Answer:
79 does not have a defined square root.
Let us assume the two numbers to be "x" and "y".
Then
xy = - 24
x = - (24/y)
And
x + y = 2
Putting the value of x from the first equation in the second equation, we get
x + y = 2
- (24/y) + y = 2
- 24 + y^2 = 2y
y^2 - 2y - 24 = 0
y^2 - 6y + 4y - 24 = 0
y(y - 6) + 4(y - 6) = 0
(y - 6) (y + 4) = 0
When
y - 6 = 0
y = 6
Then
x + y = 2
x + 6 = 2
x = 2 - 6
= -4
And when
y + 4 = 0
y = -4
Then
x + y = 2
x - 4 = 2
x = 2 + 4
= 6
So the two unknown numbers are -4 and 6.
Answer:
depends 0.7 out of 1 or 0.7 out of 100
Answer:
The GCF for the variable part is
x
2
y
2
.
GCF
Variable
=
x
2
y
2
Answer:
a. 0.04
b. 0.0136
c. 0.2364
Step-by-step explanation:
a. P(fails both the first and second test)
=P(fails the first test) × P(fails second test)
= (1-P(pass on the first try)) × (1-P(fails on the first try will pass on the second try))
=(1-0.75) × (1-0.84) =0.04
b. P(Fail three times in a row)
= P(fails both the first and second test) × P(fails third test)
=0.04 × (1-P(fails the first and second test will pass the third time))
=0.04 × (1-0.66) = 0.0136
c. P(Require at least two tries)
=P(fails on the first try will pass on the second try) + P(fails the first and second test will pass the third time)
= ( P(fails the first test) × P(passes second test) )+( P(fails both the first and second test) × P(passes third test) )
= (0.25 × 0.84) + (0.04 × 0.66)
= 0.2364