Which of the sets of ordered pairs represents a function? A = {(1, −2), (3, −5), (5, 2), (7, 5)} B = {(5 3), (5, −3), (7, 5), (7
2 answers:
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Let's assume
point K as (x,y)
M is the midpoint of JK
so, other point as J(0, 11)
M(-3,2)
now, we can compare both sides
Calculation of x-coordinate:
we get
Calculation of y-coordinate:
we get
so, we will get point K
K=(-6,-7)............Answer
Answer: 14 cans
Step-by-step explanation:
Given, Total area to paint = 400 square meters
approximately 3.28 feet in a meter.
So, 400 square meters = 400 x (3.28)² square feet
i.e. Total area to paint = 4303.36 square feet
One gallon of paint requires for every 300 square feet.
One liter contains approximately 0.264 gallons
Then, One gallon =
So, 3.78 liters paint requires for every 300 square feet.
Paint requires for each square feet = (3.78)÷(300) liters
Total paint required = (Total area to paint ) x (Paint requires for each square feet)
= (4303.36)x (3.78)÷(300)
≈54.22 liters
Each can contains 4 liters of paint.
Smallest number of cans required = (Total paint required )÷ 4
=(54.22 ) ÷ 4
= 13.55≈ 14
Hence, 14 cans are required .