Answer:
9 - X x 2
Step-by-step explanation:
nine subtracted from twice a number (X) which is written as 9 - X x 2 or 9 - 2x
Answer:
57.87
Step-by-step explanation:
First, we need to find the area of the rectangle.
12x6=72
Next, we need to find the area of the full circle.
r=3
The area of the full circle is 28.26.
So half of the circle's area is 14.13.
Now, we subtract the area of half the circle from the total rectangle.
72-14.13=57.87
The answer is 57.87
Answer:
Answer is B
0.008
Step-by-step explanation:
I guess you are talking about a triangle . The 3 angles add up to 180 degrees.
b + c = 180 - 25 = 155 degrees
When b > 51 degrees then
c <= 155 - 52
c <= 103 degrees
When b < 57
c >= 155 - 56
c >= 99 degrees
Possible measurements for angle c :=
99 =< c <= 103 (answer).
Answer:
13 and 44
Step-by-step explanation:
let x and y be the 2 numbers with y < x , then
x - y = 31 ( add y to both sides )
x = y + 31 ( subtract 31 from both sides )
x - 31 = y → (1)
4y = x + 8 → (2)
substitute y = x - 31 into (2)
4(x - 31) = x + 8
4x - 124 = x + 8 ( subtract x from both sides )
3x - 124 = 8 ( add 124 to both sides )
3x = 132 ( divide both sides by 3 )
x = 44
substitute x = 44 into (1)
44 - 31 = y , then
y = 13
the 2 numbers are 13 and 44