Answer:
(-6,-1)
Step-by-step explanation:
let b be x2,y2
then apply mid point formula
x=(x1+x2)/2
y=(y1+y2)/2
Answer
Explanation
We've been told to pick the function that best models the data in the table.
Given that x = time (hours)
y = Cost (dollars)
The best approach is to examine each of the options to pick which one matches the data in the table
Option A
y = 65.75x + 50
when x = 1
y = 65.75 (1) + 50
= 65.75 + 50
= 115.75
when x = 4
y = 65.75 (4) + 50
= 263 + 50
= 313
when x = 8
y = 65.75 (8) + 50
= 526 + 50
= 576
when x = 12
y = 65.75 (12) + 50
= 789 + 50
= 839
Option A matches the data perfectly.
Option B
y = 50x + 115.75
when x = 1
y = 50 (1) + 115.75
y = 50 + 115.75
y = 165.75
Since this first attempt for the second function doesn't match the data in the table, we can easily write this option off as a wrong answer.
Option C
y = 65.75x + 1
when x = 1
y = 65.75 (1) + 1
= 65.75 + 1
= 66.75
Since this first attempt for the third function doesn't match the data in the table, we can easily write this option too off as a wrong answer.
O
Answer:
Precio original= $5.750
Step-by-step explanation:
Dada la siguietne información:
Precio de venta= $3.450
Descuento= 40%
<u>Para calcular el precio original (previo descuento), debemos usar la siguiente formula:</u>
Precio original= precio de venta / (1 - porcentaje de descuento)
Precio original= 3.450 / (1 - 0,4)
Precio original= $5.750
Answer:
1) rate = 175 miles/4 hours, unit rate = 43 3/4 miles/hour
5) y = 2x + 2
Also I think you made a mistake for #2, read explanation please.
Step-by-step explanation:
1) 175 / 4 = 43 3/4 miles/hour.
5) y = 2x + 2, We know that 2 is added since 0 x 2 =/= 2.
2) (Referring to 12^0) When you raise a number to the power of 0 the result is always 1, but if it's negative then the result would be -1 instead.
Expanded form and standard form are both 1, since the base 12 is positive.