Answer:
86°
Step-by-step explanation:
The answer is 50
The ratio of boys to girls is 10:25 in the school
If sample has 20 boys (10x2) then based on ratio it would likely have 50 girls (25x2)
Answer:
Therefore, the total Resistance: R = 93.9 Ω
Step-by-step explanation:
Given
R₁ = 1 × 10²
R₂ = 2.5 kΩ = 2.5 × 10³ Ω
R₃ = 4 kΩ = 4 × 10³ Ω
Given that the given resisters are connected parallel, so using the formula to calculate the total Resistance R:

susbtituting R₁ = 1 × 10², R₂ = 2.5 × 10³ Ω, and R₃ = 4 × 10³ Ω

Multiply by LCM of R, 100, 2500, and 4000: 20000 R

simplify

Switch sides

Divide both sides by 213

Simplify

Ω
Therefore, the total Resistance: R = 93.9 Ω
Answer:
Yes, A, B, C, is correct the answer to question