The length of a rectangular room is 7.9m and it's width is 8.6m. Find the area of the room.

Answers

Answer 1

Answer: Length x Width=Area
Multiply
8.6 x 7.9= 67.94cm^2

Answer 2

Answer: $Formula = Length * Width=Area$

$8.6 * 7.9= 67.94cm^2$

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Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are (8, 5) and (–12, –9). He writes the equation 7x – 10y = 3. Is this a good model? Explain your reasoning.

Answers

For this case we have the following equation:
$7x - 10y = 3$
From here, we must substitute ordered pairs of the form:
(x, y)
If the ordered pair satisfies the equation, then it belongs to the line.
We have then:

For (8, 5):
We substitute the following values:
$x = 8 y = 5 7 (8) - 10 (5) = 3 56 - 50 = 3 6 = 3$
We observe that the equation is not satisfied and therefore, this point does not belong to the line.
Since one of the points does not belong to the line, then the equation is not a good model.

Answer:
It is not a good model. One of the points does not belong to the line.

What is the equation in point-slope form of the line that passes through the point (5,-5) and is parallel to the line represented by y = -8x - 2?

Answers

Answer: y + 5 = -8 ( x - 5 )

Step-by-step explanation:

Find the following when a = -1, b = 2, c = -1/4
(4b - 3)/(2a) -1

Answers

Already asked question.
But anyways, see the attachment i have added below.
I have it typed there

Solve for x. 3(x + 5) - 2(x + 2) = 20

Answers

3(x + 5) - 2(x + 2) = 20
3x + 15 -2x - 4 = 20
x + 11 = 20
x = 20 -11
x = 9

The first five batters on a softball team’s lineup have the following numbers of hits for the season: 83, 71, 68, 62, 61. What is the mean number of hits for these five players?

Answers

Answer:

Step-by-step explanation:

83+71+68+62+61(players hits for the season)=345

345(total of numbers added)÷5(number of players)

69(average of players hits as a team)

Answer:

296.2

Step-by-step explanation:

I need some help with a Math question. I'm not sure how to work it out. All help appreciated.If a helicopter at 2000 meters begins to descend at 3 meter per second, how far is the helicopter from the ground after a minute and a half?

Answers

since there are 90 seconds in a minute and a half you multiply 90 by 2 getting 270 then you subtract 270 from 2000 and you get 1730 meters which is your answer hope this helps!

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