Answer is - 10
Step-by-step explanation:
Let the missing number be ‘x’
-8-x = 2
-x = 2 + 8
-x =10
x = -10
Answer:
(a)Discrete Variable (Option D)
(b)Continuous Variable (Option C)
Step-by-step explanation:
A Discrete Variable is a variable that can only take on a finite number of values. All qualitative variables are discrete.
A continuous variable on the other hand is a variable that can take on values over a non-empty range of the real numbers.
(a)The number of people in a restaurant is a discrete variable and the possible values are x=0,1,2,...,300. You cannot have 0.5 persons in a restaurant.
(b)The amount of snowfall is a continuous variable and the values of the amount of snowfall, s could take on any real value greater than or equal to zero.
We know that we can do
ab+ac=a(b+c)
so find common factor
factor them
27a=a times 3 times 3 times 3
21=3 times 7
common factor=3
3=a
27a/3=9a
21/3=7
so now we have
(3)9a+(3)7=3(9a+7)
So bc. a rhombus has 4 sides and we know that a side has length of 20 cm so the perimeter will be 4*20=80 cm
Answer:
Step-by-step explanation:
To find the surface area of the cylinder you must apply the following proccedure:
- Calculate the surface area of the circles. They are equal, then you can multiply the surface area of a circle by 2:
Where r is the radius.
- Calculate the surface area of the rectangle:
Where l is the lenght and w is the width.
(The length is the circumference of the circle)
Then:
- Add the areas obtained.
The result is: