The standard normal curve shown below models the population distribution of a random variable. What proportion of the values in the population does
not lie between the two z-scores indicated on the diagram?
25.12
20.85
O A. 0.3016
O B. 0.3069
O c. 0.3128
O D. 0.3245
O E. 0.3177

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

b. x + 1

step-by-step explanation:

i'am smart

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.