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2 years ago

Select the correct answer.

Mathematics

1 answer:

shutvik [7]2 years ago

3 0

B is the answer but check if u can simplify it

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Let V be the volume of a right circular cone of height h=14 whose base is a circle of radius R=2. An illustration a right circul

Alla [95]

Answer:

The area of a horizontal cross section at a height is $\pi\times(2-\dfrac{y}{7})^2$

Step-by-step explanation:

Given that,

Height = 14 m

Radius = 2 m

Let V be the volume of a right circular cone

We need to calculate the value of R

Using given data

$\dfrac{h}{r}=\dfrac{h-y}{R}$

Put the value into the formula

$\dfrac{14}{2}=\dfrac{14-y}{R}$

$7R=14-y$

$R=2-\dfrac{y}{7}$

We need to calculate the area of a horizontal cross section at a height y

Using formula of area

$A=\pi R^2$

Put the value into the formula

$A=\pi\times(2-\dfrac{y}{7})^2$

Hence, The area of a horizontal cross section at a height is $\pi\times(2-\dfrac{y}{7})^2$

3 0

2 years ago

What is the reciprocal/multiplicative inverse of negative 3 over 11?

Allisa [31]

Im not sure but wouldnt it be 11 over negative 3?

7 0

3 years ago

32% of what number is 56

attashe74 [19]

Let 32% of x = 56

32%*x = 56
32/100 *x = 56
x = 56*100/32
x = 5600/32 = 175

hence, 32% of 175 is 56.

5 0

2 years ago

50(x-60) help me or i'll FAIL

jok3333 [9.3K]

Answer:

50x - 3000

Step-by-step explanation:

Use the distributive property

50x - 3000

6 0

2 years ago

HELP ME JDJDJDJDJDJDJDJDJD

umka2103 [35]

..............................................

4 0

2 years ago

Read 2 more answers