Answer:
30cm
Step-by-step explanation:
a circle is 360 degrees
120/360 = 1/3 the circumference
90 cm * 1/3 = 90 / 3 = 30
Answer:
4/2
Step-by-step explanation:
Step-by-step explanation:
2x + y = 21
Solving
2x + y = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 21 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 21 + -1y
2x = 21 + -1y
Divide each side by '2'.
x = 10.5 + -0.5y
Simplifying
x = 10.5 + -0.5y
Answer:
Step-by-step explanation:
To calculate slopes use the equation rise / run.
So count how many boxes up and divide that number by the number of boxes across to find the slope.
Make sure that you are using exact point on the slope (where the dots are on the line) to make it easier to calculate.
Also start from the left-most dot (look at slope B example)
For example for the slope of A:
2 blocks up, 5 blocks to the right so the slope is 2/5
But for slope B, since the first dot is higher than the second dot:
5 blocks down (-5), 1 block right so the slope is -5/1 or just -5.
Answer:
C - 810,000
Step-by-step explanation:
The ten-thousandths place in 813,764 is the 1
Since the 3 (after the 1) is less than 5, round down
Rounding gives you 810,000
