Suppose you make coffee and it starts off just too hot to drink, so you put it in the refrigerator temporarily to cool it off. If the original temperature is 190 degrees Fahrenheit and the refrigerator is 36 degrees Fahrenheit, what will the temperature of the coffee be after 3 minutes? (k = 0.12)

Answers

Answer 1

Answer:

Step-by-step explanation:

f(x)= 36( 1 - 0.12)^x. F(x)= 36(0.88)^3. f(x)= 95.04    190-95.05 = 94.95 degree.

Because the temperature is going down, we will use (1-0.12) instead of (1+0.12). X=3 because it is what temperature after 3 min. x= time.

I don't understand the question that well, but please don't report me. I will fix it if I can.


Related Questions

Write an equation in point-slope form of the line through point J(9,-8) with slope 2. y + 8 = 2(x 9) b. y + 8 = 2(3-9) 1 + 8 = 2(x +9) d. 1 - 8 = 2(x + 9)​

Answers

Answer:

y +8= 2(x-9)

Step-by-step explanation:

can I get help pls :')​

Answers

Answer:

1.a: 6x = y

1.b: 7 packs

Step-by-step explanation:

1.a: there are 6 cups per can so if you multiply it for each can, you get the cups.

1.b: there are 16 cups per gallon. Packs of 4 cans so in total, there are 24 cups in total. So there are 1.5 gallons per pack. 1.5x6 = 90 so that's no enough. 1.5x7 = 10.5. That's more than enough but she can't split the pack so she needs to buy 7 packs.

Miles read 4 books in the first half of March. By the end of March, the library had added Miles to the top-readers board for reading more than 10 books in a month.Let x represent how many books Miles read in the second half of March. Which inequality describes the problem?

Answers

Answer:

[tex]x>6[/tex]

Here, [tex]x[/tex] denotes number of books read by Miles in the second half of March

Step-by-step explanation:

Given: Miles read 4 books in the first half of March.

Also, Miles read more than 10 books in a month.

[tex]x[/tex] denotes number of books read by Miles in the second half of March.

To find: inequality that describes the problem.

Solution:

Total number of books read in month of March = Number of books read by Miles in the first half of March + Number of books read by Miles in the second half of March =  [tex]4+x[/tex]

Also, Miles read more than 10 books in a month.

Therefore,

[tex]4+x>10\\x>10-4\\x>6[/tex]

A cake has two layers. Each layer
is a regular hexagonal prism. A slice removes one face of
each prism, as shown.
a. What is the volume of the slice?
b. What is the volume of the remaining cake?

Answers

Answer:

Volume of slice is  40 in³

Volume of the remaining cake is 197.014 in³

Step-by-step explanation:

hope this helps!!

brainliest please?

FIND THE AREA (LEAVE EXPLANATION)

Answers

Answer:

20 yd²

Step-by-step explanation:

lets do the big one

4 x (6-2) = 4 x 4 = 16 yd²

2 x (4-2) = 2x2 = 4 yd²

16 yd² + 4 yd² = 20 yd²

Another way

Find the area of the figure if it was a rectangle

4 x 6 = 24 yd²

then subtract 2 x 2 = 24 yd² - 4 yd² = 20 yd²

Answer:

20

Step-by-step explanation:

Solve the area of the squares separately, then add. the small square has a length and width of 2, and 2x2 is 4, so that area is 4. the bigger one has a length and width of 4, and 4x4 is 16, and then we add the two values together, and 16+4 is 20, so the total area is 20.

Please help me please please

Answers

The answer is letter C

answer correctly for brainliest

Answers

Answer:

x=3

Step-by-step explanation:

When you substitute x = 3 to both equations, you get y = -4 for both so that is a solution

Sawyer was last year's PI Day
champion. He is feeling
confident this year with his
chocolate silk ple. One recipe
calls for 16.8 grams of semi
sweet chocolate. Sawyer only
uses premium. Imported Belgian
chocolate, so each gram costs
him $472. How much did he pay
for the chocolate? Round to the
nearest hundredth If
necessary

Answers

7,929.60 . i think :D

circumference of a car tire is 113.1 inches find the diameter of the tire. find the diameter of the tire to the nearest tenth of an inch

Answers

Answer:

36

Step-by-step explanation:

Answer:

diameter = 36 inches

Step-by-step explanation:

diameter = circumference / π

diameter = 113.1/3.14 = 36 inches

Need help with this trigonometry word problem
From the top of the tower 30 m height a man is observing the base of a tree at an angle of depression measuring 30 degree. Find the distance between the tree and the tower.
Please show your work

Answers

Answer:

  30√3 m ≈ 52 m

Step-by-step explanation:

The side ratios in a 30°-60°-90° triangle are 1 : √3 : 2. The long leg of the triangle is √3 times 30 m, or about 51.96 m.

The distance between the tree and the tower is about 30√3 m ≈ 52 m.

__

If you haven't memorized the ratios of this special triangle, you can use the relation ...

  Tan = Opposite/Adjacent

  tan(30°) = 30/d

  d = 30/tan(30°) = 30√3 = 51.96 . . . . same as above

If 20 articles cost ? 90, then the cost of 9 articles is ?

Answers

9 articles would cost you around $40.5 because you would devide 90 by 20 and u get 4.5 then u multiple it by 9 and it gives u 40.5

Answer:

40.50

Step-by-step explanation:

1. 90 ÷ 20 = 4.50

2. 4.50 × 9 = 40.50

What is the value of f(-3) when f(x)=5(2)

Answers

Answer:

a) 5/8

Step-by-step explanation:

f(-3) when f(x)=5(2)^x just replace the x with -3

f(x)=5(2)^x = 5 (2)^-3 we find the 3rd power of 2 first which means multiply 2 with itself 3 times

2×2×2 = 8 but here, it asks us for negative third power of 2 so we turn the 8 upside down :

if 2^3 = 8 then 2^-3 = 1/8 and now we multiply it with 5

5 × 1/8 = 5/8

One scoop of ice cream weighs
about 3 ounces. Last Thursday the
ice-cream parlor used 18 pounds of
ice cream. About how many scoops of
ice cream were served last Thursday?

Answers

Answer:

96 scoops

Step-by-step explanation:

First, Convert 18 pounds to ounces and that is 288 ounces

Next, Divide 288/3=96

Need help with answers

Answers

Bro do that u r self ahahahahaha jk butbits too much

Subject:Mathematics ​

Answers

Answer:

true sorry if wrong im not the best at this type of math but im average

Step-by-step explanation:

Solve for c, giving brainliest. please show your work/explain, i got to the point of square rooting 185, but i don't understand where to go from there if it cannot be simplified. Thanks.

Answers

Answer:

13.6 in (mrs clark)

Step-by-step explanation:

a²+b²=c²

16 + 169 = c²

c² = 185

c ≈ 13.6

Need this !!!! Badly

Answers

Answer:

78

Step-by-step explanation:

need help on my geomrty homework

Answers

The first one is the correct answer

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

You like to lift weights!!!!

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

the elevator at an old hotel has a weight limit of 1200 pounds. Assume the average person weighs 150 pounds and has a 10 pound luggage. What is the greatest amount of people that can ride the elevator at the same time

A: 7 people
B: 9 people
C: 11 people
D: 13 people​

Answers

the answer would be b

What is 1/2 to the power of 5??

Answers

Answer:

1/32

Step-by-step explanation:

Which statements about the graphs of functions g(x) = −1/4x^2 and f(x) = x2 are true? Select all that apply.
A. g is wider than f.
B. f and g open in the same direction.
C. f and g have the same vertex.
D. f and g have the same axis of symmetry.

Answers

Answer: c and d

Step-by-step explanation:

A function assigns the values. The correct options are A, C, and D.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

The statements that are true about the two functions g(x)=(−1/4)x² and f(x)=x² are,

A. g is wider than f.

C. f and g have the same vertex.

D. f and g have the same axis of symmetry.

Hence, the correct options are A, C, and D.

Learn more about Function:

https://brainly.com/question/5245372

#SPJ2

for the system {3x-2y=4, 4x-3y=7,
which is the solution to the system?
A. (-2, -5)
B.(2, -5)
C.(-2,5)
D. (2,5)

Answers

Answer:

x=-2 y=-5

Step-by-step explanation:

Solve the equation. -3x+2x=8​

Answers

Answer:

= − 8

Step-by-step explanation:

Combine like terms  

Divide both sides of the equation by the same term

Simplify

.
Sydney has a points card for a movie theater,
She receives 35 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater,
She needs at least 90 points for a free movie ticket.
Which inequality can be used to determine w, the minimum number of visits Sydney
needs to earn her first free movie ticket?

Answers

Answer:

35+5.5w>90

Step-by-step explanation:

35+5.5x>90

it would be this sign > but with a line under it..the amount of points she racks up can be greater or equal to 90

             

Work out the volume of this cylinder? 12m height and 5m radius

Answers

Answer:

942m³

Step-by-step explanation:

π×radius²×height

π×5²×12=942.4777961m²

to 3sf it's

942m³

3 significant figures is 3 numbers.

Question :-

What is the volume of a cylinder with a radius of 5 m and a height of 12 m?

Answer :-

The volume of a cylinder is 942 m³.

[tex] \rule{180pt}{4pt}[/tex]

Diagram :-

[tex]\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{5 \: m}}\put(9,17.5){\sf{12 \: m}}\end{picture}[/tex]

Solution :-

As per provided information in the given question, we have been given that the Radius of a cylinder is 5 meters. The height of a cylinder is 12 meters. We have been asked to find the volume of a cylinder.

To calculate the volume of a cylinder, we will apply the formula below :-

[tex] \bigstar \: \: \: \boxed{ \sf{ \: \: Volume_{(Cylinder)} = \pi r^2 h \: \: }}[/tex]

Substitute the given values into the above formula and solve for Volume :-

[tex]\sf:\implies Volume_{(Cylinder)} = \pi r^2 h[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(5 \: m)^2(12 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(25 \:m^2)(12 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (78.5 \:m^2)(12 \:m)[/tex]

[tex]\sf:\implies\bold{Volume_{(Cylinder)} = 942 \: m^3}[/tex]

Therefore :-

The volume of a cylinder is 942 m³.

[tex]\\[/tex]

Learn more about the Volume of a Cylinder at https://brainly.com/question/15197979

Have a great day! <33

Last question on my assignment need help. Find x.

Answers

Answer:

I think it would be 20 hope it helps and good luck

Step-by-step explanation:

Answer:

i think its at 21

Step-by-step explanation:

R15,50 for 5kg , how much for 1 kg​

Answers

Answer and Step-by-step explanation:

Divide both numbers by 5kg to know how much R is for 1 kg.

[tex]\frac{15.50}{5}[/tex] = 3.1.

It is 3.1 for 1 kg.

#teamtrees #PAW (Plant And Water)

8 + (7 + 1)2 + 4
Can you help me find the answer to this one.

Answers

Answer:

28

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

8+(7+1)2+4=

8+(8)×2+4=

8+16+4=

28

ps:Can I be brainliest.Have a nice day.Best regards

7a + b - 12 wich is the coefficient?

Answers

coefficient = 7 and 1
7 is the coefficient of a
1 is the coefficient of b
The coefficient is 7

Help...please I need this fast

Answers

Answer:

sorry I'm not the best with math and sorry if I just waisted your time... :)

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