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3 years ago

What is this series written in sigma notation? 2.5 + 2.5(1.2) + 2.5(1.2)2 + ⋯ + 2.5(1.2)87

Mathematics

2 answers:

son4ous [18]3 years ago

4 0

Answer: Answer D

Step-by-step explanation:

dlinn [17]3 years ago

3 0

Answer:

The answer is D

Step-by-step explanation:

Believe me, dawg!

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Factor the expression over the complex numbers.<br><br><img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B18" id="TexFormula1

AleksAgata [21]

Here we are given the expression:

$x^{2}+18$

Now let us equate it to zero to find x first,

$x^{2}+18=0$

Now subtracting 18 from the other side,

$x^{2}=-18$

taking square root on both sides,

So we will get two values of x as ,

$x=3\sqrt{-2}$

$x=-3\sqrt{-2}$

Now we can write square root -1 as i,

So our factors become,

$x=3i\sqrt{2}$

$x=-3i\sqrt{2}$

Answer:

The final factored form becomes,

$(x+3i\sqrt{2})(x-3i\sqrt{2})$

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3 years ago

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Helpp i am really bad with math

Brut [27]

Answer:

1. 4y-12

2. c

For #1 you distribute the 4 to the y and the 3. 4 times 3 equals 12.

For #2 you factor out the 3 and you get 3(5x+1)

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3 years ago

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The length of an object is measured as 34.8 centimeters. What is this measurement in scientific notation?

harkovskaia [24]

Answer:

34.8 x 10 to the power of 0.

Step-by-step explanation:

hope this helps

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2 years ago

Please help me please !

Morgarella [4.7K]

Hi there!

»»————-　★　————-««

I believe your answer is:

Option C

»»————-　★　————-««

Here’s why:

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$\text{\underline{The Slope Formula Is:}}\\\\m=\frac{y_2-y_1}{x_2-x_1}\\\\(x_1,y_1)\text{ and } (x_2,y_2)\text{ are two points given.}\\\\\text{We are given the points: } (3,5) \text{ and } (9,2).\\\\\text{\underline{The formula for the points should be:}}\\\\m=\frac{5-2}{3-9}, \text{where } (9,2) \text{ is }(x_1,y_1)\text{ and } (3,5) \text{ is } (x_2,y_2).$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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3 years ago

Graph a line with a slope of.....

photoshop1234 [79]

Answer:

use google graph:)

Step-by-step explanation:

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