Answer:
62,500 pi
Step-by-step explanation:
diameter = radius + radius
d = 2r
r = d/2
A = 4pi r^2
= 4 pi (d/2)^2
= 4pi d^2/4
= 4pi* 250^2/4
= 4pi * 62,500/4
= 4pi * 15625
= 62,500 pi
Answer:
No solutions
Step-by-step explanation:
<em><u>To find out how many solutions there are you must solve:</u></em>
- 2 - 10z = - 4 - 10z
<em><u>Add 10z to both sides:</u></em>
-2 = -4
<u>Since the two terms are different from one another, that means that there are no solutions for this equation.</u>
We can use the points (4, 5) and (8, 10) to solve.
Slope formula: y2-y1/x2-x1
= 10-5/8-4
= 5/4
= 1.25
The answer is [ D. The slope of the graph is 1.25 ]
Best of Luck!
Step-by-step explanation:
-8x > 72
8x < -72
x < -72 ÷ 8
x < -9
Answer:
1. y = 9(x+1/2)^2 -13/4
Step-by-step explanation:
y = 9x^2 + 9x – 1
first isolate the x terms
y = 9(x^2 +x) -1
then add 1/4 inside the brackets to make it a perfect square trinomial (half of the coefficient of the x term squared is how we get 1/4)
since we just added 1/4 we need to subtract what we just added to balance the equation. so 1/4 times 9 is 9/4 ( the number we just added to the equation). then you subtract 9/4 outside of the brackets.
y = 9(x^2 +x +1/4) -1 -9/4
then simplify
y = 9(x+1/2)^2 -13/4