Answer:
y=x2-X-5 is zero of quadratic equation
The answer would be a equilateral
You need to calculate the height of the cone which would be OV, not VB
Using Pythagorean theorem:
OV = sqrt(37^2-12^2)
OV = 35
Now you have the height to solve everything.
This is a semi circle so volume and surface area would be 1/2 of a full cone.
A) v = 1/2 x pi x r^2 x h/3
V = 1/2 x pi x 12^2 x 35/3
V = 1/2 x pi x 144 x 35/3
V = 840pi
B) sa =1/2 x pi x r(r + sqrt(h^2+r^2))
Sa = 1/2 x pi x 12(12+ sqrt(35^2+12^2))
Sa= 923.63 round as needed.
C) volume of hemisphere with 4cm diameter:
2/3 x pi x 2^3 = 5.33pi
Divide volume of semi cone by volume of hemisphere:
840pi/5.33pi = 157.5
Answer:
Ella sold the each print for the cost of $57.21.
Step-by-step explanation:
The total number of prints sold at gallery = 52
Total amount it is sold for = $2,975
Noe, If 52 prints are sold for $2,975.
⇒
or, Cost of 1 print = $57.21
So, Ella sold the each print for the cost of $57.21.
The probability that any given car will have a brake failure if it is make a is 0.0065%
<h3>How to determine the probability?</h3>
The complete question is added as an attachment
From the table in the question, we have:
P(Brake failure|car a) = 0.0065%
The above represents the required conditional probability
Hence, the probability that any given car will have a brake failure if it is make a is 0.0065%
Read more about probability at:
brainly.com/question/2479210
#SPJ1