3 years ago

How many degrees has (triangle)ABC been rotated counterclockwise about the origin?

Mathematics

1 answer:

Kazeer [188]3 years ago

8 0

Answer:

180°

Step-by-step explanation:

180

You might be interested in

Identify the x-intercept

sveta [45]

im quite positive that the x-intercept is 1,6

8 0

3 years ago

Find the terminal point p(x y) on the unit circle determined by the given value of t. t = -3 pi / 2

Vlada [557]

-3pi/2 is the same thing as pi/2

the terminal point on the unit circle for pi/2 is (0,1)

so that means the terminal point for -3pi/2 is also (0,1).

7 0

3 years ago

g 7. Find Re f and Im f and find their values at the given z. (Both answers should be included) f = z⁄(z + 1), z = 4 − 5

Schach [20]

Answer:

The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

Step-by-step explanation:

Let be $f(z) = \frac{z}{z+1}$ , the following expression is expanded by algebraic means:

$f(z) = \frac{z\cdot (z-1)}{(z+1)\cdot (z-1)}$

$f(z) = \frac{z^{2}-z}{z^{2}-1}$

$f(z) = \frac{z^{2}}{z^{2}-1}-\frac{z}{z^{2}-1}$

If $z = 4 - i5$ , then:

$z^{2} = (4-i5)\cdot (4-i5)$

$z^{2} = 16-i20-i20-(-1)\cdot (25)$

$z^{2} = 41 - i40$

Then, the variable is substituted in the equation and simplified:

$f(z) = \frac{41-i40}{41-i39} -\frac{4-i5}{41-i39}$

$f(z) = \frac{37-i35}{41-i39}$

$f(z) = \frac{(37-i35)\cdot (41+i39)}{(41-i39)\cdot (41+i39)}$

$f(z) = \frac{1517-i1435+i1443+1365}{3202}$

$f(z) = \frac{2882+i8}{3202}$

$f(z) = \frac{1441}{1601} + i\frac{4}{1601}$

The real and imaginary parts of the result are $\frac{1441}{1601}$ and $\frac{4}{1601}$ , respectively.

8 0

3 years ago

What is A? <br> plz help i will give brainliest

FromTheMoon [43]

Answer:

A=n*2+15n+36

Step-by-step explanation:

4 0

3 years ago

Simplify -7- the square root of 98 over 7

Dima020 [189]

Answer:

1.4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers