Answer:
Option C: 4
Step-by-step explanation:
<u>Use the Pythagorean Theorem:</u>
Therefore, the value of x is 4.
Answer:
x = -2 ±√13
Step-by-step explanation:
To complete the square, take the middle term bx and divide it in two. Then take the square.
x^2 + 4x - 9 has bx = 4x. Take 4/2 = 2. Square 2^2 = 4.
Now to finish completing the square add 4 to each side.
x^2 + 4x - 9 = 0
x^2 + 4x + 4 - 9 = 4
(x+2)^2 -9 = 4
Add 9 to both sides and take the square root of each side to solve.
(x+2)^2 = 13
(x+2) = ± √13
x = -2 ±√13
Perimeter (rectangle)=2(lenght)+2(width)
perimeter=24 cm
lenght =9 cm
Therefore:
24 cm=2(9 cm) + 2 width
24 cm=18 cm +2 width
2 width=24 cm -18 cm
2 width=6 cm
width=6 cm / 2=3 cm
Answer: width=3 cm.
95% confidence interval is given by
x - 2D , and x+ 2D
For 99% confidence interval is
x - 3D , and x + 3D
x = 100000
D = 2000
Then calculate
100000 - 3•2000= 94000
and
100000 + 3•2000= 106000
Now find √D = 44.72
Then interval is
100000 - 44.72 ,. And. 100000 + 44.72
99,956 lower limit and. 100472 upper limit
Then we see that theres only one interval ,
that is between thes 2 limits
ANSWER Is OPTION C) ) ($99.996.46, $100,003.55)
Answer:
7/3
Step-by-step explanation:
There you go!
Glad to help
