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SOVA2 [1]
4 years ago
14

Find the volume of the solid whose base is the circle x^2+y^2=64 and the cross sections perpendicular to the x-axis are triangle

s whose height and base are equal.
Mathematics
1 answer:
djyliett [7]4 years ago
3 0
1) x² + y² = 64 is the EQUAION of a cercle with a radius R = √64 =8

2) The cross section is a triangle with H = BASE.
Since R = 8 that means the Base B= 16 and also the height H =16
This  solid is then a regular cone and its Volume value is
V = πR².H
V π(8)².(16) = 2014π units³ or ≈ 3217 units³
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Answer:

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3 years ago
G(n) = 4n+5 f(n)= n^3+3n^2 find (g+f)(n)
Tpy6a [65]

Given:

The two functions are:

g(n)=4n+5

f(n)=n^3+3n^2

To find:

The function (f+g)(n).

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f(n)=n^3+3n^2

Now,

(f+g)(n)=f(n)+g(n)

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7 0
3 years ago
AT&T charges $350 to get a plan with them, plus $60 per month. T-Mobile charges a $275 initial fee, plus $80 per month. Writ
larisa86 [58]

Given :

AT&T charges $350 to get a plan with them, plus $60 per month.

T-Mobile charges a $275 initial fee, plus $80 per month.

To Find :

Write an equation or inequality that can be used to determine the number of months it would take for T-Mobile to cost the same or more than AT&T.

Solution :

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5 0
4 years ago
In a certain class 40% of the students are girls; and 20% of the girls wear glasses, what percentage of the children in the clas
dem82 [27]
<span>For example
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7 0
3 years ago
110 mi/hr = how many mi/day
vredina [299]

Answer:

2640

Step-by-step explanation:

110mi/hr = Xmi/day

24hr = day

110mi x 24hr = 2640mi/day

8 0
3 years ago
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