help me i will give 10 points

Let's break this up:

Radius: 19

Diameter: 38

Circumference: 119.4

So...

The area of a circle with radius 19 is 1134

A = πr2 = π(d

2

)2 A = C2

4π

π = 3.1415

A = area

C = circumference or perimeter

r = radius, d = diameter

SOLUTION STEPS:

Area of a circle in terms of radius:

Area = π·r2 = 3.14·192 = 1134 square cm(*)

Area of a circle in terms of diameter:

Area = π·(d

2

)2 = 3.14·(38

2

)2 = 3.14·(19)2 = 1134 square cm(*)

Area of a circle in terms of circumference:

Area = C2

4π

= 119.42

4π

= 14256.36

(4·3.14)

= 14256.36

12.56

= 1134 square cm(*)

(*) 1134.1149479459 cm, exactly or limited to the precision of this calculator (13 decimal places).

Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.

Result in other units of area:

A circle of radius = 19 or diameter = 38 or circumference = 119.4 cm has an area of:

1.134 × 10-7 square kilometers (km²)

0.1134 square meters (m²)

1134 square centimeters (cm²)

1.134 × 105 square millimeters (mm²)

4.3784 × 10-8 square miles (mi²)

0.135625 square yards (yd²)

1.22063 square feet (ft²)

175.77 square inches (in²)

Yes the Frist question is 15 students

the second question is 5 well I mean if you do it by Khan academy

the third one is well three dozen eggs are cracked, so probably 12?

Answer:

p = 5

hope it helps

The value of x is 50 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (B) is correct.

It is defined as the four-sided polygon in geometry having four edges and four corners and two pairs of congruent sides.

We have:

In the diagram below, OP is circumscribed about quadrilateral ABCD.

In a quadrilateral, the sum of the opposite angles is equal to 180 degree

x + 20 + 110 = 180

x + 130 = 180

x = 50

Thus, the value of x is 50 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (B) is correct.

Learn more about the quadrilateral here:

brainly.com/question/6321910

#SPJ2

Answer:

[tex]tan(30) = \frac{A}{B}[/tex]

Step-by-step explanation:

Given

The attached triangle

Required

Find tan(30)

Let the side opposite 30 degrees be A and the side adjacent 30 degrees be B

So [using tangent identity]:

[tex]tan(\theta) = \frac{Opposite}{Adjacent}[/tex]

This gives:

[tex]tan(30) = \frac{A}{B}[/tex]

Answer:

Step-by-step explanation:

BCDE is rotated 180° counterclockwise to form JKLM.

JKLM is rotated 180° clockwise to form BCDE

JKLM is rotated 180° counterclockwise to form BCDE.

Answer:b c d

Step-by-step explanation:

i failed so you can sucseed

Answer:

cats rule dogs drool is correct ty<3

Step-by-step explanation:

Answer:

cats rule dogs drool

Step-by-step explanation:

just did it edge23

Answer:

b divide both sides by 6

Step-by-step explanation:

6a = 72 if you divided each side by 6 you will get

a = 12 which would bring you to the actual answer.

Answer:

the answer is d

Step-by-step explanation:

Answer:

same, equal measure

Hope it helps

Please mark me as brainliest

Thank you

Answer:21

Step-by-step explanation:

cu   u=-(5-12)=-7   c=-3    -7(-3)=21

Answer:

21

Step-by-step explanation:

Answer:

Step-by-step explanation:

The -4 makes the waves taller (Amplitude 4), and the negitive flips over x-axis.

In (3x-pi) The three compresses horizontally making the waves tighter. The -pi shifts the funtion pi to the right.

The +5 shifts up five.

#3 maybe be wrong, sorry if it is

Answer:

no, because the pythagorean theorem doesnt work out with those numbers.

Step-by-step explanation:

since (3^2)+(6^2) isnt 8^2

Answer:

Axis of symmetry: [tex]-\frac{3}{7}[/tex]

The y-intercept: y= (0, -8)

The vertex is: [tex]( -\frac{3}{7} , -\frac{65}{7} )[/tex]

Step-by-step explanation:

My work is shown in the images... :)

I hope I helped, and I always appreciate brainliest!!!  :)

Answer:

0

Step-by-step explanation:

6 - 3x = 4 - x - 3 - 2x

6 - 3x = -3x + 1

Add 3x to both sides.

6 = 1

Since the last equation, 6 = 1, is false after doing legal steps, that means that the equation is false and has no solution.

Answer: 0

Answer:

All i have is the area which is 4.5·π cm² + 18 cm² =

Step-by-step explanation:

Answer:

What is the perimeter

angles sum: 180(6-2) = 720

50 + 37 + 42 = 129

129 + 5x + 7x - 1 + 3x + 40 = 720

15x + 168 = 720

15x = 552

x = 36.8

check:

129 + 5(36.8) + (3(36.8) + 40) + (7(36.8) - 1) = 720

Correct answer??

180-50 = 130

180-37 = 143

180-42 = 138

Known internal angles:

130 + 143 + 138 = 411

15x + 39 + 411 = 720

15x = 270

x = 18

Answer:

Your cousin

Step-by-step explanation:

Kin is your family/related family

Answer:

6

Step-by-step explanation:

10-4 is 6 and they are on the same x axis

Answer:

3v=70

divide both side by 3

=70/3 or ~23.33333

Answer:

∠BDC=43°

Step-by-step explanation:

Since ABCD is a rectangle, ∠ADC=90

∠ADC=∠BDC+∠ADB

90=(7x+1)+(9x-7)

90=16x-6

16x=96

x=6

∠BDC=7x+1

=7(6)+1

=42+1=43

Answer:

y+8=-2(x-4)

Step-by-step explanation:

point-slope form is y-y1=m(x-x1) where m is the slope, and (x1,y1) is a point.

We are given all of that information:

slope: -2

point: (4,-8)

substitute the numbers into the equation

y--8=-2(x-4)

we can make --8 to positive 8

so:

y+8=-2(x-4)

this is the equation in point-slope form

Hope this helps!

2x+y=9

3x+5y=19

I will do this problem in 2 ways. I.)Substitution II.)Elimination

Solution I.) Substitution

We can subtract 2x from both sides in the first equation.

y=9-2x

Now we can substitute the y in the second equation with 9-2x

3x+5(9-2x)=19

-7x+45=19

-7x=-26

x=26/7

y=9-2(26/7)=11/7

Solution II.)Elimination

We can multiply both side of first equation by 5 to get a 5y in both equations.

10x+5y=45

Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.

(10x+5y)-(3x+5y)=45-19

7x=26

x=26/7

2*26/7+y=9

y=11/7

Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.

Answer:

0.55

Step-by-step explanation:

The numerator of the fraction with a denominator of 100 is the number you put on the right of the decimal pt.

Answer:

0.55

Step-by-step explanation:

55/100 = 0.55

You just move decimal two places to the right. Hope this helps, thank you :) !!

Answer:

do you have to add the numbers together or multiply

Answer:

Solution given:

laternal section area =perimeter of triangle×length

=(15+8+17)×9=360mm²

Answer:

Question unclear.

If the question was about the perimeter of the rectangle, it is calculated as:

= (Length * 2) + (Height * 2)

= (11 * 2) + (6 * 2)

= 22 + 12

= 34 cm

If the question was bout Area, the area is:

= Length * width

= 11 * 6

= 66 cm²

Answer:

b is 9

Step-by-step explanation:

okay

please mark me as brainlist and be happy also add me on sñap

arshad2623f

i will be happy <3

Answer:

its 9 this has to be at least 20 characters