15/32 x 100 = 46.87%
So the answer is 46.87
15/32 x 100% = ...........% chance of choosing a girl
The answer is 96.
Sorry I can't help. Its to complicated.
THANK YOU! You are correct!
P(heads) = 1/2
P(tails) = 1/2
Expected value =
amt won * probability - amt lost * probability = 3(1/2) - 2(1/2) = 3/2 - 1 = 1/2 dollar = 50 cents
Or maybe
30 / 2 = x /60 cross-multiply
60*30 = 2x
1800 = 2x
x = 900mi / hr
x^2 -3x + 1 complete the square on x
Take 1/2 of -3....= -3/2 square this = 9/4 ....add and subtract it
x^2 -3x + 9/4 + 1 -9/4 factor the first three terms, simplify the rest
(x - 3/2)^2 - 5/4
b + c = -3/2 - 5/4 = --6/4 - 5/4 = -11/4
x^2 + 12x + 4 complete the square on x
Take 1/2 of 12 = 6.....square it....=36 .... add and subtract it
x^2 + 12x + 36 + 4 - 36 factor the first three terms, simlify the rest
(x + 6)^2 - 32
(a, h, k) = ( 1, 6 , -32 )
Angela balance after 20 years 8000 (1 + .06)^20= $........
Bob's balance 10 000 (1+.08)^20 = $ ....... you can take it from here ....
(37+ 39+ 41 ) / 27 will be the median....and the average
Nice try, but the answer is wrong.
x*2*230 = x*10-10
460x = 10x-10
450x = -10
x = -1/45
-1/45 = -0.0222222222...
Add them together 7 3/4 + 9 1/2 = ......... hrs
30 miles / 2 minutes = 15 mile/min (this is probably the one you want)
or
2 min / 30 mile = 1/15 min/mile
2 hrs / 10 ft * 120 ft = 24 hrs
24 hours.
Hello other guest! The answer to 5) is no solution.
n(n+2)=k^2
n^2+2n+1=k^2+1
(n+1)^2=k^2+1
(n+1)^2-k^2=1
(n+1+k)*(n+1-k)=1
Now, in order for this to be equal, n and k have to equal 0 but you said they must be positive integers so I believe that there is NO SOLUTION.
x^2 - 3x + 1 = (x - 3)^2 - 8, so b + c = (-3) + (-8) = -11.
x^2 + 10x + 25 = 8
Plug in quadratic equation: https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:quadratic-formula-a1/v/using-the-quadratic-formula
-5 +- 2 sqrt(2)
But we want the smallest, so our answer is -5 - 2sqrt(2)
I hope this helped. :)))
=^._.^=
