3 years ago

I REALLY NEED HELP ASAP

Mathematics

1 answer:

xeze [42]3 years ago

6 0

Answer:

I'm pretty sure it's C

Step-by-step explanation:

because that equation simplifyed = -7/8x-8

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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.

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

8 0

3 years ago

The length of a side is only the positive square root because length cannot be ________.

arsen [322]

Length cannot be negative.

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4 years ago

PLEASE HELP ME I DON’T GET IT & IT DUE SOON !!!!!

s2008m [1.1K]

Answer:

Step-by-step explanation:

cows chickens legs animals

1 11 26 (1×4+11×2=4+22=26) 1+11=12

2 9 26 (2×4+9×2=8+18=26) 2+9=11

3 7 26 (3×4+7×2=12+14=26) 3+7=10

4 5 26 (4×4+5×2=16+10=26) 4+5=9

5 3 26 (5×4+3×2=20+6=26) 5+3=8

6 1 26 (6×4+1×2=24+2=26) 6+1=7

1. minimum number of animals=7

2. chickens=3

3. cows=4

chickens=5

6 0

3 years ago

HELP ME PLS IF IT LINEAR OR NONLINEAR

klasskru [66]

I think it’s linear. no numbers repeat. i could be wrong but LOL

4 0

3 years ago

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Y<br><img src="https://tex.z-dn.net/?f=y2%20%2B%20%20%5Cfrac%7B4%7D%7By%7D%20%20%3D%202%20%5C%5C%20" id="TexFormula1" title="y2

MAVERICK [17]

Answer:

${y}^{2} + \frac{4}{y} = 2 \\ {y}^{3} + 4 = 2y \\ {y}^{3} - 2y + 4 = 0 \\ y = - 2, \: \: \: \: 1 + i$

5 0

3 years ago