HELP ME ASAP I WILL GIVE BRAINIEST TO THE FIRST THAT IS CORRECT

Mathematics

1 answer:

Rudiy272 years ago

4 0

Answer:

13.7 miles

Step-by-step explanation:

If you make 6 1/3 into 6.3 and subtract that from 20, you will get 13.7 miles.

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The distances traveled by car A car Afx x hours. are. represented by the graph and table below.<br>

jarptica [38.1K]

Answer: b

Step-by-step explanation:

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2 years ago

Explain and demonstrate the multiplication of complex conjugates using 2+3i and its complex conjugate. Be sure to discuss all st

krok68 [10]

The product of a <em>complex</em> number and its conjugate is (a + i b) · (a - i b), where a and b are <em>real</em> numbers, and the result for the <em>complex</em> number 2 + i 3 is 13.

<h3>What is the multiplication of a complex number and its conjugate</h3>

Let be a <em>complex</em> number a + i b, whose conjugate is a - i b. Where a and b are <em>real</em> numbers. The product of these two numbers is:

(a + i b) · (a - i b)

Then, we proceed to obtain the result by some algebraic handling:

a · (a + i b) + (- i b) · (a + i b)

a² + i a · b - i a · b - i² b²

a² - i² b²

a² + b²

If we know that a = 2 and b = 3, then the product of the complex number and its conjugate is:

$z\cdot \bar z = 2^{2} + 3^{2}$

$z\cdot \bar z = 13$

To learn more on complex numbers: brainly.com/question/10251853

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1 year ago

Which two points satisfy y = -x2 2x 4 and x y = 4?

matrenka [14]

I will assume that the two equations are

1) y = -x^2 +2x + 4 and 2) x +y = 4

subtract 2 from 1 and you get

y -x - y = -x^2 + 2x + 4 - 4

-x = -x^2 +2x

x^2 -x -2x = 0

x^2 - 3x = 0

x(x-3)=0

x=0 and x - 3 =0

x=0 and x = 3

Then y = 4 - x

y = 4 - 0 and y = 4 -3
y = 4 and y =1

Solutions:

Points (0,4) and (3,1)

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3 years ago

What is the simple interest that is missing from the table? Use the formula mc012-1.jp

Sphinxa [80]

The simple interest is $24.75.

<h3>What is the simple interest?</h3>

The simple interest that is paid on an amount of money is a function of the amount deposited, time and interest rate.

Simple interest = amount deposited x time x interest rate

$375 x 0.022 x 3 = $24.75

To learn more about simple interest, please check: brainly.com/question/27328409

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