In some country the budget for defense exceeded the budget for education by $622.7 billion. If x represents the budget for education, in billions of dollars, how can the budget for defense be represented? If x represents the budget for education, in billions of dollars, the budget for defense can be represented by:.

Step-by-step explanation:

To start with;

Represent the budget of education by x

Represent the budget of defense by y

From the question, we understand that:

y exceeds x by $622.7 billion

Mathematically. this can be represented as:

Hence, the defense budget is x + $622.7 billion

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places