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3 years ago

Please help!!!! Will give Brainliest!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Ilya [14]3 years ago

3 0

Answer:

Step-by-step explanation:

1. after 7 hours, you watch 1 movie

2. after 0 hours, youve watched 0 movies

3. after 14 hours, you have watched 2 movies

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Type the correct answer in each box.

Vilka [71]

Answer:

2x + 2y = 24

Step-by-step explanation:

5 0

3 years ago

A bucket that weighs 4 lb and a rope of negligible weight are used to draw water from a well that is 60 ft deep. The bucket is f

jonny [76]

Answer:

2580 ft-lb

Step-by-step explanation:

Water leaks out of the bucket at a rate of $\frac{0.15 \mathrm{lb} / \mathrm{s}}{1.5 \mathrm{ft} / \mathrm{s}}=0.1 \mathrm{lb} / \mathrm{ft}$

Work done required to pull the bucket to the top of the well is given by integral

$W=\int_{a}^{b} F(x) dx$

Here, function $F(x)$ is the total weight of the bucket and water $x$ feet above the bottom of the well. That is,

$F(x)=4+(42-0.1 x)$

$=46-0.1x$

$a$ is the initial height and $b$ is the maximum height of well. That is,

$a=0 \text { and } b=60$

Find the work done as,

$W=\int_{a}^{b} F(x) d x$

$=\int_{0}^{60}(46-0.1 x) dx$

$&\left.=46x-0.05 x^{2}\right]_{0}^{60}$

$=(2760-180)-0[$

$=2580 \mathrm{ft}-\mathrm{lb}
$

Hence, the work done required to pull the bucket to the top of the well is $2580 \mathrm{ft}- \mathrm{lb}$

4 0

3 years ago

How do we use limits in everyday life?

s344n2d4d5 [400]

Not eating all the junk food in the house, not buying that 400 dollars worth of junk you found online and are never going to use, ect. ect.

5 0

3 years ago

A. -1/2<br> B. 1/2<br> C. 1<br> D. 2

scoray [572]

Answer:

D. 2.

Step-by-step explanation:

Using the points (1,3) and (-1,-1):

The slope= (3 - -1) / (1 - -1)

= 4/2

= 2.

7 0

3 years ago

Read 2 more answers

Select all possible equivalent expressions below

const2013 [10]

Answer:the 2nd the 3rd the 5th. Maybe the first.

Step-by-step explanation:

3 0

2 years ago