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3 years ago

PLEASE HELP ME!!!! PICTURE IS PROVIDED

Mathematics

1 answer:

sattari [20]3 years ago

6 0

Answer:

pretty sure C

Step-by-step explanation:

sorry if im incorrect information

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The infinite geometric series S=1+( 2/3 )+( 2/3 )^ 2 +( 2/3 )^ 3 .... equal to:

weqwewe [10]

SOLUTION

The question simply means that we should find the sum to infinity of the geometric series.

The formula of sum to infinity of a geometric serie is given by

$S_{\infty}=\frac{a}{1-r}$

Where

$\begin{gathered} S_{\infty}\text{ is the sum to infinity} \\ \\ a\text{ is the first term = 1} \\ \\ r\text{ is the common ratio = }\frac{2}{3} \end{gathered}$

So, this becomes

$\begin{gathered} S_{\infty}=\frac{a}{1-r} \\ \\ S_{\infty}=\frac{1}{1-\frac{2}{3}} \\ \\ S_{\infty}=\frac{1}{\frac{3-2}{3}} \\ \\ S_{\infty}=\frac{1}{\frac{1}{3}} \\ \\ S_{\infty}=3 \end{gathered}$

Therefore, option b is the correct answer

5 0

1 year ago

A bunch of 6 bananas costs $3.54. What is the unit rate?

mr_godi [17]

Divide 6 by 3.54
The quotient would be 1.69
Your answer is that the unit rate is $1.69 per banana

7 0

3 years ago

Which is equivalent to x(-14x + 9)?

victus00 [196]

SO YOU HAVE X(-14X+9). ALL YOU DO IS THE DISTRIBUTION PROPERY OR MULIPLE BY X

SO WE GET -14X^2+9X.

X(-14X+9)= -14X(*)X+9(*)X= -14X^2+9X

HOPE THIS HELPS

5 0

3 years ago

Pls I need help on this one

OlgaM077 [116]

Answer:

1.5 for half a batch and 1 and 0.16666666.. batch

Step-by-step explanation:

3 cups=1 batch so 3/2= 1.5 cups=1/2 batch

4 cups=1 and .1666 batches

5 0

3 years ago

This is a full assignment I’m struggling on if someone can answer them all and get most correct I will give you Brainliest for y

Effectus [21]

Answer:

Step-by-step explanation:

a) 1) Polynomial is closed under addition. In polynomial addition, only the coefficient change and variables and it powers does not change.

Example: Add 3x² - 2x + 7 and -2x² - 5x + 3

3x² - 2x + 7 - 2x² - 5x + 3 = 3x² -2x² - 2x - 5x + 7 + 3

= x² - 7x + 10

2)Polynomial is closed under addition. In polynomial subtraction, only the coefficient change and variables and it powers does not change.

Example: Subtract 3x - 2 from 4x + 2

4x + 2 - (3x - 2) = 4x + 2 - 3x + 2 = 7x + 4

3) Polynomial is closed under multiplication. In this, exponents of the variables are added according to the exponent rule. As the exponent of polynomials are whole numbers and whole numbers are closed under addition, the result will be a whole number.

-2x³ * 3x² = $-3*x^{3+2}=-3x^{5}$

4) Polynomial is not closed under multiplication. In division, we may get a negative exponent. So, it is not closed under division.

$\dfrac{x^{4}}{x^{9}}=x^{4-9}=x^{-5}\\\\x^{-5} \ is \ not \ a \ polynomial.$

Addition subtraction multiplication Division

Natural numbers yes not closed Yes Not closed

Integers Yes Yes Yes not closed

Rational numbers Yes Yes Yes not closed

Irrational numbers not closed not closed not closed not closed

5 0

2 years ago