Answer:

Step-by-step explanation:
The quadratic formula of a quadratic equation

We have the equation:

Substitute:

Answer:
Number of sent mail = 36
Number of received mail = 75
Step-by-step explanation:
Let,
x be the number of mails sent
y be the number of mails received
According to given statement;
x + y = 111 Eqn 1
y = 2x + 3 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
x + 2x + 3 = 111
3x = 111 - 3
3x = 108
Dividing both sides by 3

Putting x = 36 in Eqn 2
y = 2(36) + 3
y = 72 + 3 = 75
Hence,
Number of sent mail = 36
Number of received mail = 75
Answer: (-1,2) and (2,2) Make sure to see explanation!
Step-by-step explanation:
Well you need to remember the Y reflection rule!
To reflect over the Y axis you must do this:
Take the points in this case
(1,2) and (-2,2)
And you need to use the equation (x,y) --> (-x,y)
So the new points you NEED TO GRAPH ARE
(-1,2) and (2,2)
Hope this helped!
The answer is: [C]: " 2⁴ " .
___________________________________________________
Explanation:
____________________________________________________
The ratio of outputs is: 4:(1/4) = 4:(1/4) = 4 ÷ (1/4) = 4/1 * 4/1 = 16/1 = 16:1 = 16.
From the answer choices given, "2⁴ = 16" ; since: " 2*2*2*2 = 16 ";
which corresponds to:
__________________________________________________________
"Answer choice: [C]: " 2⁴ " .
__________________________________________________________