Answer:

Step-by-step explanation:

Given that:

To evaluate the expression, we must simply substitute the given value of
, which is
, for
:

Multiply:

Subtract:

-
To check your work, simply set the given expression equal to our solution,
:

Add
to both sides of the equation:

Divide both sides of the equation by the coefficient of
, which is
:

Since it matches the given value of
, our solution is correct!
All of the answers you put are correct. good job!
Answer:
Step-by-step explanation:
39). y =
x + 3
40). m =
y -
= m( x -
)
(- 7, 5)
( - 12, 4)
m = ( 4 - 5 ) / ( - 12 + 7) = 1/5
y - 5 = (1/5)(x + 7) ⇒ y =
x + 6.4
-133/2=-66.5
If we take the upper and lower round of that number we will get the 2 consecutive numbers that make -133.
Therefore the answer is -66 & -67.
Answer:
72.73% probability of selecting a girl, given the flip resulted inheads
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Coin resulted in heads
Student is selected at random from a class of six boys and sixteen girls.
Desired outcomes:
16 girls, so 
Total outcomes:
16+6 = 22, that is, 22 students, so 
Probability:

72.73% probability of selecting a girl, given the flip resulted inheads