Answer: A
If its around the line and the dots are going the same way than its accurate.
Answer: There are 1400 different combinations.
Step-by-step explanation:
The conditions are:
we have 4-digits: abcd.
all the digits are different.
a is an odd number, and b is an even number.
Then, for a, we have the options 1, 3, 5, 7 and 9 (so we have 5 options).
for b, we have the options 0, 2, 4, 6 and 8 (so we have 5 options).
for c, we can have odd or even numbers, so we have 8 options ( remember that there where 2 numbers already taken away, this is why we have only 8 options).
for d we have 7 options (because 3 numbers are already taken).
Then the number of combinations is equal to the product of the number of options for each selection:
C = 5*5*8*7 = 1400
Answer:
3
Step-by-step explanation:
Answer:
A. 2·x² + 16·x + 32 ≥ 254
Step-by-step explanation:
The given dimensional relationship between the dimensions of the photo in the center of the cake and the dimensions of the cake are
The width of the cake = The width of the photo at the center of the cake, x + 4 inches
The length of the cake = 2 × The width of the cake
The area of the cake Wanda is working on ≥ 254 in.²
Where 'x' represents the width of the photo (at the center of the cake), let 'W' represent the width of the cake, let 'L' represent the length of the cake, we get;
W = x + 4
L = 2 × W
Area of the cake, A = W × L ≥ 254
∴ A = (x + 4) × 2 × (x + 4) = 2·x² + 16·x + 32 ≥ 254
The inequality representing the solution is therefore;
2·x² + 16·x + 32 ≥ 254
