The right answer gets brainlist

5%

Step-by-step explanation:

Boys are represented by h

We are looking for 4 boys so we want 4 h's

Of the 20 outcomes, there is only 1 with 4 h's

The experimental probability is  number of outcomes with 4's over the total number of outcomes

P() =1/20

Changing this to a percent is  1/20 *5/5 = 5/100 = 5%

5%

Step-by-step explanation:

P(H,H,H,H) = 1/20 = 0.05

0.05 × 100 = 5%

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

answer: i guess 105 degrees?

step-by-step explanation: