8-5(12x+8) simplify the following expression

1 answer:

8 0

Due to "order of operations" rules, you MUST do the multiplication -5(12x+8) first, eliminating the parentheses long the way:

8 - 60x - 40

Now combine the 8 and -40 and rewrite the entire answer in 2 (not 3) terms.

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Write in y=mb+b form

kotykmax [81]

Answer:

y=5x+4

Step-by-step explanation:

5 is the rate of change and 4 is where the line intersects y

6 0

3 years ago

There is an infinite number of ways to represent 1 on the number line. In the space below, write at least four expressions multi

tatuchka [14]

Answer:

1) ok, we know that if we divide one number by the same number, the solution is 1 ; this is: a/a = 1

so we could write something as:

3 = 3*1 = 3*(5/5) = (3*5)/5 = 15/5

so 3 = 15/5

this is especially useful when working with addition of fractions.

2) this is really useful if you have a square root in the denominator.

for example : $\frac{1}{\sqrt{2} } = \frac{1}{\sqrt{2} } *\frac{\sqrt{2} }{\sqrt{2} } = \frac{\sqrt{2} }{2}$

3) you also could do this in the next way:

3 = 3*1 = 3*(7/7) = 3*(3+4)/7= 9/7 + 12/7

where i splitted the 7 into 3 +4, this relation could be useful sometime.

4) if you do the difference between some number and the prior number; you get one; this is : (5 -4) =1

then: 3= 3*1 = 3*(5 - 4) = 15 - 12

4 0

4 years ago

The axis of symmetry for the graph of the function f(x)=3x^2+bx+4 is x= 3/2. what is the value of b

Papessa [141]

Answer:

b = -9

Step-by-step explanation:

The function is given as :

$f(x)=3x^2+bx+4$

The axis of symmetry for this function is x = 3/2

It is required to find the value of b. The axis of symmetry of a parabola is a vertical line that intercepts its vertex at its horizontal coordinate. It can be given by :

$x=\dfrac{-b}{2a}$