Question

X = 4y squared - 12

Work out the value of x when y=5

Answer 1

To find the value of x when y=5 for the equation x = 4y^2 - 12, substitute y with 5 and perform the calculations to find that x equals 88.

Step-by-step explanation:

We need to work out the value of x when y=5 given the equation x = 4y2 - 12. To do this, we will substitute y with 5 and solve the equation step-by-step:

1. Replace y with 5 in the equation: x = 4(5)2 - 12.
2. Calculate the square of 5: 52 = 25.
3. Multiply 4 by the result from step 2: 4 × 25 = 100.
4. Subtract 12 from the result of step 3 to find x: 100 - 12 = 88.

Therefore, the value of x when y=5 is 88.

Answer 2

0.0000000164

Step-by-step explanation:

x= 4y^-12

for,

y = 5

x = 4×5^-12

x = 4/5^12

x = 4/244,140,625

x = 0.0000000164