Hi, It is well simples:
The distance between two points is :
d( A, B) = √[ (xb - xa)^2+(yb - ya)^2+(zb - za)^2]
Then,
A = (xa, ya, za )
B = (xb , yb , zb)
We know:
A = ( 2 ,0 ,-2)
And,
B = (5 , -4 , 6)
___________
xb - xa = 5-2 <=> 3
yb - ya = -4 - 0 <=> -4
zb - za = 6 - (-2) <=> 8
Then us stay:
d( A, B) = √[ (3)^2 + (-4)^2+(8)^2]
= √( 9 + 16 + 64)
= √( 25 + 64)
= √(89)
Answer:
<em>7x-y=61</em>
Step-by-step explanation:
The standard form is <em>Ax+By=C</em>.
Let's simplify the equation first.
1. Distribute: <em>y+5=7x-56</em>
2. Subtract 5: <em>y=7x-61</em>
3. Arrange into standard form: <em>7x-y=61</em>
The probability of showing a 3 on the first roll is 1/6.
The probability of showing a 3 on the second roll is 1/6.
Because the two rolls are independent events, the probability of showing a 3 on both rolls is
(1/6)*(1/6) = 1/36
Answer: 1/36
Answer:
18
Step-by-step explanation:
60 times
You have a 1/3 chance each spin.
1/3 = x/180
180 = 3x
x = 60