Answer:
a is wrong b is wrong c is right
Step-by-step explanation:
hope this helps
Answer:
-6 7/hr= -6F per hour
Step-by-step explanation:
a rate of change can be defined as:
R=(total change in some quantity) (time in which the change happened)
In this case we know that the temperature dropped -30F in a given time, then we already know that:
Total change in some quanity =-30F now we know that this change took place between the 1:00pm and the 7:00 pm the total amount of ime between these two hours is:
T= (7.00 - 1.00 hr)= 6.00 hr
this means that the change happened =6 hours.
then we can replace these values in the above equation to get:
R=(-30F)/(6hr)=-6F/hr
this means that for each hours that passes the temperature decreases 6F
we also can write that this rate as:
R=-6F/HR =-6F per hour.
Answer:
34.29 Inch.
Step-by-step explanation:
The Aspect Ratio of a screen is the ratio of the Width to the Height of the screen.
We are told that the TV screen has an aspect ratio of 21:9
Therefore:
The height of the TV will be approximately 34.29 Inch.
Answer:
The true statement is that the answer is 75
Step-by-step explanation:
Answer:
C: x = -2, 0, and 6
Step-by-step explanation:
First set the equation equal to zero
0 = x³ - 4x² - 12x
now factor out the GCF, which is 'x'
0 = x(x² - 4x - 12)
Now factor completely...
0 = x(x - 6)(x + 2)
So
x = 0
and
x - 6 = 0 becomes x = 6 (add 6 to both sides)
and
x + 2 = 0 becomes x = -2 (subtract 2 from both sides)
So our solutions are
x = -2, 0, and 6