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3 years ago

Subtract the following expression (12x+6)-(5x+2)

Mathematics

1 answer:

xxMikexx [17]3 years ago

5 0

Answer:

7x+8

Step-by-step explanation:

12x-5x + 6 + 8

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Shtirlitz [24]

Answer with Step-by-step explanation:

Let x and y are two numbers

According to question

$x^2+y^2=100$ ....(1)

Suppose x is larger than y

$x^2=x(4y+8x)$

$x=4y+8x$

$x-8x=4y$

$-7x=4y$

$y=-\frac{7}{4}x$

Substitute the value of y

$x^2+(-\frac{7}{4}x)^2=100$

$x^2+\frac{49}{16}x^2=100$

$\frac{16x^2+49x^2}{16}=100$

$\frac{65}{16}x^2=100$

$x^2=\frac{16\times 100}{65}$

$x=\sqrt{\frac{1600}{65}}=\frac{40}{\sqrt{65}}=\frac{40}{65}\sqrt{65}=\frac{8}{13}\sqrt{65}$

$y=-\frac{7}{4}\times \frac{8}{13}\sqrt{65}=-\frac{14}{13}\sqrt{65}$

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2 years ago

How many solutions does the following equation have? 14x + 12] = 0

Marysya12 [62]

Answer:

$x=-\frac{6}{7}$

It has one solution

Step-by-step explanation:

$14x + 12] = 0\\\\14x+12=0\\\mathrm{Subtract\:}12\mathrm{\:from\:both\:sides}\\14x+12-12=0-12\\\\Simplify\\14x=-12\\\\\mathrm{Divide\:both\:sides\:by\:}14\\\frac{14x}{14}=\frac{-12}{14}\\\\Simplify\\x=-\frac{6}{7}$

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3 years ago

Which of the following graph is the solution -10<3x-4<8

satela [25.4K]

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( − 2 , 4 )

Step-by-step explanation:

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3 years ago

For any circle, which ratio is equal to the number n? Select all that apply. Plsss help me!!

barxatty [35]

Answer:

Options A-C-F

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=\pi D$ or $C=2\pi r$

where

D is the diameter and r is the radius

therefore

$\pi =\frac{C}{D}$ or $\pi =\frac{C}{2r}$

The number pi is the ratio circumference - diameter or is the ratio circumference - 2 times radius

The area of the circle is equal to

$A=\pi r^{2}$

therefore

The number pi is the ratio Area - radius squared

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3 years ago

Solve the following system by graphing and identify the point of intersection -5x+2y=-4 2x-y=2

FrozenT [24]

Answer: Point of intersection (0, -2)

Step-by-step explanation:

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1 year ago

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Subtract the following expression (12x+6)-(5x+2)​

Subtract the following expression (12x+6)-(5x+2)