Answer:
Simplification
x(y+4)+3(2x+7y) = xy + 10x + 21y
= x(y + 10) + 21y
On evaluation when x=5 and y=6,
The expression is equal to 206
Step-by-step explanation:
Note that x and y are unknown variables.
On expansion,
x(y+4)+3(2x+7y)
= xXy + xX4 + 3X2x + 3X7y
= xy + 4x + 6x + 21y
= xy + 10x + 21y
On factorising,
xy + 10x + 21y = x(y + 10) + 21y
Evaluation when x=5 and y = 6
We substitute the given values of x and y into the simplified expression
xy + 10x + 21y
= 5X6 + 10X5 + 21X6
= 30 + 50 + 126
= 206
Therefore, on evaluation of the given expression, when x=5 and y=6, we get 206
Answer:
865
Step-by-step explanation:
if minus than answer
To get the value of n in the problem above, divide the sum by the number of n's added together. From the given, n + n = 24, there are only two n's added together. Hence, divided 24 by 2. The answer to this item is 12.
Answer:
Option D is correct .i.e., All Real Number
Step-by-step explanation:
Given Logarithmic Function, 
First we simply the function,
F(x) = x × log(0.5)
F(x) = -0.30103x (by putting value of log(0.5) )
Its clear range of F(x) completely depends on value of x .i.e, Domain of Function
Domain of log function is real Numbers
⇒ Ranges is also the Real Numbers
Therefore, Option D is correct .i.e., All Real Number
