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3 years ago

Simplify 7a – 11b + 4ab – 6a + 5b.

Mathematics

1 answer:

AnnZ [28]3 years ago

5 0

7a-6a-11b+5b+4ab
=a-6b+4ab
Final answer

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1) Erik has a job at Hobby Lobby and he

Artyom0805 [142]

Answer:

Step-by-step explanation:

is there more to this problem?

13. 00* 6 = 78

7 0

2 years ago

Find the average value of the function on the given interval. f(x)=2 ln x; [1,e]

JulijaS [17]

Answer:

$f_{avg}=\frac{1}{e-1}$

Step-by-step explanation:

We are given that a function

$f(x)=2lnx$

We have to find the average value of function on the given interval [1,e]

Average value of function on interval [a,b] is given by

$\frac{1}{b-a}\int_{a}^{b}f(x)dx$

Using the formula

$f_{avg}=\frac{1}{e-1}\int_{1}^{e}lnx dx$

By Parts integration formula

$\int(uv)dx=u\int vdx-\int(\frac{du}{dx}\int vdx)dx$

u=ln x and v=dx

Apply by parts integration

$f_{avg}=\frac{1}{e-1}([xlnx]^{e}_{1}-\int_{1}^{e}(\frac{1}{x}\times xdx))$

$f_{avg}=\frac{1}{e-1}(elne-ln1-[x]^{e}_{1})$

$f_{avg}=\frac{1}{e-1}(e-0-e+1)=\frac{1}{e-1}$

By using property lne=1,ln 1=0

$f_{avg}=\frac{1}{e-1}$

8 0

3 years ago

What is the area of the floor of a room that is 12 feet wide and 18 feet long

BabaBlast [244]

area of floor = length * width

length =18 feet

width =12 feet

area =12*18 = 216 feet square

7 0

3 years ago

Read 2 more answers

Round off the following decimal numbers to the nearest whole number.

ElenaW [278]

Answer:

where are the decimal numbers?

6 0

3 years ago

13x - 3 4. 6x + 1 68

Rasek [7]

Answer:

= -21.6x + 168

Step-by-step explanation:

Combine Like Terms

13x -34.6x + 168

13x + - 34.6x + 168

(13x+ -34.6x) + 168

-21.6x + 168

3 0

3 years ago