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2 years ago

Please help me I need to pass this:(

Mathematics

1 answer:

Fynjy0 [20]2 years ago

7 0

It is 124 i think :)

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Determine if the sequence is arithmetic. If it is, find the common difference.

Iteru [2.4K]

Answer:

Yes, they are adding 100 every time.

Step-by-step explanation:

4 0

2 years ago

Find the volume of the solid formed by revolving the region bounded by the graphs of y = x^3, x = 2, and y = 1 about the y-axis.

andrezito [222]

Since the rotation is about the y-axis, I'll integrate by dy.

$\displaystyle y=x^3\\x=\sqrt[3]y\\\\V=\pi \int \limits_1^8(2^2-(\sqrt[3]y)^2)\, dy\\V=\pi \Big[4x-\dfrac{3}{5}x^{\tfrac{5}{3}}\Big]_1^8\\V=\pi \left(4\cdot8-\dfrac{3}{5}\cdot8^{\tfrac{5}{3}\right-\left(4\cdot1-\dfrac{3}{5}\cdot1^{\tfrac{5}{3}\right)\right)\\V=\pi \left(32-\dfrac{96}{5}-\left(4-\dfrac{3}{5}\right)\right)\\V=\pi \left(\dfrac{64}{5}-\dfrac{17}{5}\right)\\V=\dfrac{47\pi}{5}$

3 0

3 years ago

Blopie help me :(((((

12345 [234]

Step-by-step explanation:

first you have to see the triangle BCD

then hypotheses and perpendicular are given so you have to find base

after finding base. In rectangle ABCD DC is length and BC is breadth so now you can find area by using the formula A = l×b

3 0

3 years ago

Solve the inequality: -7y - 3x < 21

SashulF [63]

Answer:

x> -7/3y -7

Step-by-step explanation: -7y-3x<21

Step 1: Add 7y to both sides.

−3x−7y+7y<21+7y

−3x<7y+21

Step 2: Divide both sides by -3.

-3x/-3 < 7y+21/-3

x>-7/3y -7

7 0

3 years ago

Please help! / 50 points

lutik1710 [3]

Answer:

Solution given:

radius [r]=4

height [h]=5

we have

Surface area of cylinder=2πr(r+h)

=2π×4(4+5)

=<u>72πunits³ is a required volume.</u>

3 0

3 years ago