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koban [17]
2 years ago
13

The cost, in dollars, of a gym membership for n months can be described by the explicit equation Pn = 70 + 30n. What does this e

quation tell us?​
Mathematics
1 answer:
nadya68 [22]2 years ago
4 0

Answer:

30 plus 70 equals 100

Step-by-step explanation:

it tells the gum explicit equation

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One positive integer is 5 less than twice another. The sum of their squares is 725. Find the integers.
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Let the numbers are a and b; a - 5 = 2b, and -------------- (1)a2 + b2 = 250 ----------------(2) rewriting and squaring of (1) is given as; a2 = 4b2 + 20b + 25 -------- (3) substituting (3) into (2) (4b2 + 20b + 25) + b2 = 250, thus 5b2 + 20b - 225 = 0 by dividing both sides by 5 b2 + 4b - 45 = 0 solving the quadratic for b, we will get b = -9 or 5, substituting these for b in (1), we will get a asa = -13 or 15 However, if a and b must be positive integer, then a = 15 and b = 5 is the answer
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A chord PQ of length 13cm is drawn in a circle with center C and a radius of 10.2cm.
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2 years ago
What is the equation for the line of reflection that maps the trapezoid onto itself? http://i1253.photobucket.com/albums/hh583/w
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6 0
3 years ago
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tresset_1 [31]

Answer:

2h

Step-by-step explanation:

f(3 + h) = 2(3 + h)^2 + 1

= 2(3^2 + h^2) + 1

= 2(9) + 2h^2 + 1

= 18 + 2h^2 + 1

= 2h^2 + 19

f(3) = 2(3)^2 + 1

= 2(9) + 1

= 18 + 1

= 19

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2h^2 / h

2h

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3 years ago
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