Find the gradients and the co-ordinate of the y intercept of the following line: 1). X=4y-7
m=
c=

2) 8y-4x=5
m=
c=

3) 2y+9=8x
M=
C=

any working out will be helpful please :)

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

step-by-step explanation:

19

step-by-step explanation: