3 years ago

I need some help with these questions

Mathematics

1 answer:

Ymorist [56]3 years ago

7 0

The Answer is 8. B 18 is D

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(10x+5y)(x-6y) in the simplest form

noname [10]

Answer:

10 $x^{2}$ -55xy-30 $y^{2}$

Step-by-step explanation:

8 0

3 years ago

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Cheddar cheese costs $4.50 per pound at the deli counter. Which equation best represents y, the total cost of x pounds of chedda

NISA [10]

Answer:

4.50x=y

Step-by-step explanation:

6 0

3 years ago

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Assume that price is an integer variable whose value is the price (in US currency) in cents of an item. Assuming the item is pai

cestrela7 [59]

Answer:

$Change = (Paid*100) - Price$

Step-by-step explanation:

First of all we need to know the relation between 1 dollar and 1 cent in order to express everything in the units required in the question.

We know that $1 dollar = 100 cents$ , so the amount paid for the item with single dollars has to be multiplied by 100 to express its value in cents.

$Paid_{cents}=Paid_{dollars}*100$

Now that we have everything in cents, we can make the subtraction:

$Change_{cents} = Paid_{cents} -Price_{cents}$

Replacing the value in cents we get:

$Change = (Paid*100) - Price$

4 0

3 years ago

List the following parabolas from widest to narrowest (would like a fast answer)

Nostrana [21]

Answer:

Step-by-step explanation:

The greater the magnitude of the leading coefficient, the narrower the parabola.

Widest: f(x) = 0.5x²

Next: f(x) = -x²

Next: f(x) = 2x²

Narrowest: 3x²

5 0

3 years ago

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A circle with radius of 6 cm sits inside a circle with radius of 9 cm. What is

laiz [17]

Answer:

area of Circle = (pi)r^2

3.14×4

12.56

7 0

2 years ago