Find values of x and y that satisfy x y equals 0.42 and x plus y equals 1.3. explain your process.

The values of x and y that satisfy x y equals 0.42 and x plus y equals 1.3 is x = 0.6 and y = 0.7 or x = 0.7 and y = 0.6

Solution:

To find values of x and y , determine the factors of 0.42 and find which will have a sum of 1.3

Case 1:

xy = 0.42 = (0.1)(4.2)

sum = x + y = 0.1 + 4.2 = 4.3

Here we did not get a sum of 1.3

Case 2:

xy = 0.42 = (0.2)(2.1)

sum = x + y = 0.2 + 2.1 = 2.3

Here we did not get a sum of 1.3

Case 3:

xy = 0.42 = (0.3)(1.4)

sum = x + y = 0.3 + 1.4 = 1.7

Here we did not get a sum of 1.3

Case 4:

xy = 0.42 = (0.6)(0.7)

sum = x + y = 0.6 + 0.7 = 1.3

Here we got sum as 1.3

So the values of x and y are:

x = 0.6 and y = 0.7 or x = 0.7 and y = 0.6

y > 1/3x

y < = -x + 4

hope this : )

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet