Answer:
f(- 2) = 9
Step-by-step explanation:
To evaluate f( - 2) substitute x = - 2 into f(x), that is
f(- 2) = (- 3 × - 2) + 3 = 6 + 3 = 9
Answer:
j = -8
Step-by-step explanation:
-13j - 20 = -8j + 20
Add 13 j to each side
-13j+13j - 20 = -8j+13j + 20
-20 = 5j+20
subtract 20 from each side
-20-20 = 5j +20-20
-40 = 5j
Divide by 5
-40/5 = =5j/5
-8 =j
Answer:
X = 3
Step-by-step explanation:
First count the amount of X's. There are 5 and it is plus two. Both sides should be equal in value so you have to set up your equation.
5x + 2 = 17
Then Solve For X
5x + 2 = 17
Subtract 2 from both sides
5x = 15
Divide by 5
X = 3
Check your answer
5(3) +2 = 17
15 + 2 = 17
17 = 17
It is correct!
Answer:
12.486 Rounded to the Nearest Whole Number
To round 12.486 to the nearest whole number consider the tenths' value of 12.486, which is 4 and less than 5. Therefore, we have to round down: the whole number ones place value of 12.486, 12, remains 12, and the decimal point and all digits (. 486) are removed.
Step-by-step explanation:
