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3 years ago

Read the following scenario, and then answer the question.

Mathematics

1 answer:

blsea [12.9K]3 years ago

6 0

9514 1404 393

Answer:

(b) He is correct. The tea will cool exponentially since it cools at a percentage rate every minute.

Step-by-step explanation:

Newton's Law of Cooling says the change in temperature is proportional to the temperature. This relation gives rise to an exponential function describing the temperature.

In this description, the temperature referred to is the <em>difference</em> between the temperature of the object and the temperature of the environment to/from which heat is being transferred.

Juan is only partially correct. The function is exponential, but the temperature that should be used in his equation is not the temperature of the tea, but the temperature difference between the tea and his desk.

The curve is not linear and not parabolic, excluding the other answer choices.

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9m-19=3M+1. M=10/3 can you tell me the answer

lana [24]

Plug in 10/3

9(10/3)-19= 3(10/3)+1

30-19= 10+1

11=11

That is the solution.

I hope this helps!
~kaikers

7 0

3 years ago

Find the payment necessary to amortize a 6.3% loan of 7500 compounded semiannually, with 6 semiannual payments. Find the payment

Lorico [155]

Answer:

Semiannual payment = $ 1391.37

Total payment = $ 8348.22

Interest paid = $ 848.22

Step-by-step explanation:

Since, the semiannual payment formula of a loan,

$P=\frac{PV(\frac{r}{2})}{1-(1+\frac{r}{2})^{-n}}$

Where,

PV = present value of the loan,

n = number of semiannual payments,

r = annual rate,

Here, PV = 7500, r = 6.3% =0.063, n = 6,

By substituting the value,

The semiannual payment would be,

$P=\frac{7500(\frac{0.063}{2})}{1-(1+\frac{0.063}{2})^{-6}}$

$\approx \$ 1391.37$

Also, total payment = semiannual payment × total semiannual periods

= 1391.37 × 6

= $ 8348.22,

Also, the interest paid = total payment - present value

= 8348.22 - 7500

= $ 848.22

6 0

4 years ago

I NEED HELP WITH THIS. PLEASE HELP. I'M GETTING GRADED ON IT TODAY.

choli [55]

Answer:

Point P = (-9,11)

Step-by-step explanation:

Point M: (1,3) X and Y have the 2 on the bottom right of them

Midpoint N: (-5,7)

Point P: (X*2, Y*2)

( 1 + X*2 3 + Y*2 )

( _______ ________ ) = (-5 , 7)

( 2 , 2 )

( 1 + X*2 )

( _____ ) = -5

( 2 )

Then multiply the left equation above by 2, and that cancels out the 2 being

divided on the bottom. Also, multiply the -5 by 2 and you get -10

1 + X*2 = -10

+1 +1

__________

X*2 = -9

X = -9

( 3 + Y*2 )

( ______ ) = 7

( 2 )

Then multiply the left equation above by 2, and that cancels out the 2 being divided on the bottom. Also, multiply the 7 by 2 and you get 14

3 + Y*2 = 14

-3 -3

_________

Y*2 = 11

Y = 11

Hope this helps, good luck! :)

3 0

3 years ago

Read 2 more answers

Leah asks people at a theater how old they are. She finds that 8 out of

raketka [301]

Answer:

Step-by-step explanation:

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3 years ago

Find the distance between e (7,-2) and f (-2,-2)

Anettt [7]

(x,y)
y does't change makes it easier

frm 7 to -2
-2-7=-9
distance is 9

6 0

3 years ago