What is the area of a quarter circle with a radius of 40 cm?

Answers

Answer 1

Answer:

A≈5026.55cm²

Brainliest please


Related Questions

someone help me with question 4 it’s not B!!!

Answers

the answer is D :) hope this helps!

Answer: A

Step-by-step explanation:

flip right side signs. then add across.

-12 + 4= -8

-10 - 2=-12

5+7=12

HURRY!!!!
What is the volume, in cubic inches, of the right rectangular prism with a length of 5 inches, a width of 8 inches, and a height of 20 inches

Answers

Answer:

800 cubic inches

Step-by-step explanation:

We will use the formula= V=lwh or Volume= length times width times height

so, Volume=5inches times 8 inches times 20 inches

so, volume= 5 times 8 times 20

=40 times 20

=800 cubic inches

Please mark me as a brainliest

Answer:

800

Step-by-step explanation:

There are 40 people in a choir.
Half of the people in the choir are women.
The number of women in the choir is 5 times the number of
men in the choir.
The rest of the people in the choir are children.
the number of
children in the
choir
:
the number of
men in the choir
n : 1
Work out the value of n.
You must show how you get your answer.
n =

Answers

9514 1404 393

Answer:

  n = 4

Step-by-step explanation:

Of the 40 people, half are women, so there are 20 women.

There are 5 times as many women as men, so 20/5 = 4 are men.

The remainder are children, so there are 20-4 = 16 children.

The ratio of children to men is ...

  children : men = 16 : 4 = 4 : 1 = n : 1 . . . . . . . . remove a factor of 4 from 16:4

The value of n is 4.

Complete the table. Then
identify the y-intercept
and the coordinate
where x = 1.
Consider the following
exponential equation.
Sketch the graph of the
exponential function.
y = 16(4x+1)
у
х
-2
-1
o
1
2
3
As x increases (x ).
у
As x decreases (x-co),
у

Answers

Answer:

y               x

-2           1/4

-1           1/2

0             1

1               2

2               4

Step-by-step explanation:

its easy algbra

doing it rn to

What is the length of side BC of the triangle?

Answers

Answer: -9

Step-by-step explanation: it is -9 because 3x-3 equals -9. I hope this will help!

Evaluate the expression for the given value of x.
6x + 7 for x = 2
The solution is

Answers

Answer:

6x + 7

6 * 2

12 + 7

=19

Step-by-step explanation:

3x-15+10m-2x ; x=5 and m=7
evaluate the expression for the given value of the variable.

Answers

3(5)-15+10(7)-2(5)
15-15+70-10
=60
The answer is 60

The Smith family went out for pizza. Their bill was $37.85. They left a tip of 15%. What was the approximate amount of the tip? pls help me!

Answers

Answer:

$5.7

Step-by-step explanation:

Given data

Bill= $37.85

Tip= 15%

Required

The amount of the tip

let us find 15% of $37.85

=15/100*37.85

=0.15*37.85

=$5.6775

Hence the amount of the tip is

=$5.7

Which rational number is NOT greater than point A?
Answers:
2 1/4
1.95
2.05
1 6/24

Answers

The answer is 21/4 u think

which number is a solution of the equation l8c sided 5 use the number line to help answer the question A2B 2.5 c5d 6.5 ​

Answers

Answer:

Can I see a picture?

Step-by-step explanation:

WILL MARK BRAINLEST
You want to estimate how many fish there are in a pond. Suppose you cature 145 fish, tag them, and throw them back into the pond. After a couple of days, you go back to the pond and capture 580 fish, of which 29 are tagged.

An estimate for the number of fish in the pond is
fish

Answers

Answer:

450fish estimate

Step-by-step explanation:

When the sum of a number and 14 is
divided by 3, the result is 4.

Answers

Answer:

it is 4.6 sorry girl

Step-by-step explanation:

Answer:

Step-by-step explanation:

4.6=4 3/5=23/5

y∝1√x
If
y=7 when x=64
find,
x when y=8

Answers

Answer:

uhm im really sorry about this but i really need points i would help but id get it wrong im bad aat math

Step-by-step explanation:

The Ratio of Girls to Boys:
The ratio of boys to girls in a summer camp is 2:5.
there are 90 girls in the camp. How many boys are in
the camp?

Answers

Answer:

36:90

Step-by-step explanation:

Boys: Girls

2     :   5

Question: How many boys are there if there are 90 girls?

The question is basically asking an equivalent ratio...

Let x be the number of boys.

[tex]\frac{2}{5}[/tex] = [tex]\frac{x}{90}[/tex]

90 ÷ 5 = 18

So, if you multiply 18 by the number of the previous girls (5) you get 90

Therefore, you multiply 18 with the previous no. of boys (2) and that would be you equivalent answer!

2×18= 36

Given that T=KX/Y,find the percentage increase in T when k, xandy all increase by 20%​

Answers

Answer:

The percentage increase in [tex]T[/tex] is 20 %.

Step-by-step explanation:

Let be [tex]T = \frac{k\cdot x}{y}[/tex], whose initial parameters are [tex]k = k_{o}[/tex], [tex]x = x_{o}[/tex] and [tex]y = y_{o}[/tex]. If these three parameters are increased by 20 %, then initial and final values of [tex]T[/tex] are, respectively:

Initial value

[tex]T_{i} = \frac{k_{o}\cdot x_{o}}{y_{o}}[/tex] (1)

Final value

[tex]T_{ii} = \frac{(1.2\cdot k_{o})\cdot (1.2\cdot x_{o})}{1.2\cdot y_{o}}[/tex]

[tex]T_{ii} = \frac{1.2\cdot k_{o}\cdot x_{o}}{y_{o}}[/tex] (2)

(1) in (2):

[tex]T_{ii} = 1.2\cdot T_{i}[/tex]

And the percentage increase in T is:

[tex]\%T = \frac{T_{ii}-T_{i}}{T_{i}}\times 100\,\%[/tex] (3)

[tex]\%T = \frac{1.2\cdot T_{i}-T_{i}}{T_{i}}\times 100\,\%[/tex]

[tex]\%T = 20\,\%[/tex]

The percentage increase in [tex]T[/tex] is 20 %.

Answer:

Step-by-step explanation:

Lets subsitute k, x and y as  100 to make it easier for us

So k = 100, x = 100, y = 100

Step 1 :-   T = kx/y

- T = 100 * 100 / 100 = 100

Step 2 :- Increase by 20% = 100 * 20% = 20,    100 + 20 = 120

Step 3 :- Percentage Increase = Increased value OVER original calue          MULTIPLIED by 100%

SO = ( 120 - 100 ) ,,,,   20/100 * 100% = 0.2* 100 = 20%

2. which formula should be used to find the area of the composite shape? A = 4(1/2Xbh) lw B. A=4bh+lw C. a=4bh+lw d. 2bh+bh Please select all that apply.

Answers

Answer: the answer is B and D I told the test

Step-by-step explanation:

suppose 11 out of 22 students said they were attending the football game. how many students out of 580 would you expect to attend the football game.

Answers

Answer: 290

Step-by-step explanation:

11/22 is half so the percentage would be 50%.

As we know it's a half you would just have to half or divide 580 by 2.

580÷2=290

Hope this helps :)

Please help i need the right answer fast will give brainliest​ if its correct answer

Answers

Answer:

8 X 5 = $40

Step-by-step explanation:

1. Los estudiantes de primer grado de la IE Miguel Grau son 184, si la relación entre los que usan anteojos y los que no usan es de 3/5. ¿Cuántos estudiantes usan anteojos?

Answers

Answer:

69 estudiantes.

Step-by-step explanation:

Sabemos que el número total de estudiantes en primer grado es 184.

También sabemos que la relación entre los que usan anteojos y los que no es 3/5.

Esta relación es igual al cociente entre el número de estudiantes que usan anteojos y el número de estudiantes que no usan anteojos.

Si definimos las variables:

A = número de estudiantes que usa anteojos

B = número de estudiantes que no usa anteojos.

Tenemos la relación:

A/B = 3/5

podemos reescribir como:

A = (3/5)*B

Y también sabemos que el número total de estudiantes es 184, entonces tendríamos que:

A + B = 184.

Podemos aislar B en esta segunda ecuación para luego reemplazarlo en la primera.

Aislando B obtenemos:

B = 184 - A

Si reemplazamos esto en la otra ecuación obtenemos:

A = (3/5)*B

A = (3/5)*(184 - A)

Ahora podemos resolver esto para A.

A = (3/5)*184 - (3/5)*A

A + (3/5)*A = (3/5)*184

A*(1 + 3/5) = (3/5)*184

A*(5/5 + 3/5) = (3/5)*184

A*(8/5) = (3/5)*184

A = (5/8)*(3/5)*184

A = 69

Podemos concluir que 69 estudiantes usan anteojos.

If the graph of the second equation in the system passes through the points (-12, 20) and
(4, 12), which statement is true?

Answers

answer: the system had no solution

PLEASE HELP ME EVERYONE HAS GOTTEN THIS WRONG ITS GONNA SUBMIT IN 15 MIN PLS HELP THANK YOU

Answers

Answer:

x = 8.66

Step-by-step explanation:

Apply pythagorean theorem to find the value of x.

Thus:

x² = 14² - 11²

x² = 75

x = √75

x = 8.66025404

x = 8.66 (nearest hundredth)

Quadrilateral ABCD at A(-2,2),B(-2,4),C(2,4), and D(2,2). The quadrilateral is then transformed using the rule(x-2,y+8) to form the image A'B'C'D'. What are the new coordinates of A',B',C', and D'? Describe what characteristics you would find if the corresponding vertices were connected with line segments.

Answers

A(-4,10), B(-4,12), C(0,12), D(0,10). The shape will be exactly the same, just translated.

What value of y makes the equation 3y+ 9 = 36 true?

Answers

Answer:

y=9

Step-by-step explanation:

help me please thank you

Answers

Answer:

3/2 and 3/4 are both not multiples of 1/3.

Step-by-step explanation:

They have to have 3 as the denominator (or the number below the line) to be a multiple of 1/3. For example: 1/3, 2/3, 3/3.

Hope you understand that! :)

Answer:

Explanation Below :)

Step-by-step explanation:

3/2 & 3/4 are mistakes

When finding three multiples of a number that is a fraction, the denominator (bottom number) always stays the same. So, 3/2 & 3/4 are not multiples of 1/3.

The diagonals of square ABCD intersect at point E. If BE = 2x + 1, and AC = 3(6x - 4), find BD.
1
3
6
9

Answers

Answer:

Step-by-step explanation:

Answer:

It is 6

Step-by-step explanation:

I did the problem already

1. Albert Einstein is driving down a country road at the speed of light. Just kidding. He's
actually going an average of 70 miles an hour. He started driving at 3 PM exactly and
arrived at his destination at 5:27 PM. If we need to calculate the distance from his starting
point to his destination, our answer will be in which units?
A. Miles
B. Hours
C. Miles per hour
D. Kilometers

Answers

Answer:

C. Miles per hour

Step-by-step explanation:

Answer:

c. miles per hour

Step-by-step explanation:

because he was driving in miles an hour

find the y - intercept of the graph ​

Answers

Answer:

Step-by-step explanation:

yes that is correct!-2

In degrees, what is the measure of hmp

Please help, this is timed!
Please and thank you :)

Answers

56* your welcome!! This is such a hard lesson to learn!

in the basketball game rachael scored 6 points less than twice the number of points Trina scored. Trina scored 9 points how many points did rachael score

Answers

9x2=18-6 which is 12

Pls answer a and b I will give brainliest answer

Answers

Answer:

a. True, b. y = (-1/2)x + 8

Step-by-step explanation:

Because the graph is a straight line, that means that the graph is in fact proportional. For the equation, take the form y = mx+b. Plug in the slope, which is -1/2, and the y-intercept, which is 8, which would give you the equation y = (-1/2)x + 8.

Answer:

1) not proportional - not starting from origin

2) (2,8) - i did it in coordinates

have a great day

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