The GCF of 20 and 70 is 10
90=10(7+2) could be used as another related expression
Y=2x+1 would be the linear function
(Y/5.6=12)*5.6
Y=12*5.6
Y=67.2 is the correct answer
Step-by-step explanation:
step 1. let's call the line in the middle y.
step 2. y = sqrt(5^2 + 7^2) = sqrt(74). pythagorean theorem.
step 3. x^2 + y^2 =100 (pythagorean theorem))
step 4. x^2 + (sqrt(74))^2 = 100.
step 5. x^2 = 100 - 74
step 6. x^2 = 26
step 7. x = sqrt(26). note: sqrt is the square root.
