4 years ago

Question 3 Unsaved

1 answer:

7 0

The degree is indicated by the highest exponent in the polynomial. That degree is a 2. And since we have only 1 term in this "polynomial", it is then a second degree monomial. Third choice down.

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Seema used compatible numbers to estimate the product of (–25.31)(9.61). What was her estimate?

zepelin [54]

If she used rounding properly, she would have gotten -25 x 10 = -250

8 0

3 years ago

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Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).

Alona [7]

Answer:

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

Step-by-step explanation:

Given

Shape: Cube

Dimension: (x+7y), (7x-y) and (xy-5).

Required

Determine the volume

The volume is calculated by multiplying the dimensions:

$Volume = (x+7y) * (7x-y) * (xy-5)$

Evaluate the first 2 brackets

$Volume = [x(7x-y)+7y(7x-y)] * (xy-5)$

$Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)$

$Volume = [7x^2-xy+49xy-7y^2] * (xy-5)$

$Volume = [7x^2+48xy-7y^2] * (xy-5)$

Open brackets

$Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2]$

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

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3 years ago

After five games a football team's goal average is 2.8. After one more game the goal average is 3. The number of goals scored in

Svetlanka [38]

Answer:

4 goals

Step-by-step explanation:

Let:

x = number of total goals scored in first 5 games

y = answer = number of goals in 6th game

formula:

average = sum of individual parts / total number of parts

average_5_games = x / 5 = 2.8

solve for x:

x = 2.8 × 5 = 14

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solve for y:

x + y = 6 × 3 = 18

y = 18 - x = 18 - 14 = 4

4 0

3 years ago

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What is numerical coefficient of this term?<br> -3z

zalisa [80]

-3 because if you take apart your number then you get -3 and z.

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3 years ago

740,000= ten thousands

erastova [34]

= 40 ten thousands .

8 0

4 years ago