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Karo-lina-s [1.5K]
3 years ago
11

Enter an equation in standard form of the line. (4,-9) and (2, -3) are on the line.(10 points)

Mathematics
1 answer:
podryga [215]3 years ago
3 0

Answer:

((7

Step-by-step explanation:

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Dylan's Bicycle Shop offers a new bicycle on sale for $259.92 after a 10% markdown. What was the cost of the bicycle to Dylan if
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Part A. Markdown answer = $233.93

$259.92*0.10=$25.992 or $25.99

$259.92 - $25.99 = $233.93 cost after 10% markdown

Part B. Markup answer = $337.90

$259.92 * 0.30= $77.976 of $77.98

$259.92 + $77.98 = $337.90 cost after 30% markup

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Find the equation to the line , Please help !!!!
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The equation is y=-3/2+3
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An airplane descends from 15,000 feet at a rate of 200 feet per second.
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Answer:

The answer should B, only one makes sense

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3 years ago
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An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o
Gnoma [55]

Answer:

C

Step-by-step explanation:

In general for arithmetic sequences, recursive formulas are of the form

aₙ = aₙ₋₁ + d,

and the explicit formula (like tₙ in your problem), are of the form

aₙ = a₁ + (n - 1)d,

where d is the common difference. So converting between the two of these isn't so bad. In this case, your problem wants you to have an idea of what t₁ is (well, every answer says it's -5, so there you are) and what tₙ₊₁ is. Using the formulas above and your given tₙ = -5 + (n - 1)78, we can see that the common difference is 78, so no matter what we get ourselves into, the constant being added on at the end should be 78. That automatically throws out answer choice D.

But to narrow it down between the rest of them, you want to use the general form for the recursive formula and substitute (n + 1) for every instance of n. This will let you find tₙ₊₁ to match the requirements of your answer choices. So

tₙ₊₁ = t₍ₙ₊₁₎₋₁ + d ... Simplify the subscript

tₙ₊₁ = tₙ + d

Therefore, your formula for tₙ₊₁ = tₙ + 78, which is answer choice C.

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3 years ago
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Form a sequence that has two arithmetic means between -13 and 89.
scoray [572]
It would be D. If you add all the numbers (-18, -81, 144) and divide it by 3 then you would get -81. I hope I helped!
8 0
3 years ago
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