Answer: 3
Step-by-step explanation: because have 20$
Answer:
414
Step-by-step explanation:
substitute the given value 21 for x. so y=750-16(21)
y=750-336
y=414
Answer: The height of the building is 50.75 feet.
Step-by-step explanation:
The ratio between the height of the object and the casted shadow must be equal for all the objects, as the angle at which the source if light impacts them is the same.
For the person, we know that it is 5.8ft tall, and the shadow is 3.2ft long.
The ratio will be: 5.8ft/3.2ft = 1.8125
Now, if H is the height of the building, and the shadow that the building casts is 28ft, we must have:
H/28ft = 1.8125
Now we can solve this for H.
H = 1.8125*28ft = 50.75 ft
Then the height of the building is 50.75 feet.
Basic facts of trigonometry
sine, cosine, and tangent will give you the proportion of the sides of a right triangle in relation to an angle
sin x = opposite side/ hypotenuse
cosx= adjacent side/ hypotenuse
tan x= opposite side/ adjacent side
x is our angle
hypothenuse is the longest side of the right triangle
a good way to memorize this is SOH CAH TOA
now since your picture is not given, I will make some assumptions, such as the hypothenuse is the distance from the sun to the moon.
since you want to find the distance from the earth to the sun, and you know the distance from the earth to the moon, this means on a right triangle, you're trying to find the relationship between the adjacent, opposite side, and an angle
which means you will want to use tan x= opposite side/adjacent
now, i cant go any further because the location of the angle is important in the explanation, but short answer,
sin,cos,tan of an angle will give a proportion of the sides. if you know the measurement of a side, you can use this proportion in order to determine the corresponding measurement of the other side
Answer: The probability that both televisions work : 0.5329
The probability at least one of the two televisions does not work : 0.4671
Step-by-step explanation:
Given : The total number of television : 11
The number of defective television : 3
The probability that the television is defective : 
Binomial distribution formula :-
, where P(X) is the probability of getting success in x trials, p is the probability of success and n is the total trials.
If two televisions are randomly selected, then the probability that both televisions work:
The probability at least one of the two televisions does not work :
