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
Answer:
There is one less strawberry in the salad than blueberry
Step-by-step explanation:
Answer:
B=50
Step-by-step explanation:
THE TRINGLE IS 180 DEGREE (RULE)
(X+38)+(3X-12)+(2X-2)=180
6X=180-(38-12-2)
6X=156
X=26
B=2X-2
B=2(26)-2=52-2=50
Answer:
Both prisms have the same volume.
Step-by-step explanation:
<u>Volume of Naomi's Prism:</u>
5 x 2 x 14 = 140
<u>Volume of Ben's Prism</u><u>:</u>
(5 x 4) / 2 x 14 = 10 x 14 = 140
They therefore have the same volume.
Answer:
If I had to guess
Step-by-step explanation:
I would say 11 degree or 90 degree.
Sorry if I am wrong. :_;