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const2013 [10]
3 years ago
6

What is the equation of the line that passes through point (4,12) and has a y-intercept of -2

Mathematics
2 answers:
kherson [118]3 years ago
8 0
The answer is A. y = 5/2 x -2
algol [13]3 years ago
4 0
First; the slope:
(4,12) and (0, -2)
(12(-)-2)/(4-0)
(12+2)/4
14/4
7/2x

Now the equation: y=7/2x-2
So it is B

Hope this helps :)


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Step-by-step explanation:

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3 years ago
F(n)=5.(-2)n-1<br>Complete the recursive formula of f(n).​
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Answer:

a(n) = (-2)(a_{n-1})

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Step-by-step explanation:

The given expression is in the form of the explicit formula of a geometric sequence.

f(n) = a(r)^{n-1}

Where 'a' = First term of the sequence

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Recursive formula of a geometric sequence is,

a(n) = (a_{n-1}).(r)^{n-1}

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6 0
3 years ago
Jan left her home and drove for 5.2 hours due north at a rate of 60 miles per hour. After visiting a friend, she drove due south
Andreyy89

Answer:

180 miles

Step-by-step explanation:

Going North

<em><u>Formula</u></em>

d = r * t

<em><u>Givens</u></em>

r = 60 mph

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d = ?

<em><u>Solution</u></em>

d = 5.2 * 60 = 312 miles north

Going South

<em><u>Givens</u></em>

r = 55 mph

t = 2.4 hours

<em><u>Solution</u></em>

d = r * t

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Distance North = 312  -   132 = 180 miles

4 0
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