For the first one write 9 divided by 2 gives your your radius an it’s 3.5. the formula is 2 x 3.14 x radius and that gives you 21.98.
the 2nd one is 2 x 3.14 x 9 = 56.52
the 3rd is 2 x 3.14 x 5= 31.4
formula is always 2 x 3.14 (or pie) x radius
to get your radius from your diameter you do your diameter divided by 2
Answer:
Enrique goes for a walk every 3 days, to play his guitar every 8 days and to dance every 12 days. Every how many days do you carry out the three activities?
Answer:
<em><u>Hey</u></em><em><u> </u></em><em><u>mate</u></em>
<em><u>kin</u></em><em><u>dly</u></em><em><u> </u></em><em><u>see</u></em><em><u> </u></em><em><u>att</u></em><em><u>ached</u></em><em><u> </u></em><em><u>picture</u></em><em><u>:</u></em><em><u>)</u></em>
<em><u>hop</u></em><em><u>e</u></em><em><u> it</u></em><em><u> helped</u></em><em><u> you</u></em><em><u> ☺️</u></em>
Answer:
x = -1
y = -3
Step-by-step explanation:
We have two equations:
x + y = −4 (1)
y = 2 * x - 1 (2)
What we will do is substitute (2) in (1) and we are left;
x + 2 * x - 1 = −4
3 * x = -4 + 1
3 * x = -3
x = -3/3
x = -1
Now, to find out and, I replace in (2), like so:
y = 2 * (- 1) - 1
y = -2 -1 =
y = -3
Therefore, the values are:
x = -1
y = -3