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Dmitry_Shevchenko [17]
3 years ago
9

Hi there can you please help me

0%2B%20ak%7D%20%7D%20" id="TexFormula1" title="t = \sqrt{ \frac{ab - s}{r + ak} } " alt="t = \sqrt{ \frac{ab - s}{r + ak} } " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Tamiku [17]3 years ago
3 0

t=\sqrt{\dfrac{ab-s}{r+ak}}\\\\t^2=\dfrac{ab-s}{r+ak}\\\\rt^2+akt^2=ab-s\\\\akt^2-ab=-rt^2-s\\\\a(kt^2-b)=-(rt^2+s)\\\\a=-\dfrac{rt^2+s}{kt^2-b}\\\\a=-\dfrac{rt^2+s}{-(b-kt^2)}\\\\a=\dfrac{rt^2+s}{b-kt^2}

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A recipe calls for 2 cups of water for every 3 cups of flour. How much water is needed if you use 12 cups of flour?
Tju [1.3M]

Answer:

8 cups of water

Explanation:

2 cups of water = 3 cups of flour

x cups of water = 12 cups of flour

12/3=4

2x4=8

6 0
2 years ago
What is the nth term of 12 10 8 6 4 ?
tino4ka555 [31]

Answer:

-4

Step-by-step explanation:

The difference from each number is 2 so u keep subtracting 2 from each term until u get to the nth term. For ex: 12-2=10, 10-2=8, 8-2=6...

7 0
3 years ago
4x-6 + 2x = 18<br> What’s the answer
solmaris [256]

Answer:

x=4

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4x-6 + 2x = 18

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Add 6 to each side

6x-6+6 =18+6

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Divide each side by 6

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6 0
3 years ago
A square piece of paper 10 cm on a side is rolled to form the lateral surface area of a cylinder and then a top and bottom are a
Anika [276]

Answer:

The surface = pi*10cm2

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We know that the square originally has 10cm High, when is rolled to form a cylinder, it's new shape has a bottom side that is equals to a circle.

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6 0
2 years ago
Al obtener el valor de lo que costará la fiesta de graduación para tu grupo te das cuenta que el lugar que decidieron alquilar p
dybincka [34]

Explicación paso a paso:

Debemos buscar el costo de cada boleto y la cantidad de personas que deben ir.

Dada la función que da forma al comportamiento expresado como;

f (x) = (-2x) ^ 2 + 80x + 300 donde;

x es el costo de cada boleto

f (x) es el número de personas que deben ir

Para obtener x, usaremos la expresión;

x = -b / 2a

De la ecuación cuadrática dada, a = -2, b = 80 yc = 300

Sustituir;

x = -80/2 (-2)

x = -80 / -4

x = 80/4

x = 20

Por lo tanto, el boleto cuesta $ 20.

Lo siguiente es obtener la cantidad de personas que deben ir. Para conseguirlo, sustituiremos x = 20 en la expresión modelada como se muestra;

f (x) = (-2x) ^ 2 + 80x + 300

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f (20) = 3500

Por lo tanto, 3500 personas tienen que ir

8 0
3 years ago
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