Answer:
Step-by-step explanation:
x(x+2) = 143
:::::
x² + 2x - 143 = 0
x = [-2 ±√(2²-4(1)(-143))]/[2(1)] = 11, -13
:::::
11 and 13
:::::
-13, -11
0.00008 written in scientific notation is 8x10^-5
<span>5 < 2x + 1 < 11 separate into inequalities
2x+1>5
2x+1<11 solve the inequalities
x>2
x<5 find the intersection
answer: x= (2.5)
I hope this helps :) (photomath is a really good app for math like this! It shows the works too!)</span>
Answer:
D
Step-by-step explanation:
Got it right on test
Answer:
x = 8
Step-by-step explanation:
Intersecting chord theorem : the products of the lengths of the line segments on each chord are equal. To get a better understanding of this kindly view the attatched image
This means 6 * 4 = 3x
==> multiply 6 and 4
24 = 3x
==> divide both sides by 3
x = 8