
Multiplying a positive and a negative equals a negative: (+)×(-)=(-)

Calculate the product

Answer:
To evaluate a function, substitute the input (the given number or expression) for the function's variable (place holder, x). Replace the x with the number or expression. Given the function f (x) = 3x - 5, find f (4). Solution: Substitute 4 into the function in place of x.
Step-by-step explanation:
Answer:
B. X4+ 4x2 +8x is the answer
Step-by-step explanation:
Answer:
The solution of equation
is 0.53,-7.53.
Step-by-step explanation:
Given : Quadratic equation 
To find : The solution of equation ?
Solution :
The solution of the quadratic equation
is
Here, a=1, b=7 and c=-4.
Substitute the values,
Therefore, the solution of equation
is 0.53,-7.53.
The ratio of the triangle is 55/1.1, which is 50/1.
This means that the building is 50/1 = x/5
x = 250
The office building is 250 m tall.