Answer:
For a quadratic function in standard form, y=ax2+bx+c
the axis of symmetry is a vertical line x=−b2a .
Step-by-step explanation:
Hope this helps !
We can set Charmaine's age as x. If William is 3 years older, than his age would be 3 + x.
Charmaine = x
William = 3 + x
Their ages added up together is 76, and we need to multiply Charmaine's age by 3 and William's age by 2.
3x + 2(3+x) = 76
3x + 6 + 2x = 76
5x = 70
x= 14
Charmaine is 14 years old
William's age is Charmaine's age plus 3.
William is 17 years old.
Answer:
Option C) c+9 is correct
The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase
Step-by-step explanation:
Given that c=the number of cars in a parking lot.
The phrase given is "the sum of the number of cars and 9"
To find the algebraic expression which represents the given phrase :
The algebraic expression to the given phrase is c+9
That is option C) c+9 is correct
The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase
Answer:
1.The actual height is the doctors height, 4 feet 2 inches
2. The error was 2 inches less.
3. 8% error
Answer:
4n²+2n as a factorial is given as:
Step-by-step explanation:
We are given an expression which has to be converted into factorial form.
The expression is as follows:
Now we know that 2n+1 and 2n differs by '1' and the next smaller term is '2n-1'.
Hence, multiplying and dividing by '(2n-1)!'; we get:
we know that x(x-1)(x-2)! = x!, so: