Answer:
x = 98°
Step-by-step explanation:
The triangle on the left is isosceles, thus the base angles are congruent.
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
82° is an exterior angle of the triangle
let y be the base angles, then
y + y = 82
2y = 82
y = 41°
The triangle on the right is isosceles, thus the base angles are congruent.
The left vertex = 41° ( vertical to y ), then
x = 180° - (41 + 41)° = 180° - 82° = 98°
1) 1 drink
2) too lazy to figure out sorry
3) 2
4) 1 hour
Answer:
8
Step-by-step explanation:
x - 3 = 5
x = 5 + 3
x = 8
Therefore, the number is 8.
Answer: 2474
Step-by-step explanation:
Given : A pilot sample of 75 items was taken, and the number of items with the attribute of interest was found to be 30.
Then, prior estimate for proportion of attribute of interest:
Significance level :
Critical value :
Margin of error :
The formula use to find the sample size :_
Now, simplify , we get
Now, the number of items more to sample =
Answer:
The center is at (0,-7) and the radius is 7
Step-by-step explanation:
We can write the equation of a circle as
(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius
x^2+(y+7)^2=49
Rewriting
(x-0)^2 + (y- -7)^2 = 7^2
The center is at (0,-7) and the radius is 7