All categories

3 years ago

Polynomials Multiply ( 4x2 – 3)(x + 8)

Mathematics

1 answer:

Bad White [126]3 years ago

6 0

Answer:

(4*2-3)(x+8)

(8-3)(x+8)

8(x+8)-3(x+8)

8x+64-3x-24

8x-3x+64-24

5x+40

You might be interested in

zepelin [54]

Answer:

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

Step-by-step explanation:

We need to find equation from the table given

x f(x)

3 -5

7 -2

11 1

15 4

We can write equation in the form of $y=mx+b$

where m is slope and b is y-intercept.

Finding Slope

We can used the slope formula to find slope: $Slope=\frac{y_2-y_1}{x_2-x_1}$

From the table we have: $x_1=3, y_1=-5, x_2=7, y_2=-2$

Putting values and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-2-(-5)}{7-3} \\Slope=\frac{-2+5}{7-3}\\Slope=\frac{3}{4}$

So, we get slope $m=\frac{3}{4}$

Now, finding y-intercept

Using the slope $m=\frac{3}{4}$ and point (3,-5) we can find y-intercept

$y=mx+b\\-5=\frac{3}{4}(3)+b\\-5=\frac{9}{4}+b\\b=-5-\frac{9}{4}\\b=\frac{-5*4-9}{4}\\b=\frac{-20-9}{4}\\b=\frac{-29}{4}$

The y-intercept is $b=\frac{-29}{4}$

So, the equation having slope $m=\frac{3}{4}$ and y-intercept $b=\frac{-29}{4}$ will be:

$y=mx+b\\y=\frac{3}{4}x-\frac{29}{4}$

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

6 0

3 years ago

-12°F+ -23°F please don't let me down

coldgirl [10]

Plus a negative value becomes subtraction:

-12 + -23 = -12 -23 = -35

3 0

3 years ago

The following tape diagram describes the relationship between the amount of red paint and the amount of blue paint in a "Plummy

Triss [41]

Answer:

Step-by-step explanation:

6 0

3 years ago

What is 10 plus 10 minus 4 and 8 divided by the total?

katrin2010 [14]

Answer:

Step-by-step explanation:

(10+10-4)÷8 is your expression.

10+10=20

20-4=16

16/8=2

6 0

3 years ago

Read 2 more answers

Urgent please help!!

wolverine [178]

Answer:

i think it would be B because if AC= 80 and thats like the distane between then abc would be 80 if im thinking right

Step-by-step explanation:

but hey if im wrong ill have my friend punch me in the arm to make it even

4 0

3 years ago