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2 years ago

Write each phrase as an algebraic expression “the quotient of p and 20 added to 4”

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

7 0

Thr answer is (9 ÷ 20) + 4.

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A cup of coffee with temperature 155degreesF is placed in a freezer with temperature 0degreesF. After 5 minutes, the temperatur

Leviafan [203]

Answer:

45.50° F

Step-by-step explanation:

As per Newton's law,

$T(t) = T_{s}+(T_{0} + T_{s})e^{-kt}$

When T(t) is the final temperature

$T_{s}$ = Temperature of surrounding

$T_{0}$ = Initial temperature

t =duration of cooling

k = constant

$103=0+(155-0)e^{-k\times 5}$

$103=155e^{-5k}$

Now take natural log on both the sides

$ln(103)=ln(155e^{-5k})$

$ln(103)=ln(155)+ln(e^{-5k})$

$ln(103)=ln(155)=-5k$

4.6347 - 5.0434 = -5k

$k=\frac{0.40872}{5}$

k = 0.0817

$T(t)=0+(155-0)e^{(0.0817\times 15)}$

= $155e^{-1.226}$

= 155 (02935)

= 45.49 ≈ 45.50° F

8 0

3 years ago

Choose the constant term that completes the perfect square trinomial.<br><br> y2 + y

Oduvanchick [21]

Hello!

First off, please write y2 + y as y^2 + y. The " ^ " symbol denotes exponentiation, whereas y2 is meaningless.

To find the constant term in question, take half of the coefficient of y (that is, take 1/2) and square it. Then we have y2 + y + 1/4.

The constant term in question is 1/4.

3 0

3 years ago

Question 2

Free_Kalibri [48]

I’m terms of 12 in is the correct answer.

7 0

2 years ago

. Describe a way you can use graham crackers to demonstrate the division problem . Include the result in your description.

Digiron [165]

Answer:

You can split your cracker 4 ways. So each cracker is now 4. Now split your cracker into 4ths, 5•4 = 20! Hope this helps!

Step-by-step explanation:

Your Crackers have those lines, and they split 4 ways. SO this helps make the problem easierto solve.

6 0

3 years ago

Need help!!!!! with this test pls IM SORRY FOR ASKING SO MANY TIMES BUT PLS HELP

Anika [276]

Answer:

I hope its 15/10

Step-by-step explanation:

please let me know if its wrong

6 0

2 years ago

Read 2 more answers