Answer:
50/50 chance
Step-by-step explanation:
A coin only has 2 sides so when you flip it you will always have a 50/50 chance of landing on heads or tails
Answer:
45
Step-by-step explanation:
A number consists of 2 digits whose sum is 9 => x + y = 9
If the order of the numbers is inverted, the result is equal to the given number plus 9 units => (10*y + x) + 9 = (10*x + y)
Thus:
x + y = 9 => multiply by -9 => 9*y + 9*x = 81
10*y + x + 9 = 10*x + y => 9*y - 9*x = -9
We are left then that:
9*y + 9*x = 81 (1)
9*y - 9*x = -9 (2)
we add both equations
18y = 72
y = 72/18 = 4
replacing
x + y = 9
x + 4 = 9
x = 5
Therefore the number is (10y + x) => (10 * 4 + 5) => 45
Answer: 225
Step-by-step explanation:
<u>What is a square number</u>?
A square number is a product of a number times itself
So, the 12th square number would be 12 * 12, or 12²
The 9th square number would be 9 * 9, or 9²
The equation would be 12² + 9²
So:
12² + 9²
= 144 + 81
= 225
So, the answer is 225
Well lets go through what I know
- The answer to the first one (A) is 49 and were looking for 45
- Second questions answer (B) is 45 and that's the number were looking for so there's no need to go any further.
So the answer we are looking for is (B) 45
Hope this helps!
Answer:
f(x) = -2x -3
Step-by-step explanation:
-3 is the point in the y-axis, making it value b
the slope is 1/-2 making the value m = -2
