Answer:
⅛
Step-by-step explanation:
⁵⁄₁₄ x ⁷⁄₂₀
= ⁵ˣ⁷⁄₁₄ₓ₂₀
=³⁵⁄₂₈₀
=⅛
Heyy I'm not sure if I'm right
12x^4 + 2x^3 - 30x^2
to find the GCF, let's first look at the coefficients.....the GCF of 12,2,and 30 is 2.
as for the variables....pick the one with the smallest exponent...and that would be x^2
so the GCF of this polynomial is 2x^2 <=
Answer: 4x+8=12
Step-by-step explanation: there is the 1st one im going to try and o the second one oh im a 7th grader
Let n = required random sample size.
Assume that the population standard deviation is known as σ.
Let m = sample mean.
At the 95% confidence level, the expected range is
(m - k(σ/√n), m + k(σ/√n))
where k = 1.96.
Therefore the error margin is 1.96(σ/√n).
Because the error margin is specified as 3% or 0.03, therefore
(1.96σ)/√n = 0.03
√n = (1.96σ)/0.03
n = 128.05σ²
This means that the sample size is about 128 times the population variance.
Answer:
Smallest sample size = 128.05σ², where σ = population standard deviation.
Answer:
1. There are 609 more fiction books than non-fiction books in the library
2. Cheryl had $900 initially