3 years ago

What is the value of 2x^3+4x^2-6x, where x= 3? A. 63 B.45 C. 35 D. 99

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

5 0

2(3)^3 + 4(3)^2-6(3)
2x 27 + 4x9 - 18
54 + 36 -18
= 72

You might be interested in

Given f(x) = -x – 5, solve for a when f(x) = 4.

Gnoma [55]

Answer:

Step-by-step explanation:

plug 4 into x making -4-5 then solve it and it comes out as 1

6 0

3 years ago

Find the measure of angle ABC. A. 124 B. 97 C. 56 D. 51

Airida [17]

Answer: Last Option

Step-by-step explanation:

By definition the sum of the internal angles of a triangle must always be equal to 180 °.

This means that:

$32 + (2x-15) + (x-5)=180$

Now we solve the equation for the variable x

$32 + 2x-15 + x-5=180$

$2x+x +32-15-5=180$

$3x +32-20=180$

$3x +12=180$

We subtract 12 in both barks of the equation

$3x +12-12=180-12$

$3x=168$

Divide by 3 on both sides of the equation

$\frac{3}{3}x=\frac{168}{3}$

$x=\frac{168}{3}$

$x=56$

Finally the measure of angle ABC is: (56-5)° = 51°

6 0

3 years ago

Read 2 more answers

An experienced carpenter could build a house in 4 days. How much would he have if he worked for 2 days?

Novosadov [1.4K]

He would have half a house

8 0

3 years ago

Read 2 more answers

ANSWER ASAP GIVING BRAINLIEST 5 STARS AND A HEART!

Vinvika [58]

Answer:

Triples

Step-by-step explanation:

Circumference of circle =

where D is its diameter.

If D increase 3 times, Circumference increases 3 time.

Simple linear relationship.1

4 0

3 years ago

What is the answer for this question plz help

emmainna [20.7K]

So you swap sides and you have 3x=93 and then you divide 3 by 93 and you get x=31

6 0

3 years ago