Why isn’t there a commutative property for subtraction as well as for addition?

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

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Alex Ar [27]

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Step-by-step explanation:

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3 years ago

The region bounded by y=5/x, y=0, x=1, and x=3 is rotated about the x-axis. find the volume of the resulting solid.

brilliants [131]

Volume of Revolution = $\pi \int\limits^b_a {y^{2}} \, dx$
Volume of Revolution = $\pi \int\limits^3_1 { (\frac{5}{x})^{2}} \, dx$
= $\pi \int\limits^3_1 ({\frac{25}{x^{2}}) \, dx$
= $25\pi \int\limits^3_1 ({\frac{1}{x^{2}}) \, dx$
= $25\pi \int\limits^3_1 ({x^{-2}}) \, dx$
= $25\pi \ ^{3} [-x^{-1}] _{1} 
$
$= 25\pi\ ((-1/3) - (-1/1)) \\
= 25\pi\ (2/3) \\
= 50/3 \pi\ units^{3}$

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4 years ago

Please help on number 15

malfutka [58]

76 because what u do to one number is done to the other so u have to subtract 24 to both numbers. Can u mark me as brainliest??

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3 years ago

Can someone please help me with this? Right answer gets brainliest!!

Kipish [7]

Answer:

Part 1: y= 49

Part 2: y=12

Step-by-step explanation:

Part 1: The y is going up by 7, so if you add 7 to 42, you get 49

Part 2: The y is going up by 4, so if you add 4 to 8, you get 12

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3 years ago

C please I named it rn!! I CANT GRADUATE Without IT!

vazorg [7]

.05*2000=100 Non-Sporting
.06*2000=120 Herding
.24*2000=480 Sporting
.21*2000=420 Working
.16*2000=320 Hound
.16*2000=320 Terrier
.12*2000=240 Tay

Hope I didn't mess up for your sake

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4 years ago