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3 years ago

Solve for x x - 1 2 = 4

Mathematics

2 answers:

Firlakuza [10]3 years ago

8 0

Hey!

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Solution #1:

x - 12 = 4

x + (-12) = 4

x + (-12) + 12 = 4 + 12

x = 16 ✔

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Solution #2:

x - 1/2 = 4

x + (-1/2) = 4

x + (-1/2) + 1/2 = 4 + 1/2

x = 4 1/2 ✔

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Solution #3:

x - 1.2 = 4

x + (-1.2) = 4

x + (-1.2) + 1.2 = 4 + 1.2

x = 5.2 ✔

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Hope This Helped! Good Luck!

gtnhenbr [62]3 years ago

3 0

Answer:

Step-by-step explanation:

(x−1)2=4

Take the square root of each side of the equation to set up the solution for x

(x−1)2⋅12=±√4

Remove the perfect root factor x−1

under the radical to solve for x

x−1=±√4

Simplify the right side of the equation.

Tap for more steps...

x−1=±2

The complete solution is the result of both the positive and negative portions of the solution.

Tap for more steps...

x=3,−1

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postnew [5]

Answer:

$\frac{25}{4}$ (or 6.25)

Step-by-step explanation:

Let's do a simple square problem to see the relationship between the elements of the resulting equation...

$(x+3)(x+3) = x(x+3) + 3(x+3) = x^{2} +3x + 3x + 9 = x^{2} + 6x + 9$

As you see, the number of 'x' (6) is the double of the numeric part of the binomial expression (3), while the numeric-only part (9) is the square of the numeric part of the binomial expression (3).

So, if we look at the formula from the problem, we see the the number of 'x' is 5. To obtain the C value, we need to divide the 5 by 2... then get the square value of the result.

$\frac{5}{2} * \frac{5}{2} = \frac{25}{4}$ (or 6.25)

3 0

3 years ago

12. At noon the temperature was 30 degrees Celsius. At night it becomes 25 degrees Celsius. How

yawa3891 [41]

Answer:

5 degrees colder

Step-by-step explanation:

You take the starting point then subract the ending point and you get your answer. But in order to know if its colder or warmer is to know that the higher the number, the hotter, and the lower the number, the colder.

6 0

3 years ago

Read 2 more answers

Please help with this limit, I have tried everything but this won't work.

Vera_Pavlovna [14]

You're lucky that I was able to do this :)

The answer is $\huge\boxed{\frac{1}{4}}$

8 0

2 years ago

Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s

Lilit [14]

Answer:

$y-2=\displaystyle -\frac{3}{4}(x-1)$

$y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

Step-by-step explanation:

Hi there!

Point-slope form: $y-y_1=m(x-x_1)$ where m is the slope of the line and $(x_1,y_1)$ is a given point

Given that the slope is -3/4, we can plug it into $y-y_1=m(x-x_1)$ as m:

$y-y_1=\displaystyle -\frac{3}{4}(x-x_1)$

We can also plug in the given point (1,2):

$y-2=\displaystyle -\frac{3}{4}(x-1)$

Slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

To write the equation in slope-intercept form, isolate y:

$y-2=\displaystyle -\frac{3}{4}(x-1)\\\\y=\displaystyle -\frac{3}{4}(x-1)+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{3}{4}+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

I hope this helps!

8 0

2 years ago

PLEASE HELP URGENT!!!!

Dovator [93]

Answer:

£ 21552.13

Step-by-step explanation:

P= £18790

r =4.9% = $\frac{4.9}{100}=0.049$

t = 3 years

I = Prt

I = 18790 * 0.049 * 3

=£ 2762.13

After 3 years , the amount in Dan's account = 18790 + 2762.13

= £ 21552.13

7 0

3 years ago