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3 years ago

Gusy help asap due in 5 minutes...!

Mathematics

2 answers:

charle [14.2K]3 years ago

6 0

Answer:

c) πr2h is the answer

Step-by-step explanation:

Gekata [30.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

got it from www

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A, B & C form the vertices of a triangle, where

Brrunno [24]

Answer:

60.6°

Step-by-step explanation:

Tan ACB = opp/adj

= 10.3/5.8

ACB = 60.61584287 = 60.6

6 0

4 years ago

Write the partial fraction decomposition fro the ration expression below

zlopas [31]

$\dfrac{5x-2}{(x-1)^2}=\dfrac a{x-1}+\dfrac b{(x-1)^2}$
$5x-2=a(x-1)+b$

Since $5x-2=5x-5+3=5(x-1)+3$ , it follows that $a=5$ and $b=3$ , so

$\dfrac{5x-2}{(x-1)^2}=\dfrac5{x-1}+\dfrac3{(x-1)^2}$

$\dfrac{x^3+x^2+x+2}{x^4+x^2}=\dfrac{x^3+x+x+2}{x^2(x^2+1)}=\dfrac ax+\dfrac b{x^2}+\dfrac{cx+d}{x^2+1}$
$x^3+x^2+x+2=ax(x^2+1)+b(x^2+1)+(cx+d)x^2$
$x^3+x^2+x+2=(a+c)x^3+(b+d)x^2+ax+b$

When $x=0$ , you find that $b=2$ . It's also clear that $a=1$ . So the remaining constants must be $1+c=1\implies c=0$ and $2+d=1\implies d=-1$ , and so you get

$\dfrac{x^3+x^2+x+2}{x^4+x^2}=\dfrac1x+\dfrac2{x^2}-\dfrac1{x^2+1}$

6 0

4 years ago

Among all pairs of numbers with a sum of 215, find the pair whose product is maximum. Write your answers as fractions reduced to

valentina_108 [34]

Answer:

Step-by-step explanation:

This is calculus, but I don't get fractions in the end. To maximize or minimize any function, you need to find the derivative of it, set it equal to 0, then solve for the critical values.

Our given equation is

x + y = 215 and we want to maximize the product, xy. Therefore,

y = 215 - x so its product in terms of x is

x(215-x) which is

$215x -x^2$ . The derivative of this is

215 - 2x. Set it equal to 0 to maximize it.

215 - 2x = 0 so

-2x = -215 and

x = 107.5.

Sub this in to solve for y:

y + 107.5 = 215 and

y = 107.5

The product is 11556.25, not that you need it.

6 0

3 years ago

Find the area of the region under the graph of the function f on the interval [1, 8].

nadezda [96]

F(x)=3/x it’s 6x(7) now can I get thanks

4 0

3 years ago

A psychologist collects data on the time, w, in minutes, people walk each day and their scores, t ,on a stress test. The scores

Svetach [21]

The answer is the last one D that is the correct answer
good lock!!!

7 0

3 years ago