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3 years ago

Chapter 2 Test, Form 2

Mathematics

2 answers:

Softa [21]3 years ago

8 0

1.) -49

2.) 24

3.) 27

4.) 28

5.) 15

Kamila [148]3 years ago

5 0

1.) -49
2.) 24
3.) 27
4.) -4
5.) 15

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7(2x+6)=1 plzzz Yelp

Ierofanga [76]

Answer:

$x=-\dfrac{41}{14}$

Step-by-step explanation:

$7(2x+6)=1$

Expand parentheses:

$14x+42=1$

Subtract 42 from both sides:

$14x=-41$

Divide both sides by 14:

$x=-\dfrac{41}{14}$

Hope this helps!

4 0

3 years ago

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PLSSSSSSSSSSSSSSSSSSSSSS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

fgiga [73]

Answer:

17925

Step-by-step explanation:

3(1/4)=3.25

simple interest formula:

PV(1+it)=FV

we will divide the 72 months to convert it into years

72/12=6

15000(1+.0325*6)=17925

7 0

3 years ago

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What is the sign of the product (3)(-3)(-2)(4)? (5 points) Select one: a. Positive, because the products (3)(-3) and (-2)(4) are

Gnesinka [82]

Answer: a. Positive, because the products (3)(-3) and (-2)(4) are negative, and the product of two negative numbers is positive

Step-by-step explanation: It is also possible to rearrange the factors.

(3)(4) = 12 a positive number.

(-3)(-2) = 6, a positive number. Again "a negative times a negative is a positive" --Jaime Escalante, Stand and Deliver

Now you have two positive numbers: 12×6 = 72

The product is positive either way.

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3 years ago

Mr. Brown chooses a fiction book at random from a list of books and then chooses a second fiction book from those remaining.

fgiga [73]

Independent would be when Mr. Brown chooses a fiction boom at random from a list of books.

Dependent would be when Mr.Brown then chooses a second fiction. book from those remaining.

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3 years ago

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Mr. and Mrs. Nelson are going to build a new home. They need to have working drawings of their house plans created by a design f

matrenka [14]

Answer:

Options 2), 4), and 5) are correct

Step-by-step explanation:

Rock the House Digital Designs

Cost = $(500 + 50h)

Elegant Home Architects

Cost = $(75h)

===========================

Answer options:

1)The expression 50h represents the total charge for Rock the House Digital Designs.

Incorrect. Additional $500 charged.

2)The expression 75h represents the total charge for Elegance Home Architects.

Correct

3)The expression 500 + 75h + 50h represents the total amount the Nelsons will spend working drawings of their new house plans.

Incorrect. They will choose one of the options.

4)If the Nelsons hire the design firm for 15 hours, then Elegance Home Architects will be cheaper.

Correct. It will cost 15*75 = $1125. Alternative costs 500 + 50*15 = $1250

5)If the Nelsons hire the design firm for 25 hours, then Rock the House Digital Designs will be cheaper.

Correct. It will cost 500+25*50 = $1750. Alternative cost is 25*75 = $1875

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4 years ago