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Andru [333]
3 years ago
5

Kendra wants to paste 500 photographs into an album, 6 photos to a page. She figures that she will need about 100 pages. Is this

answer reasonable?
Mathematics
2 answers:
sdas [7]3 years ago
8 0
Yes, because after rounding six to ten, 500/10 = 100.
marusya05 [52]3 years ago
6 0
Sort of because 500/6 = 83 pages, 100 pages is a reasonable answer.
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Find an equation for the line tangent to the curve at the point defined by the given value of t. Also, find the value of d^2y/dx
nikdorinn [45]

Answer:

Differentiation will give you the gradient for the tangent at any point, and you use the product rule whenever a function can be thought of as two functions multiplied together.

If

f

(

x

)

=

g

(

x

)

×

h

(

x

)

then

f

'

(

x

)

=

g

'

(

x

)

h

(

x

)

+

g

(

x

)

h

'

(

x

)

so if

y

=

x

×

sin

x

then

d

y

d

x

=

1

×

sin

x

+

x

×

cos

x

=

sin

x

+

x

cos

x

We know that

x

=

π

2

, so the gradient is

m

=

sin

(

π

2

)

+

π

2

cos

(

π

2

)

=

1

+

π

2

×

0

=

1

Therefore, we can say that

y

=

m

x

+

c

y

=

(

1

)

x

+

c

y

=

x

+

c

So all we really need to find now is the value for

c

, the

y

intercept. We do this by working out a point

(

x

,

y

)

on the graph. We are already given that

x

=

π

2

, so

y

=

x

sin

x

=

π

2

sin

(

π

2

)

=

π

2

×

1

=

π

2

∴

(

x

,

y

)

=

(

π

2

,

π

2

)

Now we substitute this into the equation we already have for the tangent,

y

=

x

+

c

,

(

x

,

y

)

=

(

π

2

,

π

2

)

π

2

=

π

2

+

c

c

=

π

2

−

π

2

=

0

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y

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x

+

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=

x

+

(

0

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x

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y

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3 0
2 years ago
60 menos 24 cuanto es por fa
alukav5142 [94]
I can't exactly understand what you mean but what I thought you put in the answer is 40
3 0
3 years ago
Read 2 more answers
Sheila made 9 shots in the long distance competition for a total of 21 points. Some of her shots were worth 2 points and the res
Paladinen [302]

I don't know if you need the average but i did 21 divided by 9 and got 2.333

7 0
3 years ago
Read 2 more answers
A school raised $4,111 in donations. They plan to use the money to buy new social studies textbooks. Each textbook costs $40. Es
Debora [2.8K]

Answer:

102 textbooks

Step-by-step explanation:

From the above question,

The total amount in donations = $4,111 . They plan to use the money to buy new social studies textbooks. Each textbook costs $40.

If :

$40 = 1 textbook

$4,111 = x text books

Cross Multiply

40 × x textbooks = $4,111 × 1

x = $4,111/40

x = 102.775 textbooks

Since the number of textbooks is whole number and it cannot in be decimal, the number of textbooks they can purchase is 102 textbooks

4 0
3 years ago
Beth poured the same amount of juice into 10 glasses. She used 2 quarts of juice. How much juice is in each glass? Here are the
zloy xaker [14]

Answer:

A: 2/10

Step-by-step explanation:

She's pouring the 2 quarts into 10 cups, therefore if you drew it out, the amount each cup would have 1/5(or 2/10) of the quart.

7 0
3 years ago
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