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Sergeu [11.5K]
3 years ago
6

Solve this problem y=.01(x-50)2 +30

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer: x = 5y - 100

Step-by-step explanation:

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A chain letter works as follows: One person sends a copy of the letter to five friends, each of whom sends a copy to five friend
Svetach [21]

Answer:

The number of  people that received copies of the letter at the twentieth stage is<em> 9.537 × 10¹³ </em>.

Step-by-step explanation:

Using the discrete model,

a_k = r a_(k-1) for all integers k ≥ 1 and a₀ = a

then,

aₙ = a rⁿ for all integers n ≥ 0

Let a_k be equal to the number of people who receive a copy of the chain letter at a stage k.

Initially, one person has the chain letter (which the person will send to five other people at stage 1). Thus,

a = a₀ = 1

The people who received he chain letter at stage (k - 1),  will send a letter to five people at stage k and thus per person at stage (k - 1), five people will receive the letter. Therefore,

a_k = 5 a_(k - 1)

Thus,

aₙ = a rⁿ = 1 · 5ⁿ = 5ⁿ

The number of  people that received copies of the letter at the twentieth stage is

<em>a₂₀ = (5)²⁰ = 9.537 × 10¹³ copies</em>

5 0
3 years ago
What is the y-intercept of y = -2x+6y=−2x+6?
goblinko [34]

Answer:

6

Step-by-step explanation:

Given: y=-2x+6

Since the equation is written in slope-intercept form, it is extremely easy to find the y-intercept. Slope-intercept form is written as:

y=mx+b

Whereas:

y: range

m: slope

x: domain

b: y-intercept

With that in mind, we can immediately tell that 6 is the y-intercept.

6 0
3 years ago
Read 2 more answers
Determine which system below will produce infinitely many solutions.
Travka [436]
3x - y = 14

-9x + 3y = -42...divide by -3
3x - y = 14...same as first equation....means same line...means infinite solutions

answer is : 3rd answer choice
6 0
4 years ago
Read 2 more answers
Sandra baked 36 cookies yesterday morning and 24 cookies last night. Tomorrow, she plans on baking 48 more. How many cookies did
pshichka [43]
Answer B) 60 because 34 + 24 is 60
3 0
3 years ago
Determine the equation of a line in standard form that represents Kelsa’s training progress. Her progress corresponds to the poi
UkoKoshka [18]

We first get the gradient of the equation of a line by taking the change in y over change in x

Hence our gradient will be

(6-9.5)/(8-1)=-3.5/7=0.5

Taking an arbitrary point(x,y) and using our gradient we get and one of the points above we get

(y-6)/(x-8)=0.5

y-6=0.5*(x-8)

y-6=0.5x-4

y=0.5x+2 or y=1/2x+2

which is the line of our equation the answer we are asked for.

 

 

<span> </span>

3 0
4 years ago
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