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3 years ago

NOW PLS ITS IN CLASS RN HELP AHH PRE-PRE ALGEBRA

Mathematics

2 answers:

V125BC [204]3 years ago

8 0

Answer:

A) -13, -7, -3, 0, 3 B) -100, -99, -8, -25/3, -2

Step-by-step explanation:

3)Ordered from least to greatest is: -13, -7, -3, 0, 3

(The higher the negative the "smaller" it is)

4) -100, -99, -8, -25/3, -2

These numbers are listed in order from least to greatest with the error being -25/3. This equals -8.333 and should be in front of the -8 because it is a lesser value. The correct order would be: -100, -99, -25/3, -8, -2 but your answer asks for one error so use the numbers above.

Yuliya22 [10]3 years ago

4 0

Answer:

-13,-7,-3,0,3

-9,-4,-6,3,8

Step-by-step explanation:

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kenny6666 [7]

Step-by-step explanation:

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3 years ago

Find the percentage increase from 30 to 39

krok68 [10]

Answer:

%130 percent increase

Step-by-step explanation:

To find the percentage, divide 39 by 30. This gives you the number that is multiplied with 30 to get 39. The answer is 1.3. Then, convert to a percentage by moving the decimal two places to the right. This gives you %130.

I hope this helps :)

8 0

3 years ago

If the area of Bianca’s rectangular backyard patio is represented by the expression x2 – 18x + 81, and the length of the patio i

Verizon [17]

<u>1) </u> $width=x-9$

2) Rectangular shape is square shape patio !

<u>Step-by-step explanation:</u>

Here we have , the area of Bianca’s rectangular backyard patio is represented by the expression x2 – 18x + 81, and the length of the patio is represented by the expression x − 9: We need to find

1. what is the expression for the width of the patio? Explain and show all work.

We know that area of rectangle = $Length(width)$

⇒ $x^2-18x+81=(x-9)(width)$

Factorizing RHS:

⇒ $x^2-9x-9x+81=(x-9)(width)$

⇒ $x(x-9)-9(x-9)=(x-9)(width)$

⇒ $(x-9)(x-9)=(x-9)(width)$

⇒ $width=x-9$

2. what special rectangular shape is the patio?

Now , we see that

$Length = x-9\\Width=x-9$

A rectangle whose length & width are equal is known as a square ! Hence , Rectangular shape is square shape patio !

8 0

3 years ago

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour. Which equation represents how many grams of the

Dahasolnce [82]

The exponential equation that represents how many grams of the compound will remain after 8 hours is:

B: C=260(0.962)^8

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour, hence the equation for the mass after t hours is given by:

$A(t) = 260(1 - 0.038)^t$