3 years ago

If the Diameter of a circle is 20, please find:

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

8 0

Hope this will help u...:)

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Please help me really need help in this math proplem

nadya68 [22]

.h.i. i think i know the answer

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3 years ago

A force of 18 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i

Wittaler [7]

Answer: 18.75 lb.ft

Step-by-step explanation:

Given

Force required to stretch spring 8 in. is 18 lb

it can be written

$\Rightarrow F=kx\\\Rightarrow 18=k(8)\\\\\Rightarrow k=\dfrac{18}{8}=\dfrac{9}{2}\ lb/in.$

Work done in stretching from its natural length to 10 in.

$\Rightarrow W=\dfrac{1}{2}kx^2\\\\\Rightarrow W=0.5\times \dfrac{9}{2}\times (10)^2\\\\\Rightarrow W=225\ lb.in.\ or\\\Rightarrow W=18.75\ lb.ft$

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3 years ago

What is 1/2 minus 3/7

Natali [406]

1/14 because you have to have common denominators so you multiply 1/2 by 7/7 and multiply 3/7 by 2/2 so you end up getting 7/14 - 6/14 = 1/14

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3 years ago

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Can you please help me

Sonja [21]

2-4 would equal

-2t/t+3.

Then you have to combine like terms.

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4 years ago

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<img src="https://tex.z-dn.net/?f=3n%5E%7B2%7D%20-8n%2B4%5C%5C" id="TexFormula1" title="3n^{2} -8n+4\\" alt="3n^{2} -8n+4\\" ali

Yuki888 [10]

$Hello$ $There!$

Here's a explanation!

Factor:

$3n^2-8n+4$

$= (3n-2)(n-2)$

$ANSWER!$

$(3n-2(n-2)$

Hopefully, this helps you!

$AnimeVines$

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3 years ago

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