Answer:
QR = 17 cm
Step-by-step explanation:
Δ RST is a 5- 12- 13 triangle with hypotenuse RT = 13 cm , then
TS = 5 cm and PT = 2 × 5 = 10 cm
So PS = 10 + 5 = 15 cm
PS is parallel to the vertical line from vertex Q and intersects the horizontal line projected from SR of length 20 - 12 = 8 cm
Using the right triangle formed calculate QR using Pythagoras' identity
QR² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )
QR = 
= 17
Answer:
0.28277
I got this by plugging in 0.2512 for "A" ( A = π r² ) Then I solved the rest ( divide both sides by pie, then taking the square root from that.
Step-by-step explanation:
Cos Milky Said it.
Answer:
P (T) = 1/4
P ( T | F ) = 1/2 = P(F)
The events are not independent.
Step-by-step explanation:
Let F the event of picking the white ball first
P (F)= 1/2 ( picking the white ball first)
Let T be the event of getting the white ball twice,
P (T) = P( getting white ball) * P( getting white ball)
=( 1/2)*(1/2)
= 1/4
Here P(T∩F) = P(T) because the probability of getting the white balls is the same as probability of getting the white ball first both the times.
P ( T | F ) = P (T∩F)/ P(F)
= (1/4)/ (1/2)
= (1/2)
= 1/2 = P(F)
For the events to be independent the conditional probability P ( T | F ) must be equal to P(T).
Hence the events are not independent.
Answer:
The answer is on the site
Step-by-step explanation:
https://www.bartleby.com/questions-and-answers/find-the-equation-of-a-line-passing-through-point-32-and-perpendicular-to-the-line-2x-3y-40./009bf91e-86e4-4b09-9d15-2d08cb5293fd
Hey there! :D
First, find the slope:
m= (y2-y1)/(x2-x1) (-4,2) and (-6,0)
m= (0-2)/(-6-(-4)
m= -2/(-6+4)
m=-2/-2
m=1
Now, plug that into point slope.
y-y1= m(x-x1)
y-2= 1(x-(-4)
y-2=1(x+4)
y-2=x+4
Add two to both sides.
y=x+6
The y-intercept= 6
I hope this helps!
~kaikers
