A is 10 and 12
C is 4 and 8
Answer:
Step-by-step explanation:
Answer:
24 gear.
Step-by-step explanation:
It is given that 
.
Gear A = 36 teeth
Gear C = 16 teeth
Let gear B have x teeth.
On cross multiplication we get
Taking square root on both sides.
Therefore, gear B have 24 teeth.
Answer: 8
Step-by-step explanation: As the woman is not looking and assuming that the probability of taking a red ball is the same of a blue ball, she must select 8 balls to be sure she has at least 3 blue balls.
Because at the case of selecting 5 red balls in the first 5 selects and to have at least 3 blue ones in her hand, she will select the third blue ball at selection number 8.
Answer:
A - 5 square root of 3
Step-by-step explanation:
Take one of the triangles and use the pythagorean theorem. A^2 + B^2 = C^2
Hence,
5^2 + x^2 = 10^2
25 +x^2 = 100
25 +x^2 -25 = 100-25
x^2 = 75
Take the square root of both sides. . .
x = 5 square root of 3
