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3 years ago

Find the product of 2x2(x + 6). 8x3 2x3 + 12x2 3x3 + 12x2 2x2 + x + 6

Mathematics

2 answers:

creativ13 [48]3 years ago

6 0

Answer:

I think the answer is D

Step-by-step explanation:

Verizon [17]3 years ago

5 0

The proper answer to this question would be 2

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After spending $3750 for tables and $3650 for chairs a convention center manager finds that the furniture cost 6% more than last

pshichka [43]

Answer:

$6981

Step-by-step explanation:

Let's find the answer by using the following formula:

(this year cost)=(last year cost)+((last year cost)*(percent increase of cost)) so:

3750+3650=X+0.06X where X=last year cost, then:

7400=1.06X

6981.13=X

In conclusion, last year he spent $6981.

7 0

3 years ago

Indefinite integral need help pleaseeeeeee

tatiyna

Integrate indefinite integral:
$I=\int\frac{dx}{e^{2x}+3e^x+2}dx$

Solution:
1. use substitution $u=e^x$
=>
$du=e^xdx$
=>
$dx=\frac{du}{e^x}$
=>
$dx=\frac{du}{u}$
=>
$I=\int\frac{du}{u(u^2+3u+2)}du$
$=\int\frac{du}{u(u+2)(u+1)}du$
2. decompose into partial fractions
$\frac{1}{u(u+2)(u+1)}$
$=\frac{A}{u}+\frac{B}{u+2}+\frac{C}{u+1}$
where A=1/2, B=1/2, C=-1
$=\frac{1}{2u}+\frac{1}{2(u+2)}-\frac{1}{u+1}$
3. Substitute partial fractions and continue
$I=\int\frac{du}{2u}+\int\frac{du}{2(u+2)}-\int\frac{du}{u+1}$
$=\frac{log(u)}{2}+\frac{log(u+2)}{2}-log(u+1)}$
4. back-substitute u=e^x
$=\frac{log(e^x)}{2}+\frac{log(e^x+2)}{2}-log(e^x+1)}$
$=\frac{x}{2}+\frac{log(e^x+2)}{2}-log(e^x+1)}$

Note: log(x) stands for natural log, and NOT log10(x)

7 0

2 years ago

= (1) - (179+6) (9+52i)-(1)

deff fn [24]

179+6=185

1-185= -184

9-1+52i= 8+52i

4 0

3 years ago

Use the distance formula to decide whether ab=bc A(4,2) B(-1,-1) C(-6,-4)

quester [9]

$AB= \sqrt{(-1-4)^2+(-1-2) ^{2} }= \sqrt{(-5)^2+(-3)^2}= \sqrt{34} \\ \\ BC= \sqrt{(-6+1)^2+(-4+1) ^{2} }= \sqrt{(-5)^2+(-3)^2}= \sqrt{34} \\ \\ \sqrt{34}= \sqrt{34} \ \ \to \ \ AB=BC$

4 0

3 years ago

Only t circled ones somebody plz help I am gonna get a 0 plz help I will give you brainleist

Vikki [24]

Step-by-step explanation:

1) A number m is at least four

m ≥ 4 ['at least' = ≥ symbol]

2) 4x ≤ 20x; x=2

4(2) ≤ 20(2)

8 ≤ 40

[Im not sure if this is a solution or and inequality :/ ]

3) x < 5

--> On the line, draw the number 0, and the number five. 'x < 5' also means 'x is less that five.' So, draw a dot over the line before 5, and make an arrow going to the left of the page,

<-----------------------------------o 5

<---|---|---|---|---|---|---|---|---|---|---|---|---|---|--->

Hopefully this helps! :)

4 0

2 years ago