CAN ANYONE PLEASE HELP ME IM IN A RUSH

Mathematics

1 answer:

AnnZ [28]2 years ago

3 0

Answer:

I forgot to change pi into 3.14

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Differential equation problem<br><br> How did they get v(x)?

Sophie [7]

You can find it by integrating twice:

$\displaystyle\int v''(x)\,\mathrm dx=\int(-6x+2)\,\mathrm dx\iff v'(x)=-3x^2+2x+C_1$
$\displaystyle\int v'(x)\,\mathrm dx=\int(-3x^2+2x+C_1)\,\mathrm dx\iff v(x)=-x^3+x^2+C_1x+C_2$

Given that $v(0)=0$ , you have

$0=-0^3+0^2+0C_1+C_2\implies C_2=0$

and given $v(1)=-1$ ,

$-1=-1^3+1^2+C_1\implies C_1=-1$

$\implies v(x)=-x^3+x^2-x$

3 0

3 years ago

Suzan normally earns $300 a month working part time at an appliance store. She worked 17 hours extra over a holiday weekend, for

Alexxx [7]

Answer: Correct answer is not listed, is there an option for D? Or was the question worded wrong?

The correct answer to the question you asked would be $716.50

Step-by-step explanation:

17 hours × $24.50 = $416.50

But it says she usually earns $300, and this month she worked 17 extra hours.

So to me, that sounds like you would add her usual earnings to her extra earnings to get the total for the month.

$300 + $416.50 = $716.50

However, if there is not an option for this amount, then the question was just worded a little off and the next best answer would be $416.50 which is the amount of extra income she made while working those extra 17 hours.

6 0

3 years ago

archy bought 15 gallons of gas for $23.85. Joe bought 16 gallons of gas for $24.48. who paid less per gallon?

tekilochka [14]

Archy: 15 gallons ... $23.85
1 gallon ...$ x = ?

x * 15 = 1 * 23.85 /15
x = 23.85 / 15
x = $1.59 per gallon

Joe: 16 gallons ... $24.48
1 gallon ... $ y = ?

y * 16 = 1 * 24.48 /16
y = 24.48 / 16
y = $1.53 per gallon

Result: Joe paid less per gallon.

3 0

3 years ago

6c+14=−5c+4+9c<br><br> What does C equal?

maria [59]

Answer: c = -5

Step-by-step explanation:

$6c+14=-5c+4+9c$