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4 years ago

A number written in the form of a + bi is called a

Mathematics

1 answer:

butalik [34]4 years ago

4 0

It is called a complex number.

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Triangle ABC is formed by two parallel lines and two other intersecting lines. Find the measure of each angle A, B, and of the t

Mamont248 [21]

Answer:

A = 61°

B = 72°

C = 47°

Step-by-step explanation:

Well, first of all, we can see that:

$61^{\circ}+47^{\circ}+B^{\circ}=180^{\circ}$

So, we can find angle B.

$B=180^{\circ}-47^{\circ}-61^{\circ}$

$B=72^{\circ}$

Now, we can see to that angle C is just 47°

Finally, we know that the sum of all angles in a triangle is 180°, so we have:

$B+A+C=180^{\circ}$

$A=180^{\circ}-47^{\circ}-72^{\circ}$

$A=61^{\circ}$

I hope it helps you!

6 0

3 years ago

What is the solution of the system of equations ? 2x-y=7 y=2x+3

LuckyWell [14K]

2x-y = 7 so y = 2x - 7
y = 2x+3

2x - 7 = 2x + 3
0 = 10

Answer
No solution

4 0

3 years ago

For a-b, reduce to the least non-negative residue

Olenka [21]

Answer:

a. 6

b. 9

Step-by-step explanation:

a. The product modulo 7 can be found from the product of the individual numbers modulo 7:

(88·95·36·702) mod 7 = (88 mod 7)·(95 mod 7)·(36 mod 7)·(703 mod 7) mod 7

= (4·4·1·3) mod 7 = 48 mod 7 = 6

b. Powers of 4 mod 11 repeat with period 5:

4 mod 11 = 4

4^2 mod 11 = 5

4^3 mod 11 = 9

4^4 mod 11 = 3

4^5 mod 11 = 1

So, 4^83 mod 11 = 4^3 mod 11 = 9

3 0

4 years ago

Help asap !!!!!!!!!!

My name is Ann [436]

Answer:

Diagram 2= 5

Diagram 3=10

Diagram 4= 15

Diagram 8 would be 35

Step-by-step explanation:

7 0

3 years ago

Product codes of 2, 3, 4, 5, or 6 letters are equally likely. What is the mean and variance of the number of letters in the code

ss7ja [257]

Answer:

$Mean = 4$

$Var = \frac{25}{12}$

Step-by-step explanation:

Given

Codes: 2,3,4,5,6

Required

Determine the Mean and Variance

Equally likely implies that the data follows a uniform distribution.

So,

$Mean = \frac{a+b}{2}$

Where

$a = Lower\ Bound = 2$

$b = Upper\ Bound = 6$

$Mean = \frac{a+b}{2}$

$Mean = \frac{2 + 6}{2}$

$Mean = \frac{8}{2}$

$Mean = 4$

Variance of a uniform distribution is calculated as thus;

$Var = \frac{(b-a+1)^2}{12}$

Substitute values for a and b

$Var = \frac{(6-2+1)^2}{12}$

$Var = \frac{5^2}{12}$

$Var = \frac{25}{12}$

7 0

3 years ago