The equation is 3.75 x c = p
Answer:
Step-by-step explanation:
90 × 3=270 dollars
6×3= 18 lawns
Answer:
(A) Angles in equilateral triangle are congruent
Step-by-step explanation:
From the figure, it can be seen that in triangle ABD, which means that all the sides of the triangle are congruent and by the definition of equilateral triangle, ΔABD will be an equilateral triangle.
Therefore, Using the property that Angles in equilateral triangle are congruent, we can find the value of x.
Thus, option A is correct.
Answer:
The simple size needed, taking into the account the pilot study and the requirements, would be 1370.
Step-by-step explanation:
There is a formula we can use in order for us to determin the sample size for estimating a proportion ρ
which is derived from the formula from the margin of error E. Here, Ps is the estimate of the true proportion of costumers who refuse to go back to the restaurant.
Ps = 29/319 = 0.0909
Qs = 1 - Ps = 0.909
E = 0.20
the z score for a confidence level of 99% is 2.575
n = 1370