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Sophie [7]
3 years ago
15

State whether the lines are parallel, perpendicular, coinciding, or neither y=0.3x+40 and y=-3 1/3x+15

Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer:

Perpendicular

Step-by-step explanation:

The slope of the first equation is 0.3 = 3/10

You need the opposite sign of the reciprocal for perpendicular

10/3 is reciprocal, 3 1/3 is equivalent, - 3 1/3 is perpendicular

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The function f(x)=501170(0.98)x gives the population of a Texas City x years after 1995. What was the population in 1995?
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Answer:

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3 0
3 years ago
Read 2 more answers
PLEASE HELP URGENT‼️‼️
Dima020 [189]

Part A

(3x)^2*x^4

(3x)*(3x)*x^4 .... expand out (3x)^2

(3*3)*(x*x*x^4)

9x^6

Answer:  9x^6

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

Part B

It appears that Tonya forgot to square the 3 term and had this as her steps

(3x)^2*x^4

3x^2*x^4

3x^(2*4)

3x^8

Which is incorrect as the answer in part A indicates.

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The rule is a^b*a^c = a^(b+c). In this case, a = x, b = 2 and c = 4.

So x^2*x^4 = x^(2+4) = x^6

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