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a_sh-v [17]
2 years ago
15

Please help me

Mathematics
1 answer:
madreJ [45]2 years ago
7 0
143.44 degrees
Hope this helps (:
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A lake near the Arctic Circle is covered by a 222-meter-thick sheet of ice during the cold winter months. When spring arrives, t
STatiana [176]

Answer:

S(t) = 2 - 0.25*t

Step-by-step explanation:

A lake near the Arctic Circle is covered by a 2-meter-thick sheet of ice during the cold winter months.

When spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate.

S(t) denote the ice sheet's thickness S ( measured in meters) as a function of time (measured in weeks).

Therefore the equation formed will be linear.

The equation will be of the form y = mx + b

Here S(t) = mt + b

Here m is the slope which is the rate at which ice is melting.

Putting t = 0

S(t) = 2

Putting t = 3,

S(t) = 1.25

Therefore, m*0 + b = 2 or, b = 2

and 3m + b = 1.25

or, 3m = 1.25 - 2 = -0.75

or, t = -0.25

Hence, function's formula = S(t) = -0.25*t + 2

i.e. S(t) = 2 - 0.25*t

5 0
3 years ago
Marie needed to by some dog food for her five dogs.Each pound of dog food cost $5.17.Marie brought 9.5 pounds of dog food.How mu
Yanka [14]
She paid $49.12

If one pound is 5.17 dollars
You would have to multiply the two given numbers
7 0
3 years ago
Read 2 more answers
Will mark Brainly!!! 20 points!!!!
Mumz [18]

Answer:

= 4

Step-by-step explanation:

sqrt 15 = 3.872

to approximate to the nearest whole number (integer), you take the first decimal number which is 8, since 8 is greater than 5, you will add one(1) to the whole number which is 3 to make it 4.

5 0
3 years ago
State whether set of ordered pairs represent a function
antoniya [11.8K]

<u>Answer:</u>

No, the given set of pairs does not represent a function

<u>Step-by-step explanation:</u>

For a set of values to be a function, each input must have one and only one output value

Now, for the given set, we can note that:

The input -13 has two output values; 4 and 9

<u>Therefore</u>, this set is not a function

Hope this helps :)

3 0
3 years ago
In the united states the speed limit signs are in Miles per hour. Unfortunately, your speedometer only reads in km/hour. How man
ohaa [14]

Hello,

1mph = 1.60934kph

70 x 1.60934 = 112.6538

Answer:

70mph = 112.6538kph

8 0
3 years ago
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