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creativ13 [48]
3 years ago
11

Cereal A supermarket finds that the number of boxes of a new cereal sold increases each week. In the first week, only 20 boxes o

f the
sold and in the
were sold. In the next week, 53 boxes of the cereal were sc
third week 86 boxes of the cereal were sold. The number of
boxes of cereal sold each week represents an arithmetic sequence.
cereal sold in week n? What is the explicit rule for the arithmetic sequence that defines the number of boxes of
Mathematics
1 answer:
Vladimir [108]3 years ago
4 0

Answer:

33n - 13

Step-by-step explanation:

20, 53, 86?

That's an arithmetic sequence with the common term being 33.

The explicit formula? 33n - 13. :)

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Irina-Kira [14]
I wish I knew this one also
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2 years ago
Find the equation of the tangent line and normal line to the curve y=(6+4x)2 at the point (6,900). Write the equations of the li
Ksenya-84 [330]

Answer:

Equation of the tangent to the curve

y = 240x - 215994

Equation of the normal

y = (-1/240)x + 9.75 = - 0.00417x + 9.75

Step-by-step explanation:

y = (6 + 4x)² = 36 + 48x + 16x² = 16x² + 48x + 36

dy/dx = 32x + 48

At the point (6,900),

dy/dx = 32(6) + 48 = 240

Equation of the tangent at point (a,b) is

(y - b) = m(x - a)

a = 6, b = 900, m = 240

y - 6 = 240(x - 900)

In the y = mx + b form,

y - 6 = 240x - 216000

y = 240x - 215994

The slope of the normal line = -(1/slope of the tangent line) (since they're both perpenducular to each other)

Slope of the normal line = -1/240

Equation of normal

y - 6 = (-1/240)(x - 900)

y - 6 = (-x/240) + 3.75

y = (-1/240)x + 9.75

y = - 0.00417x + 9.75

8 0
3 years ago
Solve<br> 2(x+4)= 20<br> Solve this please
Natasha2012 [34]
2x+8=20
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2 years ago
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Easy ill tell u and then do a equation first sense it has - it means u have to subtract alright it goes like this. 17,1
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                                                   --------
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and this is ur answer as u see in my equation ur welcome only give me brainiest only if im right 
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3 years ago
Help please I’m stuck
Jlenok [28]
12:4=3
9:3=3
so u multiply each side by 3 to get the second triangle..
answer: 4.5*3 =13.5
4 0
3 years ago
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