All categories

2 years ago

Simplify 3a(a^2-3a+4)-4(3a^3-2a^2)

Mathematics

1 answer:

bogdanovich [222]2 years ago

4 0

Answer:

Step-by-step explanation:

3a(a²-3a+4)-4(3a³-2a²) = 3a³ − 9a² + 12a − 12a³ + 8a²

= (3a³ − 12a³) + (− 9a² + 8a²) + 12a

= −9a³ − a² + 12a

You might be interested in

(PLEASE HELP)

Alisiya [41]

Answer: d
The two smallest sides have to add up to the largest one

5 0

2 years ago

What is the volume of a hemisphere that

ch4aika [34]

<u>Given</u>:

Given that the diameter of the hemisphere is 12.6 cm

The radius of the hemisphere is given by

$r=\frac{d}{2}=\frac{12.6}{2}=6.3$

We need to determine the volume of the hemisphere.

<u>Volume of the hemisphere:</u>

Let us determine the volume of the hemisphere.

The volume of the hemisphere can be determined using the formula,

$V=\frac{2}{3} \pi r^3$

Substituting the values, r = 6.3 and π = 3.14, we have;

$V=\frac{2}{3} (3.14)(6.3)^3$

Simplifying the values, we have;

$V=\frac{2}{3} (3.14)(250.047)$

$V=\frac{1570.29516}{3}$

Dividing, we have;

$V=523.43172$

Rounding off to the nearest tenth, we get;

$V=523.4$

Thus, the volume of the hemisphere is 523.5 cm³

6 0

2 years ago

Betty had $70. She bought a necklace for $9 and a ring for $7. Which expression correctly shows the total money Betty has left?

Elodia [21]

70 - 9 - 7 = x 70 being the original amount

4 0

2 years ago

Read 2 more answers

What is y=2x plus 4?

svetoff [14.1K]

y=2x+4

that is an equation in slope intercept form where the slope is 2 so you would go up two right 1 and the y intercept would be 4 so (0,4)

3 0

2 years ago

What is the product in lowest terms? 8/15 * -3/10

german

Multiply the numerators and denominators together:

-24/150

Divide the numerator and denominator by 6:

-24 / 6 = -4
150 / 6 = 25

-4/25

4 0

2 years ago