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3 years ago

Four friends contribute the sum of the money to a charitable organization in

Mathematics

1 answer:

slamgirl [31]3 years ago

8 0

Answer: 80

Step-by-step explanation: Please see attachment for explanation

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What is the sum of 5 feet 9 inches and 12 feet 3 inches

mestny [16]

5 ft + 12 ft = 17 ft

9 in + 3 in = 12 in = 1 ft 

17 ft + 1 ft = 18 ft
hope this helps

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2 years ago

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A cabbage is worth 55 points, an apple is worth 40 points, a potato is worth 45 points and a pumpkin is worth 60 points. How man

Vera_Pavlovna [14]

The cabbage is lots of points

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2 years ago

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What is the horizontal asymptote of f(x)=-2x/x+1?

posledela

The horizontal asymptote is y=-2

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3 years ago

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Write the equation in slope-intercept form of the line that has a slope of -7/8 and contains the point (-4, 9).

lubasha [3.4K]

Answer:

The equation of the line is y = -7/8x + 11/2

Step-by-step explanation:

Since we have the slope and a point to start, we can use point-slope form to find the equation.

y - y1 = m(x - x1)

Use the slope for m and the point at (x1, y1). Then solve for y.

y - 9 = -7/8(x + 4)

y - 9 = -7/8x - 7/2

y = -7/8x + 11/2

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3 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

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

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2 years ago