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3 years ago

(2 + i)-(4 - 6/)(-3 +3/)

Mathematics

1 answer:

lana66690 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

(2+i)-(4-6i)(-3+3i)

=(2+i)-(-12+12i+18i-18i^2)

=(2+i)-[-12+30i-18(-1)]

=(2+i)-(-12+30i+18)

=(2+i)-(30i+6)

=2+i-30i-6

=-4-29i

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miv72 [106K]

Answer:

x-int (2, 0)

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General Formulas and Concepts:

The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.
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Step-by-step explanation:

Step 1: Locate x-intercept

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Answer:

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Step-by-step explanation:

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3 years ago

Determine the amplitude (A), period (P), and phase shift (PS) of the function f(x)= 3sin(x-4)+9

Tpy6a [65]

ANSWER

D.
$A=3,P=2\pi,PS=(4,9)$

EXPLANATION

The given function is

$f(x) = 3 \sin(x - 4) + 9$

Comparing to the general form of a trigonometric sine function,

$f(x) = A \sin(Bx-C)+D$

$A=3$
The amplitude is absolute value of A

$|A| = |3| = 3$

$B=1$

The period is given by

$p = \frac{2\pi}{ B}$

$p = \frac{2\pi}{ 1} = 2\pi$

$C=4$

is a shift to the right of 4 units.

and

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is an upward shift of 9 units

Therefore the phase shift is (4,9).

The correct answer is D

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