Hello!
Given that the area of a circle is found by using the formula: A = πr². Also, the circumference of a circle is: C = 2πr.
In order to find the circumference, we need to find the radius first. We can substitute the area into the area formula and solve for r.
25π = πr² (divide both sides by π)
25 = r² (take the square root of both sides)
r = 5
The radius of this circle is 5 units. With the radius, we can find the circumference.
C = 2π(5)
C = 10π, which is equal to about 31.4 units.
Therefore, the circumference of the circle is 10π units.
<span>–4 • (–6.2 + 5) = –4 • (-6.2) + (–4) • 5 it is the so called
</span><span>distributive property
so the answer is
</span><span>B.distributive property</span>
Answer:
y=-1/4x-6
Step-by-step explanation:
The problem wants the form y=mx+b where m is the slope and b is the y-intercept.
The y-intercept in this case is -6 (where the line intercepts the y-axis).
We can use points (0,-6) and (4,-7) to calculate the slope. We just divide the difference in y-values by the difference in x-values.
-6-(-7)/0-4=-6+7/-4=1/-4=-1/4
So the equation of the line is y=-1/4x-6
Answer:
Step-by-step explanation:
3x^3(1/9x^2-6+2x)
This question is not clear, we can not different between the numerator or denominator of some variable.
3x^3×1/9x^2-3x^3×-6+3x^3×2x
1/3x^(3+2)-18x^3+6x^(3+1)
1/3x^5-18x^3+6x^4
Answer:
Step-by-step explanation:
y + 9 = -5/2(x - 10)
y + 9 = -5/2x + 25
y = -5/2x + 16