All categories

3 years ago

Which of the following is equivalent to (x+4)(3x^2+2x)?

Mathematics

1 answer:

Mrrafil [7]3 years ago

7 0

We can multiple this binomial and this trinomial to find an equivalent expression.

(x + 4)(3x^2 + 2x)

3x^3 + 2x^2 + 12x^2 + 8x

Combine like terms.

3x^3 + 14x^2 + 8x is the equivalent polynomial.

You might be interested in

A) 18 is 25% of what<br><br> B) What percent of 40 is 22

Kamila [148]

25% = 18

1% = 18 ÷ 25 = 0.72

100% = 0.72 x 100 = 72

Answer: (A) = 72

22/40 x 100% = 55%

Answer: (B) 55%

4 0

3 years ago

Cody has $ 700 in a savings account that pays 4% simple interest .what is the amount of simple interest he will earn in 2 years

natka813 [3]

P=700                 i=prt
r=4%                  i=700 x .04 x 3
t=2yr                   i=84

8 0

3 years ago

What is the GCF of 30, 45, and 75

Alchen [17]

Answer: GCF is 15

Step-by-step explanation:

4 0

2 years ago

HURRY WILL MARK BRAINLIEST IMAGE ATTACHED.

Mashcka [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find the sum of the convergent series 7 0.7 0.007

mafiozo [28]

$7+0.7+0.007+\cdots=7\left(1+\dfrac1{10}+\dfrac1{100}+\cdots\right)$

Let $S_n$ denote the $n$ th partial sum of the series, i.e.

$S_n=1+\dfrac1{10}+\dfrac1{100}+\cdots+\dfrac1{100^n}$

Then

$\dfrac1{10}S_n=\dfrac1{10}+\dfrac1{100}+\dfrac1{1000}+\dfrac1{10^{n+1}}$

and subtracting from $S_n$ we get

$S_n-\dfrac1{10}S_n=\dfrac9{10}S_n=1-\dfrac1{10^{n+1}}$
$\implies S_n=\dfrac{10}9\left(1-\dfrac1{10^{n+1}}\right)$

As $n\to\infty$ , the exponential term vanishes, leaving us with

$\displaystyle\lim_{n\to\infty}S_n=\dfrac{10}9$

and so

$7+0.7+0.007+\cdots=7.777\ldots=\dfrac{70}9$

3 0

3 years ago