Find the balance after 8 years

Answers

Answer 1

Answer: Here’s the equation: 3000+0.03(3000)
But because it is 8 years:
3000+0.24(3000)
We can make it simpler:
1.24(3000)
3720
Your balance will be $3720

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Which of the following is equivalent to xy3z2 + y2z + xyz when it is completely factored? *
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*
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Answers

The correct answer among the choices presented above is option C. The expression yz(xy2z + y + x) is the completely factored form of the given equation xy3z2 + y2z + xyz. When you distribute yz in option c, you will see that the answer is equal to the given equation.

Could you please solve me this exercice: :3 $x^2-5x+√(x^2-5x+7)=5$

Thank you a lot! :3 :3 :3

Answers

$Domain:x^2-5x+7\geq0\n\na=1;\ b=-5;\ c=7\n\n\Delta=b^2-4ac\to\Delta=(-5)^2-4\cdot1\cdot7=25-28=-3 < 0\n\ntherefore\ D:x\in\mathbb{R}$

$Find\ minimum\ value\ of\ x^2-5x+7\n\ny_(min)=(-\Delta)/(4a)\to y_(min)=(-(-3))/(4\cdot1)=\boxed{(3)/(4)}\n-----------------------------\nx^2-5x+√(x^2-5x+7)=5\ \ \ \ \ |add\ 7\ to\ both\ sides\n\nx^2-5x+7+√(x^2-5x+7)=12\n\nsubtitute\ t=x^2-5x+7\ (t\geq(3)/(4))\n\nt+√(t)=12\ \ \ \ |subtract\ t\ from\ both\ sides\n\n√(t)=12-t\ \ \ \ \ \ |square\ both\ sides$

$t=(12-t)^2\n\nt=12^2-2\cdot12\cdot t+t^2\n\nt=144-24t+t^2\n\nt^2-24t+144=t\ \ \ \ \ |subtract\ t\ from\ both\ sides\n\nt^2-25t+144=0\n\nt^2-9t-16t+144=0\n\nt(t-9)-16(t-9)=0\n\n(t-9)(t-16)=0\iff t-9=0\ or\ t-16=0\n\nt=9\ or\ t=16$

$t+√(t)=12\ therefore\ t=16\ is\ not\ a\ solution.$

$t=9\to x^2-5x+7=9\ \ \ \ |subtract\ 9\ from\ both\ sides\n\nx^2-5x-2=0\n\na=1;\ b=-5;\ c=-2\n\n\Delta=(-5)^2-4\cdot1\cdot(-2)=25+8=33\n\nx=(-b\pm\sqrt\Delta)/(2a)\to x=(5\pm√(33))/(2)$

$Answer:\n\boxed{x=(5-√(33))/(2)\ or\ x=(5+√(33))/(2)}$

if xy=0 then x or/and y must be 0 so we try to get it to zero later

so first we get the square root on one side by itself
so subtract x^2-5 from both sides (-x^2+5 to both sides)

√(x^2-5x+7)=-x^2+5x+5
square both sides (or both sides to the ^2 power)
gets rid of the √
x^2-5x+7=(-x^2+5x+5)^2=x^4-10x^3+15x^2+50x+25
so subtract x^2 from both sides
-5x+7=x^4-10x^3+14x^2+50x+25
add 5x to both sides
7=x^4-10x^3+14x^2+55x+25
subtract 7 from both sides
0=x^4-10x^3+14x^2+55x+18
factor
(x^2-5x-9)(x^2-5x-2)=0
(x^2-5x-9)=0
(x^2-5x-2)=0
I'm not sure how to proceed but if you can find the factors of (x^2-5x-2) and (x^2-5x-9) and set them to zero, you can get the answers

Not so good with mathematics

Answers

Answer:

2n-7

Step-by-step explanation:

the product of 2 and a number is 2 times a number, so number is n. (this is multiplicaiton) it then becomes 2n. 7 less than that is 2n-7. (If it's less than, it goes after the variables 2n)

Explanation:

7 less --> -7

product of 2 and a number --> 2x

Answer:

2x-7

I hope this Helps!!

Find the value of x part 1a

Answers

See the attached picture:

X = 9

Adapta la estrategia de Ismat y calcula qué cantidad de madera se requiere para construir el cajón de cultivo.6. Observa el gráfico y explica en tu cuaderno cómo se obtiene el volumen de un prisma
7. Calcula la cantidad de tierra que necesitará nuestro cajón de cultivo, haciendo uso de la propiedad para encontrar el volumen.

Answers

Answer:

Which of the given mathematical sentens are quadratic equation?

whats the most accurate estimation of 65+77

Answers

you could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150

the answer to your question is 142

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