Answer:
Step-by-step explanation:
Volume of a cone=1540
, Radius=7cm.
The height of a cone=h
When we need to find the height of a cone, we can use the formula of the volume of a cone, which is 
to find the height of a cone.
Put the pi value=22/7 and the value of radius which is 7 cm into the formula.
Move 
to another side. 1540 divided by to calculate what is the value of h, h is the height of a cone. Like this.
Rearrange the h.
I hope you will understand my solution and explanation. If you still cannot get the point, you can ask me anytime! Thank you!
Answer:
Step-by-step explanation:
step 1
Find the lateral area
we know that
The lateral surface of a square pyramid is equal to the area of its four lateral triangular faces
so
![LA=4[\frac{1}{2}bh]](https://tex.z-dn.net/?f=LA%3D4%5B%5Cfrac%7B1%7D%7B2%7Dbh%5D)
where
----> slant height
substitute the values
![LA=4[\frac{1}{2}(25)(18)]=900\ m^{2}](https://tex.z-dn.net/?f=LA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%2825%29%2818%29%5D%3D900%5C%20m%5E%7B2%7D)
step 2
Find the cost
Let the require value be x, then
P(z > x) = 0.025
1 - P(z < x) = 0.025
P(z < x) = 1 - 0.025 = 0.975
P(z < x) = P(z < 1.96)
x = 1.96
Therefore, <span>the positive critical value that corresponds to a right tail area of 0.025</span> is 1.96
I believe that the answer youre looking for should be about 2.84/4
ANSWER
EXPLANATION
The given expression is
Multiply by the reciprocal of the second function
Rewrite the second numerator as difference of two squares.
Factor
Cancel out the common factors.
Simplify
