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two

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

\(\frac{x-1}{2} +1= \frac{x+1}{4}\)

\(\frac{2x-2+4}{4}=\frac{x+1}{4} \) 

\(2x+2=x+1\) 

\(x=-1\) 

\(Sample:\)

\(\frac{-1-1}{2} +1= \frac{-1+1}{4}\) 

\(0=0\)

how do you do .72 repeated into a simplifyed fraction?

\(0.72= \frac{72}{100}=\frac{18}{25} \)

\(\)

Thanks Alan!

You have included an extra -2 that isn't in the original question asinus!

2-4*3^-1-6*3^-2 this is = 0 but why? can someone explain?

\( 2-4\times \frac{1}{3} -6\times \frac{1}{3^{2} } \)

= \(2-\frac{4}{3} -\frac{6}{9}\)

= \(2-\frac{18}{9} \)

= \(2-2\)

= \(0\)

\( More \ does \ not \ remain. \) 

asinus :- )  !

4*3^-1 → 4/3

6*3^-2 → 6/9 → 2/3

Hence:

2 - 4*3^-1 - 6*3^-2 → 2 - 4/3 - 2/3  → 2 - 6/3  → 2 - 2  → 0

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Hoe to rearrange rt=pt+2 make r the subject

rt=pt+2 divide both sides by t

r = p + 2/t

Let f(x) = 6x − 5, if x ≤ −5

      f(x) = −x^2, if x > −5 .

Find f(−3), f(−5), and f(−6).

f(-3):   -3 > -5 so f(-3) = -(-3)^2  or f(-3) = -9

f(-5):   -5 = -5 so f(-5) - 6*(-5) - 5  or f(-5) = -35

f(-6):  Now you try this one.

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You make sense until this line:  y= 49/20 - 49/70 

This doesn't follow from: y= 5 (7/10)^2 - 7 (7/10)

You should have:  y = 49/20 - 49/10 instead

I'll leave you to take it from there.

And it isn't a peak, it's a trough:

.

How would you solve this? -15-6c+3b-6c+9-2b

\(\)

\(-15 - 6c + 3b - 6c + 9 - 2b = - \ 6 + b -12c \)

tan A=0.2867

tan A = 0.286745385759

A = atan 0.286745385759

A_deg = 16°

A_rad = 0.27925

That symbol is called a bracket! It is mostly used in graphing in math classes. Brackets generally denotes some form of grouping. Another time it is used ih graphing piece wise functions. For example, if you have seen open and closed circles in graphs, the point on the closed circle will have a bracket 

Sine is used in many different areas of math. From my current experience in high school calculus, sine is used in the unit circle, graphing sine itself, and incorporation with trigonomic ratios in including Law of Sine and the Ambigious Case.

The number given is 216k, or 216000.

Using a calculator, you could just simply plug in radical 216000.

Once you get the number (which in this case is 464.758001545), you plug it into the 4th power.

Once you plug it to the 4th power, the answer should be 46656000000

Or in scientific notation: (4.6656 × 10^9)

Negative 2/3 looks like -2/3 or -0.66666666666.

Negative 3 is -3.

Negative 2.4 in -2.4.

The square root of 9 equals to 3.

The only number that isnt negative is the square root of 9. The square root of 9 is positive three (3). Therefore, the square root of 9 is the biggest out of the other numbers.

First, combine like terms. The like terms in this equation at 2x and -3x. Once you combine the like terms, you should get -1x or -x. Next is to move the 4 to the other side of the equation sign. To do this, subtract 4 on each side. The final equation should look like -1x=-15. Then just divide each side by -1 and you will find x.

You do your work properly and be very pleased that you have a teacher who can at least control the class and thereby provide a resonable learning environment for you.

Many students would love to have this complaint !