Answer:
the real solutions are the ones that actually cross the x-axis.
so the real solutions are (-5, 0) (-1,0) (4,0) and (8,0)
Answer:
30
Step-by-step explanation:
Q: (9/(3/10))
To solve, change the division sign to multiplication, and flip the denominator fraction.
(9/(3/10)) = 9 * (10/3)
Simplify. Multiply, then divide.
(9 * 10)/3 = (90)/3 = 30
30 is your answer.
~
Answer:
D. 80
Step-by-step explanation:
We have the following function :
(I)
Where 
is the monthly fee for after - school care and preschool.
Where 
represents the number of hours spent in after - school care.
We know that the total monthly bill for one child was $750 ⇒
Using (I) we will find the value of the hours '''' that verifies the expression ⇒
⇒
We find that the value of the hours '''' is 80 hours.
The total number of hours the child spent in after - school care is D. 80
"The digit at tens place is four times the digit at units place."
How many possible numbers are there?
1 in the units place: 41
2 in the units place: 82
If you try 3 in the units place, 4 * 3 = 12, you'd get 123, and now it's a three-digit number, so the only possibilities are 41 and 82.
41 or 82
If you subtract 54 from 41, you get a negative number, so 41 cannot be the number.
82 - 54 = 28, which has the digits of 82 in reverse order.
Answer: 82
