Answer:
x = 5
Step-by-step explanation:
According to the Pythagorean theorem a²+b²=c²
In this case its:
x² + 12² = 13²
169 - 144 = x²
x² = 25
x = 5
Plug in 2 and 4 for every instance of x in the function g(x).
g(x) = 0.023x³ + 0.4x² − 2.1x + 8.3
g(2) = 0.023(2)³ + 0.4(2)² − 2.1(2) + 8.3 = 5.884
g(4) = 0.023(4)³ + 0.4(4)² − 2.1(4) + 8.3 = 7.772
answer: 5.884 and 7.772
Answer:
Use y + x = 3 and solve for either x or y.
Step-by-step explanation:
Substitution is a method to solve a system of equations by substituting an expression from one equation into the other.
To begin, first solve one equation by isolating for one variable. Choose the equation which will have the least number of steps to do so.
y + x = 3 can be solve for x or y by subtracting the other variable. Since this only requires one step use this equation. Either variable can be used.
Answer:
169 mg
Step-by-step explanation:
The ratio of medicine quantity to body weight is the same for both patients, so ...
amount/(156 lb) = (143 mg)/(132 lb)
Multiply by 156 lb:
amount = (143 mg)(156/132) = 169 mg
The patient requires 169 mg of medicine.
