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Gnesinka [82]
3 years ago
5

A fire has started in a dry, open field and is burning in a circular area with an initial radius of 3 feet. The radius

Mathematics
1 answer:
Lerok [7]3 years ago
8 0

Answer:

  g(t) = 2t+3

Step-by-step explanation:

You want a definition of g(t) so you can write the equation ...

  r = g(t) . . . . . . radius is a function of time

We are told the radius at t=0 is 3, so the third choice is the obvious one:

  g(t) = 2t +3 . . . . . radius t seconds after the radius began increasing

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A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 8 inches, a width of 3 inches, and a h
ad-work [718]

Answer:

147 in2

Step-by-step explanation:

(Assuming the height is 4 1/2 inches = 4.5 inches)

We need to calculate the area of all six faces of the prism

Two faces have the sides 8 and 3, which area is 8*3 = 24 in2

two other faces have the sides 8 and 4.5, which area is 8*4.5 = 36 in2

the two last faces have the sides 3 and 4.5, which area is 3*4.5 = 13.5 in2

So, summing up all the areas, we have:

24 + 24 + 36 + 36 + 13.5 + 13.5 = 147 in2

5 0
3 years ago
Can you solve this problem? Help I need it fast and could you tell me how to do it? Thank you!
bixtya [17]
So for me, how I would do it is move the variables and numbers to one side. So we have the equation 3x-3=2/5x+7. So you would subtract 2/5x to the left side and add 3 to the right side. The equation will then turn out to be 3x-2/5x=7+3. Much more easier right? So just simplify both side, and you will get 13/5x=10. In order to isolate x, you have to divide 13/5 in both side, leaving x= 3 11/13 or 50/13. You can always plug the answer back in to double check :)
5 0
3 years ago
What is the slope-intercept form of the equation of the line that passes through the points (9,5) and (4,1)
Komok [63]
Y-y1 / x-x1 to get slope
5 - 1 / 9 - 4
m (slope) = 4/5
plug in one point to get b
1 = 4/5(4) + b
1 = 16/5 + b
b = -15/5
y = 4/5x - 15/5
4 0
3 years ago
Please help me with this I need it asap ! Find the surface area
sergij07 [2.7K]

Answer:

62

Step-by-step explanation:

5 * 3 * 2 = 30

3 * 2 * 2 = 12

5 * 2 * 2 = 20

30 + 12 + 20 = 62

3 0
3 years ago
Jen sells a laptop for $1,200, which represents a 20% increase from the price she payed for the laptop. What is the original pri
aalyn [17]

Answer:

960

Step-by-step explanation:

1200 is the total price that she sold it for, that is the 100%

the 20% of 1200 is 240

so 1200-240 = 960

8 0
3 years ago
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