A survey recorded the colour of cars as they passed. Colour Frequency Relative Frequency Red 13 Silver 34 Black 25 White 10 Blue 8 Estimate the number of white cars you would expect to see if 4000 cars passed by?

444

Step-by-step explanation:

A survey recorded the colour of cars as they passed.

Colour Frequency Relative Frequency

Red             13                   13/90

Silver          34                   34/90

Black          25                   25/90

White          10                   10/90

Blue             8                     8/90

Total           90

The relative frequency of white cars is 10/90 or 1/9.

If 4000 cars passed by, you'd expect to see

1/9 * 4000 white cars = 444 white cars

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh

yes they are the same