Answer:
When there are numbers like that next to the radical it means multiply. like this: 2<u>√9</u>. You would first figure out the square root. <u>Square root of 9</u> is 3. 2 times 3 is 6.
After you figure out those problems, you just need to put the number, x, and y in an equation with 2 unknowns.
Step-by-step explanation:
Answer:
20.3cm^2
Step-by-step explanation:
Bullseye has a circular shape. So area of a bulleyse = Pi x (radius) ^2
Díameter is 2 inches = 5. 08cm
But radius = diameter /2
Radius = 5.08cm /2
Radius = 2.54cm
Hence Area of bulleyse = 3.14 x (2.54) ^2
= 3.14 x 6. 451 cm^2
= 20.256 cm^2
=20.3cm^2 (to nearest tenth)
(a) there are 8C2 = 28 ways of picking 2 girls from 8
And there are 21C4 = 5985 ways of picking 4 boys
Required number of ways for 2g / 4b = 28 * 5985 = 167,580
(b) at least 2 girls means combinations of 2g/4b , 3g,3b , 4g/2b , 5g 1b or
6 girls.
2g/4b = 167,580 ways
3g/3b = 8C3 * 21C3 = 56 * 1330 = 74,480
4g/2b = 8C4* 21C2 = 70 * 210 = 14,700
5g 1b = 8C5* 21 = 56*21 = 1176
6 girls = 8C6 = 28
adding these up we get the answer to (b) which is 257,964
Answer:
750 if just 27 is being rooted
18.9 if 27 x 250 is being rooted
Step-by-step explanation: