Answer:
1 A is correct, 2 D is correct, 3 D is correct, 4 B is correct
Step-by-step explanation:
Answer:
- D) all non-negative integers
Step-by-step explanation:
The function f(x) = 10x + 50 models the total amount he has saved after 'x' months.
The domain is x-values, which is the number of the months.
x can only be zero or positive integers (since you can save after the month is complete), therefore the last option is correct.
Answer:
In mathematics, a differential equation is an equation that relates one or more functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, and the differential equation defines a relationship between the two.
Step-by-step explanation:
Answer: 0.99
Step-by-step explanation:
SOH CAH TOA
CAH: cosine = adjacent/hypotenuse
Cosine of angle w = 84/85 = 0.98823 ≈ 0.99
Angle Y is 90 degrees, meaning it's a right triangle. Therefore angle W is the top/tip of a triangle, while X is the angle next to Y. If you plug in the information afterwards and follow the trigonometry rule (SOH CAH TOA) you will find your answer.
Answer:
2x + 11 = 25
x = 7
Step-by-step explanation:
Let the number be x.
Double of x and add 11 equals 25.
2x + 11 = 25
Solve the equation.
2x + 11 = 25
Subtract 11 on both sides.
2x = 25 - 11
2x = 14
Divide 2 on both sides.
x = 14/2
x = 7
