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sweet [91]
3 years ago
13

An equation that represents the set of points that are 2 units from (-2,-6)

Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0
If the set of points have a constant distance (radius, r) from a point, the set of points form a circle, which has the standard equation:

(x-x0)^2+(y-y0)^2=r^2

where (x0,y0) is the given point (-2,-6), and r=radius=2.

Substituting, the equation is then
(x-(-2))^2+(y-(-6))^2=2^2, or

(x+4)^2+(y+6)^2=4......(1)
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I need help please! I've been stuck on this for a week and its really stressful lol
worty [1.4K]

Answer:

y=0.2*4^{x}

Step-by-step explanation:

Notice when x increases 1, y is 4 times the previous one, so

the function is like y=C*4^{x}

To determine the constant C, put any pair of (x, y)

Use x = 0, y = 0.2, so

0.2 = C*4^{0} = C * 1 = C

then y=0.2*4^{x}

5 0
2 years ago
Read 2 more answers
Match the missing term with the perfect square trinomial 9X^2+?+25<br> 49<br> 6x<br> 36<br> 30x
Igoryamba
9x^2+t+25=(ax+b)^2

9x^2+t+25=a^2*x^2+2abx+b^2 so

a^2=9 so a=3

b^2=25 so b=5 then

t=2ab using a and b from above

t=2*3*5=30

So the missing term is 30x
4 0
3 years ago
Mr Burns wants to buy every student in year 11 a doughnut
dusya [7]

26*5 is 130

He'll have ten left over if each student in year 11 has one :) Hope this helps!

6 0
3 years ago
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What is the factor to this as a expression?
kotegsom [21]

Answer:

The expression is not factorable with rational numbers

Step-by-step explanation:

7 0
2 years ago
Which expression is equivalent to log w (x2-6)4
natka813 [3]
Log w (x^2-6)^4

Using log a b = log a + log b, with a=w and b=(x^-6)^4:
log w (x^2-6)^4 = log w + log (x^2-6)^4

Using in the second term log a^b = b log a, with a=x^2-6 and b=4
log w (x^2-6)^4 = log w + log (x^2-6)^4 =  log w + 4 log (x^2-6)

Then, the answer is:
log w (x^2-6)^4 = log w + 4 log (x^2-6)
7 0
3 years ago
Read 2 more answers
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