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Daniel [21]
3 years ago
12

Plzz look into the question in the attachements

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Given : Diameter of the right circular cone ==> 8 cm

It means : The Radius of the right circular cone is 4 cm (as Radius is half of the Diameter)

Given : Volume of the right circular cone ==> 48π cm³

We know that :

\bigstar \ \ \boxed{\textsf{Volume of a right circular cone is given by : $\pi r^2\dfrac{h}{3}$}}

where : r is the radius of the circular cross-section.

             h is the height of the right circular cone.

Substituting the respective values in the formula, we get :

\mathsf{\implies \pi \times (4)^2 \times \dfrac{h}{3} = 48\pi}

\mathsf{\implies 16 \times \dfrac{h}{3} = 48}

\mathsf{\implies \dfrac{h}{3} = 3}

\implies \boxed{\mathsf{h= 9 \ cm}}

<u>Answer</u> : Height of the given right circular cone is 9 cm

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Answer:

Hard to tell based on what you posted

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a slope is negative if it is going down left to right

4 0
3 years ago
Prove that |a| &lt; b if and only if -b &lt; a &lt; b
asambeis [7]

Answer:

Since,

|x|=\left\{\begin{matrix}x &\text{ if } x \geq 0 \\ -x &\text{ if } x < 0\end{matrix}\right.

Here, the given equation is,

|a| < b

Case 1 : if a ≥ 0,

|a| < b ⇒ a < b

Case 2 : If a < 0,

|a| < b ⇒ -a < b ⇒ a > - b

( Since, when we multiply both sides of inequality by negative number then the sign of inequality is reversed. )

|a| < b ⇒ a < b or a > - b ⇒ -b < a < b

Conversely,

If -b < a < b

⇒ a < b or a > - b

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Hence, proved..

7 0
4 years ago
Plz help me with this
Orlov [11]
1/4^-2 can also be written as 4^2 = 16
4 0
4 years ago
Read 2 more answers
Find the arc length of a central angle of 7pi/3 in a circle whose radius is 3 inches
Arte-miy333 [17]
We know that
circumference=2*pi*r
for r=3 in
circumference=2*pi*3------> 18.84 in

if 2*pi radians (full circle) has a length of--------> 18.84 in
 7*pi/3 radians-----------------> x
x=7*pi/3*18.84/(2*pi)-------> x=21.98 in

the answer is
21.98 in
7 0
3 years ago
last week Margie sold 5 more papers on sunday then on saturday . she sold a total of 73 papers for the two days how many papers
levacccp [35]
39, you take 5 and subtract it from 73 then divide your answer by two and the add the five you subtracted in the begining 

73        68/2 is 34 
-5        34+5=39
-----
68

6 0
4 years ago
Read 2 more answers
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