ythe base of the triangle is 15 + 8 = 23 feet
and the angle is 50 degrees
to find the height of the street lamp
multiply the base ( 23) by the Tan(50)
tan(50) x 23 = 27.41 feet rounded to nearest foot would be 27 feet
100 more than 146 is 246
add 100 to 146 and it becomes 246
Iaosceles triangle has equal base angles so 53+53 equals 106. And a triangle is 180 degrees so 180-106=74 so the vertex angle is 74 degrees.
Answer:
(a) 3, 5 and 6
Step-by-step explanation:
In the experiment, 43 are to be given a gel that contains the tooth-whitening chemicals while the remaining 42 are to be given a placebo. Therefore, a placebo is used.
The 43 that will receive the gel are to be selected randomly.
After the experiment, the whiteness of the two groups will be compared to see the effect of the gel.
Therefore for the experiment to be completely random, 3, 5, and 6 apply.
(b)
For the experiment to be double-blind, the researchers who will evaluate the whiteness and interact with the subjects, and the subjects would not know which subjects received either the whitening gel or the placebo.
Answer:
$0.50
Step-by-step explanation:
let x represent the price of a singular hot dog
8x = 4$
x = 4/8$
x = 0.50$