Answer:
A
Step-by-step explanation:
3/4*(-4/3) + 1/2 = -1 + 1/2 = -1/2
Answer: 8.3 feet
We know the area of 1 tile is:
(1)
We also know Jack used 103.75 tiles to cover the whole bathroom floor, which is a rectangle.
Remembering (1), we have that:
(2)
Which is also the area of the rectangle from which we only have the value of one of its sides, the width
:
(3)
In addition, the area
of a rectangle is given by the following equation:
(4)
Where
is the length.
Substituting the value of the width written in (3) and the area (2) in equation (4):
(5)
We finally have the value of the length of the bathroom floor:
Hello!
ANSWER:
The boxes weigh 112.5 lb altogether.
EXPLANATION:
Each box weighs 7.5 lb. We want to find out how much 15 boxes would weigh.
Multiply the weight of each box (7.5 lb) by the amount of boxes (15):
7.5 × 15 = 112.5
Step-by-step explanation:or 3, 19, 9, 7, 27, 4, 8, 15, 3, 11. ... There are 10 total numbers, so the 5th and 6th numbers are used to ... The 2 middle numbers only need to be averaged when the data set ... For instance, if your set has 21, 9, 14, 3, 11, 33, 5, 9, 16, 21, 5, 9, what is the mode?
Answer:
a) 
b) t = 0.3 seconds
c) d = 4.9t²
d) d = 11 cm.
Step-by-step explanation:
One test involves catching a 1 m ruler and measuring the distance, d in meters, that the ruler will travel before being caught, the reaction time t in seconds is then calculated using the formula
.......... (1)
a) the simplified expression is
......... (2)
b) If d = 44 cm = 0.44 meters, from equation (2) we get,
t = 0.299 seconds ≈ 0.3 seconds (Approximate)
c) If we make d as the subject of the equation, then

⇒ d = 4.9t² .......... (3)
d) Now, if
seconds, then from equation (3) we get,
d = 4.9 (0.15)² = 0.11 meters = 11 cm (Answer)