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White raven [17]

2 years ago

6

Katie buys 4 packages of cookies for $16. In each package of cookies there are 2 cookies. How much does it cost Katie for one co

okie?

1 answer:

AlekseyPX2 years ago

8 0

Answer:

$2 each cookie

Step-by-step explanation:

4 divided by 16

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Sara is shopping for jeans and shirts on tax-free weekend. She has $60 to spend. She knows she will buy one pair of jeans for $2

Neko [114]

Answer:29x+10y<60

Step-by-step explanation:

She has $60 to spend.

And no tax. it should be 29x+10y>(less than or equal to) $60.

6 0

2 years ago

1) A part of an expression separated by addition, subtraction, or an equality symbol is a

Oksanka [162]

Algebraic expression

8 0

3 years ago

Please help me answer this question

ratelena [41]

By the definition of the hyperbolic function tanh x, we have proven that $\frac{1-tanh \ x}{1 + tanh \ x}=e^{-2x}$

<h3>Hyperbolic functions & Proof of identities </h3>

By definition

$tanh \ x=\frac{e^{x} -e^{-x}}{e^{x} +e^{-x}}$

Then,

$\frac{1-tanh \ x}{1 + tanh \ x}=\frac{1-\frac{e^{x} -e^{-x}}{e^{x} +e^{-x}} }{1+ \frac{e^{x} -e^{-x}}{e^{x} +e^{-x}} }$

$=1-\frac{e^{x} -e^{-x}}{e^{x} +e^{-x}} \div (1+ \frac{e^{x} -e^{-x}}{e^{x} +e^{-x}} })$

$=\frac{e^{x} +e^{-x}-(e^{x} -e^{-x})}{e^{x} +e^{-x}} \div (\frac{e^{x} +e^{-x}+e^{x} -e^{-x}}{e^{x} +e^{-x}} })$

$=\frac{e^{x} +e^{-x}-e^{x} +e^{-x}}{e^{x} +e^{-x}} \div \frac{e^{x} +e^{-x}+e^{x} -e^{-x}}{e^{x} +e^{-x}} }$

$=\frac{e^{-x}+e^{-x}}{e^{x} +e^{-x}} \div \frac{e^{x} +e^{x} }{e^{x} +e^{-x}} }$

$=\frac{2e^{-x}}{e^{x} +e^{-x}} \div \frac{2e^{x} }{e^{x} +e^{-x}} }$

$=\frac{2e^{-x}}{e^{x} +e^{-x}} \times \frac{e^{x} +e^{-x}}{2e^{x}}$

$=\frac{2e^{-x}}{1} \times \frac{1}{2e^{x}}$

$=\frac{2e^{-x}}{2e^{x}}$

$=\frac{e^{-x}}{e^{x}}$
$=e^{-x} \times \frac{1}{e^{x}}$

$= e^{-x} \times e^{-x}$

$= e^{-x+-x}$

$= e^{-x-x}$

$= e^{-2x}$

Hence, we have proven that $\frac{1-tanh \ x}{1 + tanh \ x}=e^{-2x}$

Learn more on Proof of Identities here: brainly.com/question/2561079

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6 0

2 years ago

2x2-1/3x2+7/3x2 plzzzzzzzzzzzz fast

Eva8 [605]

Answer:

8

Step-by-step explanation:

8 is the correct answer

3 0

3 years ago

Read 2 more answers

The function c(p)=6⋅2p−1 represents the number of circles on page p in an artist’s book.

Leno4ka [110]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
I think the answer is <span>C) The number of circles on a page is 6 times the number of circles on the previous page.

</span>If we plugged in p = 1, then it leads to c(p) = 6

This is saying "on page 1 (p = 1), the number of circles on this page is 6"

<span>ie, "There are 6 circles on page 1"</span><span>

</span>

6 0

3 years ago

Read 2 more answers