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3 years ago

I need help fast please

Mathematics

1 answer:

musickatia [10]3 years ago

8 0

Answer:

triangle, circle

Step-by-step explanation:

I put a link at the bottom to show you how i got my answer

The vertical cross-section of a cone is a triangle. The horizontal cross-section is a circle

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What is the area of the composite figure? (use 3.14 for pi). Explain how you arrived at your answer. Please round to the nearest

maksim [4K]

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

Step-by-step explanation:

The given is,

Given diagram is combination of Rectangle and Semi circle.

Step:1

Res the attachment,

Area of given diagram = Area of A + Area of B..............(1)

Step:2

For A,

The A section in the given diagram is semi circle,

Diameter of semi circle = Total distance - ( 2+3)

( ∵ 2, 3 are top distance in the given diagram)

$= 10 - 5$

Diameter, d = 5 cm

Radius, $r = \frac{d}{2}$

$r = \frac{5}{2}$

r = 2.5 cm

Area, $A_{A} = \frac {\pi r^{2} }{2}$ ........................(2)

$A_{A} = \frac {\pi (2.5)^{2} }{2}$

$= \frac {\pi ( 6.25) }{2}$

$= \frac{19.63}{2}$

$A_{A} = 9.8174 cm^{2}$

Step:3

For B,

Area of rectangle is,

$A_{B} =lb$ .....................(3)

Where, l - Length = 10 cm

b - Width = 2 cm

Equation (3) become,

$= (10)(2)$

$= 20$

Area of B, $A_{B}$ = 20 $cm^{2}$

Step:4

From the equation (1),

Area of given diagram = 20+ 9.81747

Area = 29.817 square centimeters

Result:

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

5 0

3 years ago

Which of the following is an irrational number

salantis [7]

Answer:

Step-by-step explanation:

Pi is a never ending number.

8 0

3 years ago

Read 2 more answers

On the map, Winton ,California is located at(“ (2,10.5) in Lake Tahoe is located at (14,16). Each unit on the map equals 16.5 mi

garik1379 [7]

Answer:

The distance between the two

points on the map

is 225 units

Step-by-step explanation:

Firstly, we need to calculate the distance in units between the two locations on the map

What we have to use here is the distance formula

Mathematically, we have this as;

D = √(x2-x1)^2 + (y2-y1)^2

(x1,y1) = (2,10.5)

(x2,y2) = (14,16)

we have the distance as follows;

D = √(14-2)^2 + (16-10.5)^2

D = √(12^2 + 6.5^2)

D = √(186.25)

D = 13.65 units

now, from the question, 1 unit on the map represents a distance of 16.5 miles

thus, a distance of 13.65 units will be;

16.5 * 13.65 = 225.225

= 225 units

6 0

3 years ago

What is the absolute value of 5.23

nekit [7.7K]

It's just the value of itself
so it's 5.23

6 0

3 years ago

111 Thirty dollars is to be divided among three girls and two boys so that each of the girls receives twice as much as each of t

julia-pushkina [17]

Answer:

Each boy receive $3.75 and Each girl receive $7.5

Step-by-step explanation:

Given : Thirty dollars is to be divided among three girls and two boys so that each of the girls receives twice as much as each of the boys.

To Find: How much does each receive?

Solution :

Let each boy gets $x

Since we are given that each of the girls receives twice as much as each of the boys

So, each girl receive amount = 2x

Since there are 3 girls .

So, 3 girls received the amount = 3*(2x)=6x

Now each boy gets x amount

So, 2 boys get amount = 2*x =2x

Since thirty dollars are divided among them .

So, $6x+2x=30$

$8x=30$

$x=\frac{30}{8}$

$x=3.75$

Thus each boy gets $3.75

Each girl receive amount = 2x = 2*3.75= $7.5

Hence Each boy receive $3.75 and Each girl receive $7.5

7 0

3 years ago