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Vadim26 [7]
3 years ago
11

I need help quickly please

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0
Domain should be all real numbers

answer is A. first choice
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the length of a rectangle is increasing ata a ate of 8cm and is width is increasing at a rate of 3cm when the length is 20cm and
Mumz [18]

Answer:

us set up the following variables:

⎧

⎪

⎪

⎪

⎪

⎨

⎪

⎪

⎪

⎪

⎩

l

Length of Rectangle (cm)

w

Width of Rectangle (cm)

A

Area of Rectangle (

c

m

2

)

t

Time (s)

We are told that:

d

l

d

t

=

8

cm/s (const), and,

d

w

d

t

=

3

cm/s (const)

The Area of the rectangle is:

A

=

l

w

Differentiating wrt

t

(using the product rule) we get;

d

A

d

t

=

(

l

)

(

d

w

d

t

)

+

(

d

l

d

t

)

(

w

)

∴

d

A

d

t

=

3

l

+

8

w

So when

l

=

20

and

w

=

10

⇒

d

A

d

t

=

3

⋅

20

+

8

⋅

10

∴

d

A

d

t

=

60

+

80

∴

d

A

d

t

=

140

cm

6 0
3 years ago
A book contains 27 pages with print, 8 pages with print and pictures, and 3 blank
ArbitrLikvidat [17]

Answer:

P(NOT printed page) = 3/38

Step-by-step explanation:

Total pages = 27+8+3=38

Types of pages that satisfy requirement(s)= 3

Therfore, P(NOT printed page) = 3/38

6 0
3 years ago
What is Steven’s slugging average if his stats are- Show steps. 25 singles 10 doubles 3 triples 10 homeruns 140 at-bats
kap26 [50]
<h2>Hello!</h2>

The answer is:

The correct answer is c.

SluggingAverage=\frac{25(1)+10(2)+3(3)+10(40)}{140}=\frac{94bases}{140times}=0.671

<h2>Why?</h2>

To calculate the slugging average or slugging percentage, we need to divide the number of total bases by the total times at bat.

SluggingAverage=\frac{TotalBases}{TimesAtBat}

We know that:

A single means 1 base.

A double means 2 bases.

A triple means 3 bases.

A homerun means 4 bases.

So, we know that:

Singles=25=25bases\\Doubles=2*10=20bases\\Triples=3*3=9bases\\Homeruns=10*40=40bases\\TimesAtBat=140

Then, substituting and calculating we have:

SluggingAverage=\frac{25bases+20bases+9bases+40bases}{140}

SluggingAverage=\frac{94bases}{140times}=0.671

Hence, the correct answer is c.

SluggingAverage=\frac{25(1)+10(2)+3(3)+10(40)}{140}=\frac{94bases}{140times}=0.671

Have a nice day!

6 0
4 years ago
What decimal is equivalent to 85%
mojhsa [17]

Answer:

0.85

Step-by-step explanation:

4 0
4 years ago
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On the three quizzes so far, Eric has scored 75, 92, and 83. What must he score on the fourth
AVprozaik [17]
He can make a 70 or higher to keep a B avg.
3 0
3 years ago
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