Answer:
5
Step-by-step explanation:
First do substitution,
Which means |(4)-3|+4
Therefore 1+4=5
Answer:
14
Step-by-step explanation:
she has 10
she gets 4 more
10+4=14
Answer:
D 7
Step-by-step explanation:
Total no. of bulb= 5
no. of defected bulb= 3
no. of not defected bulb=2
Total no. of bulb combination = 5C2
=5!/2!(5-2)!
= 5!/2!3!
= 5×4×3×2×1/2×1×3×2×1
=120/12
=10
( since a room can be lighted with one bulb also)
total no. of bulb combination when room shall not light = 3C2
3!/2!(3-2)!
= 3!/2! 1!
= 3×2×1/2×1×1
= 6/2
=3
Now,
Total no. of trial when room shall light
=10-3
=7
Hence, number of trial when the room shall be lighted is 7 which is option d
<span>$5.20 / 4.16 = $1.25 per pound
answer
it cost $1.25 one pound</span>
The probability that the spinner will land on 5 or 7 if the spinner is spun once is 1/4
<h3>How to determine the probability that the spinner will land on 5 or 7 if the spinner is spun once?</h3>
The sample space of the spinner is
S = {1, 2, 3, 4, 5, 6, 7, 8}
So, the sample size is
Size = 8
On the spinner, we have
n(5) = 1
n(7) = 1
The probability that the spinner will land on 5 or 7 if the spinner is spun once is calculated as:
P = P(5) + P(6)
This gives
P = 1/8 + 1/8
Evaluate
P =2/8
Simplify
P = 1/4
Hence, the probability that the spinner will land on 5 or 7 if the spinner is spun once is 1/4
Read more about probability at:
brainly.com/question/24756209
#SPJ1
