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ivolga24 [154]
3 years ago
13

A solid object with an initial temperature of 75 degrees Fahrenheit is dropped into a lake with a temperature of 33 degrees Fahr

enheit. The function f(t)=Ce(−kt)+33 represents the situation, where t is time in minutes, C is a constant, and k is a constant.
After 2 minutes the object has a temperature of 55 degrees. What will be the temperature of the object, in degrees Fahrenheit, after 4 minutes? Round your answer to the nearest tenth, and do not include units.
Mathematics
2 answers:
garik1379 [7]3 years ago
4 0

Answer:44.5

Step-by-step explanation:

I had the same question

pantera1 [17]3 years ago
4 0

Answer: 44.5

Step-by-step explanation:

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In the given figure, identify a pair of perpendicular lines.
nexus9112 [7]

Answer:

A

Step-by-step explanation:

The two lines cross the others path to form a right angle.

7 0
3 years ago
A line has a slope of 5 and passes through the point (0,9). What is its equation in
kolbaska11 [484]

Answer:

y=5x+9

Step-by-step explanation:

Firstly, we have to use the equation y=mx+b, where m is the slope and b is the y intercept.

We know that m=5, x=0 and y=9.

So why not plug them into the equation to find b?

9=5(0)+b

9=0+b

9=b

Therefore, y=5x+9 is your final answer.

7 0
3 years ago
2x-8y=0 and -2x+4y=-8
timama [110]
I’m assuming you want to know the values of x and y. If so x=8 and y=2
6 0
3 years ago
Help asap please due tomorrow
Gala2k [10]

Answer:

The first one is 15.75 lbs or 15 3/4. The second one is 28 years old. The third one is$9.90 each t-shirt

Step-by-step explanation:

For the first one you multiply 18 by 14 and you get 252. Then there is 16 ounces in a pound so you divide by 16. Then you get 15.75. So that is your answer. The 2nd one you take 84 and multiply it by 1/6 then since she is twice the age of her sister you multiply by 2. so it would look like: 84 times 1/6= 14

14 times 2 = 28. So she is 28 years old. The third one you take 32 and subtract it by 12.20. You will be left with 19.8. Then both t-shirts cost the same so you would divide 19.8 by 2. You are left with 9.9. So the answer is $9.90. Sorry this took 10 minutes.

3 0
3 years ago
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Answer:

B : 850

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8 0
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