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3 years ago

How do I subtract 4 5/6 - 1 2/3

Mathematics

1 answer:

olga55 [171]3 years ago

4 0

Convert it into an improper fraction. Find your common denominator then subtract. If this doesn’t help let me know.

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PLS HELP ME ASAL FOR 7, 8, and 9. A and B! (SHOW WORK!!!!) + LOTS IF POINTS!! (BE SPECIFIC ON WHICH your ANSWERING)

nevsk [136]

Ok so
Q.1=B
Q.2=B
Q.3(a)=(d-45)+m+65
(b)=d+m+20

5 0

3 years ago

Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.

____ [38]

Let $z=-\sqrt3+i$ . Then

$|z|=\sqrt{(-\sqrt3)^2+1^2}=2$

$z$ lies in the second quadrant, so

$\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6$

So we have

$z=2e^{i5\pi/6}$

and the fourth roots of $z$ are

$2^{1/4}e^{i(5\pi/6+k\pi)/4}$

where $k\in\{0,1,2,3\}$ . In particular, they are

$2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}$

$2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}$

$2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}$

$2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}$

7 0

3 years ago

Solve for m.<br> 22m^2 + 7m - 2 = 0

pshichka [43]

Answer:

x= -1/2 and x=2/11

Step-by-step explanation:

Write the 7x as a difference. It'll make it easier to factor out. An example of this would be 11x-4x

Therefore, the equation would look like this: 22x^2 + 11x-4x -2 =0

Look at it as if there are two equations: 22x^2+11x and -4x-2

Factor out the greatest common factor, which is 11 from the first equation. The equation will then look like this: 11x(2x+1)

Take the GCF for the second equation as well (which is -2). The equation should then also look like this: (2x+1)

Use the numbers on the outside of each of the parenthesis to form its own equation (to factor it out). This will be 11x-2

Now we have factored! Since the parenthesis equations are the same, we know that that is also part of the equation, so:

(11x-2)(2x+1)

Solve each equation for x by equaling them both to zero

5 0

3 years ago

Line segment AB has a length of 2 units. It is translated 6 units to the right on a coordinate plane to obtain line segment A'B'

Sphinxa [80]

2 units
it has just moved, not changed lengths

6 0

3 years ago

If the point (-4,7) is reflected over the y- axis, what are the new coordinates of the refelected point

Alex73 [517]

(4,7) cause its moving to the positive x side flipping on y axis the rule is (x,y) -> (-x,y) flipping over x axis the rule is (x,y) -> (x,-y) where - is opposite in each equation like a 5 turns into -5 or -3 turns into 3

3 0

4 years ago

How do I subtract 4 5/6 - 1 2/3​

How do I subtract 4 5/6 - 1 2/3