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Firdavs [7]
3 years ago
13

Which formula defines the sequence f(1)=2, f(2)=6, f(3)= 10, f(4)= 14,f(5)=18

Mathematics
1 answer:
lianna [129]3 years ago
7 0

Answer:

y=4x-2

Step-by-step explanation:

for every 1 unit increase in x, y values change by a factor of four units

slope=4x

f(x)=y

y=mx+b

2=4(1)+b

b=-2

equation= y=4x-2

CHECK

6=4(2)-2

6=8-2

6=6

CORRECT

10=4(3)-2

10=10

CORRECT

alternatively... (y2-y1)/(x2-x1)

(6-2)/(2-1)= (4)/(1)

slope=4

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8 multiplied by the sum of a number and 5 is 24.
ziro4ka [17]

Answer:

-2

Step-by-step explanation:

24/8 (Opposite of multiplied)

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-5 (The opposite of sum)

3-5

-2

8 0
2 years ago
What is the density of a piece of wood<br> that has a mass of 17.5 grams and a<br> volume of 20 cm'?
Lina20 [59]
0.875 is the density for this question
5 0
3 years ago
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Marrrta [24]

Answer:

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Solve for surface area

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4+h2

a Base edge

Enter value

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5 0
3 years ago
If x²-5x +1 =0, what is the value of -<br><img src="https://tex.z-dn.net/?f=%28x%20%2B%20%20%5Cfrac%7B1%7D%7Bx%7D%20%29%20%20" i
ra1l [238]
<h3>Answer:   5</h3>

=================================================

Work Shown:

x^2 - 5x + 1 = 0

x^2 + 1 - 5x = 0

x^2 + 1 = 5x

(x^2 + 1)/x = 5    .... where x is nonzero

(x^2)/x + (1/x) = 5

x + (1/x) = 5

---------------

An alternative method involves solving the original equation using the quadratic formula. After you get the two roots x = p and x = q, you should be able to find that p + 1/p = 5 and also q + 1/q = 5 as well.

In this case,

p = (5 + sqrt(21))/2

q = (5 - sqrt(21))/2

8 0
2 years ago
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Download Photo math it will help u a lot with steps
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