3 years ago

2ci 1=-d 6-ci solve for c and d

1 answer:

5 0

Imaginary numbers ? just equate the imaginary with imaginary and real with real

2ci 1=-d 6-ci <<< what the * is that ?

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If f(x)=-5x-11, then f^-1(x)=

Ludmilka [50]

F^-1(x) is the inverse so...
f^-1(x) = (-1/5)x - 11/5

7 0

4 years ago

X + y = -1 4x - 2y = -16

djyliett [7]

Answer:

$x=-3 \\and\\ y=2$

Step-by-step explanation:

$x + y = -1$ Equation:1

$4x - 2y = -16$ Equation:2

Solving Equation:1

$x+y=-1$

Subtracting 'y' from both the sides:

$x+y-y=-1-y\\\\x=-1-y$

Putting 'x' in Equation :2

$4(-1-y)-2y=-16\\\\-4-4y-2y=-16\\\\-4-6y=-16$

Adding '4' both the sides

$-6y=-16+4\\\\-6y=-12\\\\y=-12/-6\\\\y=2$

Putting the value of 'y' in equation:1

$x+y=-1$

$x+(2)=-1\\\\x=-1-2\\\\x=-3\\$

The solution is:

$x=-3 \\and\\ y=2$

6 0

3 years ago

Jose earned 50 points in a video game. He lost 45 points, earned 87 points, then lost 25 more points. Enter and evaluate an expr

Olin [163]

Answer:

50-45+87-25=67

Step-by-step explanation:

earning is + so +50

losing is - so -45

+87

-25

7 0

3 years ago

The coordinates of point P are (−3, 4). What are the coordinates of the point that is a reflection of point P over the y-axis? (

ahrayia [7]

The answer would be ( 3 , 4 )

7 0

3 years ago

Read 2 more answers

K over x = w over v solve for x

Amiraneli [1.4K]

$\frac{k}{x}$ = $\frac{w}{v}$ Multiply both sides by v
 $\frac{kv}{x}$ = w Multiply both sides by x
kv = wx Divide both sides by w
 $\frac{kv}{w}$ = x Switch the sides to make it easier to read
x = $\frac{kv}{w}$

6 0

3 years ago