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Charra [1.4K]
3 years ago
12

Multiply (4+I)(1-5i)

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0
The rule to remember for this problem is: i^2 = -1
(4 + i)(1 - 5i)
4 - 20i + i - 5i^2
4 - 19i + 5
9 - 19i
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I don’t understand the question pls help
Alex_Xolod [135]

Answer:

AC = 15.6

Step-by-step explanation:

AC = AE + EC

By he Pythagorean theorem,

A² + B² = C²

12² + 5² = AE²

144 + 25 = AE²

AE = √169

AE = 13

Find Angle AED

tan Angle AED = 12/5

Angle AED = tan-1 (12/5)

= 67.38°

Angle AED = Angle BEC

tan (67.38°) = BC/1

BC = 2.4

1² + 2.4² = EC²

6.76 = EC²

EC = √6.76

EC = 2.6

AC = 13 + 2.6

AC = 15.6

7 0
3 years ago
Write an equation for the exponential function represented in the table below
leva [86]
Y- mx+c
...................
5 0
3 years ago
-4x&lt;20<br> X&lt;-5<br> Describe the error that she made <br><br> What the answer
gizmo_the_mogwai [7]

Answer:

your supposed to flip the sign for the less than or greater than sighs when dividing by a negative.

Step-by-step explanation:

-4x←20

x→-5

3 0
3 years ago
Does anybody know this? Which of the properties of real numbers is illustrated in the following example.
Elenna [48]

The property of real numbers that was illustrated in the above example is known as the: D. inverse property.

<h3>What is the Inverse Property of Real Numbers?</h3>

The inverse property of real numbers states that if you add the opposite of a number together with that number, the result would be zero.

For example, if "a" represents a number, the opposite of the number "a" is -a.

Applying the inverse property of real numbers, it states that: a + (-a) = a - a = 0. Both numbers will cancel each other to give zero.

In the same vein, as shown in the image given above:

6 is a number

The opposite of 6 is -6.

Applying the inverse property of real numbers, we have:

6 + (-6) = 0.

In conclusion, we can state that given the expression, 6 + (-6) = 0, the property of real numbers that was illustrated in the above example is known as the: D. inverse property.

Learn more about the inverse property on:

brainly.com/question/17407789

#SPJ1

6 0
1 year ago
Help find the area of the shape
-Dominant- [34]

Answer:

44 cm²

Step-by-step explanation:

follow me for answering the question

4 0
3 years ago
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