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3 years ago

PLEASE HELP ASAP I REALLY NEED THIS

Mathematics

2 answers:

disa [49]3 years ago

4 0

The position that holds the most gravitational potential energy is 2

charle [14.2K]3 years ago

3 0

3 because gravity pulls and when the diver jumps he get pulled down into the water. so the correct answer is c hope helped :)

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Bob is six years older than his sister, and the sum of their ages is 32. how old is bob?/search?q=david+is+38+years+old+and+his+

erica [24]

Bob's age is 22
And her sisters age is 14
If you'll add 22&14 the answer would be 36
And if you'll subtract 22&14 the answer would be 6

4 0

3 years ago

Let the region R be the area enclosed by the function f(x)=ln(x) and g(x)= 1/2x-2. Find the volume of the solid generated when t

Neporo4naja [7]

Answer:

$V=61.66$

Step-by-step explanation:

This problem can be solved by using the expression for the Volume of a solid with the washer method

$V=\pi \int \limit_a^b[R(x)^2-r(x)^2]dx$

where R and r are the functions f and g respectively (f for the upper bound of the region and r for the lower bound).

Before we have to compute the limits of the integral. We can do that by taking f=g, that is

$f(x)=g(x)\\ln(x)=\frac{1}{2}x-2$

there are two point of intersection (that have been calculated with a software program as Wolfram alpha, because there is no way to solve analiticaly)

x1=0.14

x2=8.21

and because the revolution is around y=-5 we have

$R=ln(x)-(-5)\\r=\frac{1}{2}x-2-(-5)\\$

and by replacing in the integral we have

$V=\pi \int \limit_{x1}^{x2}[(lnx+5)^2-(\frac{1}{2}x+3)^2]dx\\$

$V=\pi [28x+\frac{1}{x}+xln^2x-12xlnx-6lnx]$

and by evaluating in the limits we have

$V=61.66$

Hope this helps

regards

3 0

3 years ago

If a(x) = 2x - 4 and b(x) = x + 2, which of the following expressions produces a quadratic function

Rina8888 [55]

Answer:

Step-by-step explanation:

Multiplying a(x) and b(x) together results in a quadratic equation (a trinomial). This trinomial looks like (a·b)(x) = (2)(x - 2)(x + 2). Note that this is a "special product;" (2)(x^2 - 4); there is no middle term.

7 0

3 years ago

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How much did rosemary pay per pound?

velikii [3]

Answer:

0.89

Step-by-step explanation:

2.24/3 = 0.89

She paid 89 cents per pound of tomatoes.

Have a great day!

Please rate and mark brainliest!

6 0

2 years ago

Help ASAP please ‼️

Gnesinka [82]

Answer:

Step-by-step explanation:

<h2><em><u>Plz thank me and mark me as a brainlists</u></em></h2>

5 0

3 years ago

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