3 years ago

Find the sum and write it in standard form (6x^3+3x^2+3)+(2x^3−5x+1)

Mathematics

1 answer:

krek1111 [17]3 years ago

3 0

Answer:

$8 {x}^{3} + 3 {x}^{2} - 5x + 4$

Step-by-step explanation:

$(6 {x}^{3} + 3 {x}^{2} + 3) + (2 {x}^{3} - 5x + 1) \\ = 6 {x}^{3} + 2 {x}^{3} + 3 {x}^{2} - 5x + 3 + 1 \\ = 8 {x}^{3} + 3 {x}^{2} - 5x + 4$

You might be interested in

A rug is 4 m wide. How much is this in centimeters?

Crank

It's very simple
1m=100cm
4m=4×100=400cm

6 0

3 years ago

Read 2 more answers

Which relationships describe the angle pair x° and 71º?

aliina [53]

If x and 71 degrees are side by side, it can be a complementary if it is exactly 90 degrees, supplementary if it is 180 degrees....

8 0

3 years ago

What is 4875 in expanded form

Rufina [12.5K]

4,875 in expanded form is 4,000 + 800 +70 + 5 = 4,875

3 0

3 years ago

Always, sometimes, or never true.

labwork [276]

Step-by-step explanation:

sometimes ....................

7 0

3 years ago

Suppose a triangle has 2 sides of length 3 and 4 and that the angle between these two sides is 60 degrees. what is the length of

shusha [124]

Answer:

$\boxed{b.\:\:\:\sqrt{13}}$

Step-by-step explanation:

Let the third side of the triangle be $h\: units$ .

We can apply the cosine rule to find $h$ .

$h^2=3^2+4^2-2(3)(4)\cos(60\degree)$

We evaluate to obtain;

$\Rightarrow h^2=9+16-24(\frac{1}{2})$

$\Rightarrow h^2=25-12$

$\Rightarrow h^2=13$

We take the positive square root of both sides to obtain;

$\Rightarrow h=\sqrt{13}$

The correct answer is B.

8 0

3 years ago