All categories

3 years ago

Does anyone know the answer?

Mathematics

1 answer:

Hunter-Best [27]3 years ago

8 0

Answer:

Surface Area - 122

Step-by-step explanation:

You might be interested in

Whats is the square root of 2 multiply by one over the square root of 2

Ket [755]

When ANY number is multiplied by its own reciprocal, the product is ' 1 '.

8 0

4 years ago

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

3 years ago

Uncle Joe is cutting boards for bookshelves. If he begins with 9 feet of wood, how many shelves will he cut if each one is 1 1/2

kherson [118]

To get the answer, you divide the length of the board by the size of the pieces wanted, so the equation you get is

9/1.5 = 6

So you can get six 1.5in shelves from a 9ft board

6 0

3 years ago

Helpppppppppppppppppppppppppppppppppppppp

Dmitry_Shevchenko [17]

Answer: 403

find the absolute value of -272, which is 272.

add 272 to the 131

that equals the height of 403 ft

4 0

3 years ago

Read 2 more answers

Does someone understand this ?

Nimfa-mama [501]

<h3>ANSWERS:</h3>

1. Line XY

2. Line XZ

3. (opposite angle): IU

(adjacent angle): IH

Question 1:

For the first problem, you are finding the opposite side to ∠YZX, by knowing that Z is the center of this angle, it is rather simple to solve.

Just draw your line through the middle of the angle through the triangle until you hit the side on the other side.

When doing this on question 1, you would pass between the angles of ∠X and ∠Y, <u><em>therefore you are passing through line XY.</em></u>

Question 2:

For the next problem, we need the adjacent angle to ∠YZX, in other words the one other line which is not the opposite angle.

By doing that we can rule it down to lines XZ and YZ, but it cannot be angle YZ because that is the hypotenuse of the triangle (the longest side) and cannot ever be the opposite or adjacent lines.

<u><em>So, your answer for question 2 would be line XZ.</em></u>

Question 3:

For the last problem, we need to find both the opposite and adjacent sides of the triangle according to angle ∠IHU.

So, firstly, do that finger through the center of the angle trick for the opposite angle and you would get line IU.

Then for the adjacent angle, find the hypotenuse and choose the one other angle that you haven't chosen as your opposite angle.

By doing that, you would get line IH.

3 0

4 years ago