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attashe74 [19]
3 years ago
6

Statements :

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

"e^x is irrational for every nonzero integer x"

Step-by-step explanation:

The original statement is

"e^x is rational for some nonzero integer x."

The negation is technically:

"It is NOT true that e^x is rational for some nonzero integer x."

So it's expressing that it's false that e^x can be rational for some nonzero integer x.

This just means that e^x is always irrational when x is a nonzero integer.

Which can be worded as

"e^x is irrational for every nonzero integer x"

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Answer is A. no x-intercept
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Camilla and Anne work as interior decorators in the city. Camilla can decorate a home in 5 days while Anne can
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Answer:

It will take them 4.44 days to decorate 2 homes.

Step-by-step explanation:

Given that:

Camilla can decorate a home in 5 days

Anne can complete a home in 4 days

Let,

x be the time taken by Camilla and Anne to decorate 1 home.

\frac{1}{Camilla's time}+\frac{1}{Anne's\ time} = \frac{1}{total\ time}\\

\frac{1}{5}+\frac{1}{4}=\frac{1}{x}

Taking LCM;

\frac{4+5}{20}=\frac{1}{x}\\\\\frac{9}{20}=\frac{1}{x}\\x=\frac{20}{9}

Time taken by Camilla and Anne to decorate 2 homes = \frac{20}{9}*2=\frac{40}{9}

Time taken to decorate Camilla and Anne 2 homes = 4.44 days

Hence,

It will take them 4.44 days to decorate 2 homes.

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3 years ago
Three students performed a science experiment using salt and a beaker. The beaker contained 530.2 grams of salt before the exper
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Answer:

530.2-47.36=482.84

Step-by-step explanation:

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3 years ago
Given the exponential function <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%209%283%29%5Ex" id="TexFormula1" title="f(x) = 9
RSB [31]

Answer:

f(-1) = 3

General Formulas and Concepts;

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 9(3)ˣ

x = -1

<u>Step 2: Solve</u>

  1. Substitute:                    f(-1) = 9(3)⁻¹
  2. Evaluate:                       f(-1) = 9(1/3)
  3. Multiply:                        f(-1) = 9/3
  4. Divide:                           f(-1) = 3
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Farmer Brown planted corn and wheat on his 1210 acres of land. The cost of planting and harvesting corn (which includes seed, pl
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Answer:

620

Step-by-step explanation:

260400/(140+280)=620

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