Answer:
A. 720 per hour
Step-by-step explanation:
1200+ <em>720</em> + 720 + <u>360</u> =3000
<em>hr 1↑</em>+ hr 2↑ + <u>↑30 min</u>
Answer:
what is this
Step-by-step explanation:
The given expression for the area, 81x² - 4y², is a difference of two squares. The first term is the square of 9x and the second term is the square of 2y. The factors of this difference and the therefore the dimensions of the rectangle are, 9x - 2y and 9x + 2y.
Answer:
x = 1
Step-by-step explanation:
Note that the two lines are of equal length
4x-1 = x + 2
3x = 3
x = 1
Answer:
-15.
Step-by-step explanation:
The temperature dropped 3°c every hour.
So, the change in temperature every hour = -3°C.
Total number of hours for which the temperature were changed =5.
Thus, the total change in temperature = change for an hour x total number of hours,
= -3° x 5
= -15°.