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3 years ago

Pulling a red card from a deck of cards, replacing it, and then pulling a king

Mathematics

1 answer:

erastova [34]3 years ago

3 0

Where is the question?

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Dr. Silvers gas tank holds up to 16 7/8 gallons of gas it took 11.55 gallons of gas to fill her tank how many gallons of gas doe

otez555 [7]

Answer:

2.45 gallons

Step-by-step explanation:

1. Translate $16\frac{7}{8}$ into a whole number or decimal number: 14.

2. We know that Dr. Silvers filled her tank with 11.55 gallons of gas, so subtract 11.55 from 14.

$14 - 11.55 = 2.45$

3. There were 2.45 gallons of gas in Dr. Silvers gas tank before she filled it up.

4 0

3 years ago

A ball is thrown into the air with a speed of 32 feet per second. The function h=32t - 16t^2 models the height of the ball after

beks73 [17]

Answer:

t = 1 s

Step-by-step explanation:

The function models the height of the ball after t seconds is given by :

$h=32t - 16t^2$

We need to find how many seconds does it take for the ball to reach its maximum height.

For maximum height put dh/dt = 0

$\dfrac{dh}{dt}=\dfrac{d}{dt}(32t - 16t^2)\\=32-32t$

So,

32-32t = 0

t = 1

So, it will take 1 second to reach its maximum height.

7 0

3 years ago

Toenails grow at an average rate of about 0.05 mm per day, and the average toenail is about 3/4 inch long. About how many months

nirvana33 [79]

0.05 mm * ? days = 0.75 inch

Use proportions

1 mm = 0.0394 inch
0.05 mm = 0.00197 inch

0.75 inch / 0.00197 inch = 380.71

380.71 days / 30 days = 12.7 months

7 0

2 years ago

Find the missing length of the right triangle.

OLga [1]

Hopes this helps:

Answer: 65

Please mark as brainlist if it’s right.

Have a great day.

7 0

3 years ago

16r^4t-6r^3t^2+4rt^2=

DochEvi [55]

Answer:

$2rt(8r^3-3r^2t+2t)$

Step-by-step explanation:

We have been given a polynomial $16r^4t-6r^3t^2+4rt^2$ and we are supposed to simplify our polynomial.

We will use factoring to simplify our polynomial. Let us factor out the greatest common factor of all the terms.

We can see that 16, 6 and 4 has 2 as their greatest common factor.

The greatest common factor of $r^4, r^3,r$ is r.

The greatest common factor of $t, t^2, t^2$ is t.

So the greatest common factor of the terms of our expression will be $2rt$ .

Let us factor out $2rt$ from our given polynomial.

$2rt(8r^3-3r^2t+2t)$

As we can not factor our expression more, therefore, we will get $2rt(8r^3-3r^2t+2t)$ after simplifying our polynomial.

5 0

3 years ago