Answer:
What we know is that 30% of the group have brown hair and are girls. It means that in the other 70% we have the boys with brown hair, the other boys and the other girls.
In the case all the girls have brown hair, the 70% remaining would be boys. So 70% of then would have brown hair. (0.7*0.7=0.49 -> 49% of the children would be brown hair) so 49% (boys) and 30% (girls) are more than 50%..
Now, let's suppouse that 90% of the group are girls. It means 10% are boys and 70% of that 10% (=7%) are the boys in the group that have brown hair. Now 7% + 30% of the children have brown hair, wich isn't more than the half.
We have explained with two extreme cases that the information is not enough for making a precise answer
6.34 rounds to 6.
3.95 rounds to 4.
So 6+4=10
Answer: B: CAB and GEF
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
a)
1. You must rewrite the formula for calculate the volume of a sphere:
V=4πr³/3
2. Susbtitue r by d/2 and then solve for d, as following:
V=4π(d/2)³/3
V=(4πd³/8)/3
V=4πd³/24
24V=4πd³
d³=24V/4π
d=∛(24V/4π)
d=2∛(3V/4π)
b) V=4πr³/4
r=d/2
r=(2/3 cm)/2
r=1/3 cm=0.33 cm
V=0.15 cm³
Answer:
4
Step-by-step explanation:because i said
