Using this equation, f(3) = 23.
In order to find the value of f(3), we need to take the f(x) equation and put 3 everywhere we see x. Then we follow the order of operations to solve. So, let's start with the original.
f(x) = 2x^2 + 5sqrt(x - 2)
Now place 3 in for each x.
f(3) = 2(3)^2 + 5sqrt(3 - 2)
Now square the 3.
f(3) = 2(9) + 5 sqrt(3 - 2)
Do the subtraction inside of the parenthesis.
f(3) = 2(9) + 5sqrt(1)
Take the square root
f(3) = 2(9) + 5(1)
Multiply.
f(3) = 18 + 5
And add.
f(3) = 23
Assuming you meant 2+3(67x34)=y
67x34=2278
2+3(2278)=y
5(2278) or 5x2278=y
y=11390
a) 2/6 * 1/5 = 2/30 = 1/15
b) 1/15 + 2/6 * 1/5 = 2/15
Answer:
B: -14
Step-by-step explanation:
given that f(x) = -2x - 13,
we can find the value of f(-3) by simply plugging in -3 for x
f(-3) = -2(-3) - 13
f(-3) = -7
Because we are dealing with the expression f(-3) - 7, we still have one more step. Let's plug in -7 for f(-3)
- 7 - 7 = -14
Therefore, f(-3) - 7 will give us B: -14
the reciprocal/ answer is 4/37
