All Answers 356066 Answers

22??

2+2=4+1=5

5+5=10-8=2

9+9=18-3=15

15+15=30-8=22

i am obviously not a genius lol, i hardly knew what i was doing there....

i tried to be smart and figure out a pattern

someone help!

Hey noooooo

2 + 2 = infinity :(

The answer is 19 if you are a clever person

21 if you are a not-as-clever person

First find the distance the aircraft goes in 1 min.

I assume that the altitude is always 10000m

Distance it goes in 1 minute

\(=\dfrac{10000}{\tan 33}-\dfrac{10000}{\tan 70}\\ \approx11759 m\\ =11.759 km\)

The distance it goes in an hour = 705.536 kilometers.

Therefore the speed of the aircraft = 706 km/h.

:D

~The smartest cookie in the world

\(f(x) = k -mx\\ y = k - mx\\ x' = k - my'\\ my'=k-x'\\ y'=\dfrac{k-x'}{m}\\ f^{-1}(x) = \dfrac{k-x}{m}\)

Is this correct? Someone please check it for me?

\((r+2)^2\equiv (r+1)^2 \pmod{55}\\ r+2\equiv r+1\pmod{55}\)

what?????

The difference is a big difference where 35000 years ago dinosaurs already have been extinct but 225 million years ago you still see some dinosaurs.

2000 + 904567 

Easy.

2000 + 904567

= 2000 + 900000 + 4000 + 500 + 60 + 7

= 900000 + 6000 + 500 + 60 + 7

= 906567

lol

actually one step is ok

~The smartest cookie in the world

4 < 7 < 9

\(\sqrt 4 < \sqrt 7 < \sqrt 9\)

\(2<\sqrt 7 < 3\)

square root of 7 lies between 2 and 3

PS: you have a typing mistake for "square root"

~The smartest cookie in the world

\(4e^x = 8\\ e^x = 2\\ \ln(e^x)=\ln 2\\ x = \ln 2\)

Your mama so fat, she stucks at the door when she wants to go out.

This is not a true statement.

a,b,c,x,y,z do not have a fixed value.

Correct one is : Nǐ hǎo

There is a little thing on i and a.

PS: I am from Hong Kong, so Chinese people

~The smartest cookie in the world

Just google it.

Google is awesome.

~The smartest cookie in the world

18 views already :D

2 more to 20 views :)

DO NOT be racist. This is an international forum.

PS: I am an Asian myself and I found it offensive. Some Asians are not good at math.

~The smartest cookie in the world

I wonder if you can wear skirt AND pants at the same time...... lol

Total number of combination = (3+2) x 4 x 2 = 40 (3+2 is for skirt OR pants)

Kristen has three skirts,

two pairs of pants,

four sweaters,

and two pairs of shoes.

how many different skirt/pant, sweater, and shoe combination can she choose from for school tomorrow? 

3*2*4*2 = 48

\(30^{0.75}\\ =30^{\frac{3}{4}}\\ =\sqrt[4]{30^3}\\ =\sqrt[4]{27000}\)

\(8^{-1}=\dfrac{1}{8}=0.125\)

:)

Step 1: \(d_2\cdot v_s\cdot\cos 45^{\circ}=d_1\cdot(v_r-v_s\sin45^{\circ})\)

They multiplied out the bracket on the right hand side:

\(d_2\cdot v_s\cdot\cos 45^{\circ}=d_1\cdot v_r-d_1 \cdot v_s\sin45^{\circ}\)

and then they add d1 . vs sin45 each side:

\(d_2\cdot v_s\cdot\cos 45^{\circ}+d_1 \cdot v_s\sin45^{\circ}=d_1\cdot v_r\)

Factor out the common factor(vs):

\(v_s\cdot(d_2\cdot\cos 45^{\circ}+d_1\sin 45^{\circ})=d_1\cdot v_r\) <-- Step 2!!

Of course! XD