Answer:
1. 2268.
2. 12.
Step-by-step explanation:
1. Given the mathematical expression; 2 * 2 * 9 * 7 * 9
We would simplify the expression;
2 * 2 * 9 * 7 * 9 = 4 * 81 * 7
2 * 2 * 9 * 7 * 9 = 28 * 81
2 * 2 * 9 * 7 * 9 = 2268
2. Given the mathematical expression; 2² + 2 * 2²
From BODMAS (Bracket Of Division Multiplication Addition Substraction), we would first of all multiply before performing an addition operation.
Therefore,
2² + 2 * 2² = 4 + 2 * 4
2² + 2 * 2² = 4 + 8
2² + 2 * 2² = 12
Answer:
y = 15 + 7.50x
Step-by-step explanation:
It is given that, At a park, the cost to rent a bike has an initial fee of $15.00 plus $7.50 per hour.
Let the number of hours is x and the total cost is y.
When the bike is rented for x hours, its cost will be 7.50x.
Total cost (y) in terms of number of hours is given by :
y = 15 + 7.50x
Hence, this is the required equation.
85 goes into 221 2 times. To prove it you can do 85 x 2 which is 170. If you multiply it by 2 it goes over so it is 2.
Hello Again!
The midpoint divides a length into two equal distances.
Equation: 4x+2 = 4x+2
or 2(4x + 2) = 5x + 13
x =
2(4x + 2) = 5x + 13
8x + 4 = 5x + 13
-5x -5x
3x + 4 = 13
-4 -4
3x = 9
divide 3 on both sides:
x = 3
PQ = 28
4(3)+2 + 4(3)+2
24 + 4
28
Since we already know that the slope is 0, x cancels out in the equation.
y = mx + b → y = b
We just need to find the y-intercept. Using the coordinate (2, 4) we can substitute with y.
4 = b
Hence, the answer is b) y = 4
Hope This Helped! Good Luck!