Find the area of a circle with radius,
r
= 40cm.
Give your answer rounded to 3 SF

Answers

Answer 1
Area of circle = pi x r^2
= 22/7 x 40^2
= 5028.57
= 5030cm^2 (3 SF)

Related Questions

Find each sum. (3n2 – 5n + 6) + (–8n2 – 3n – 2) = –11n2 – 8n – 4 –11n2 – 2n + 4 –5n2 – 8n + 4 –5n2 – 2n – 4

Answers

Answer:

-5n² - 8n + 4

Step-by-step explanation:

Given the expression

(3n²– 5n + 6) + (–8n²– 3n – 2)

Expand the bracket

3n²– 5n + 6 –8n²– 3n – 2

Collect the like terms

3n²-8n²-5n– 3n – 2+6

-5n² - 8n + 4

This gives the required result

C: -5n^2 - 8n + 4

The answer to the second question is 4, 11, and 5.

Helppppppp what's the answer??????

Answers

Find the axis of symmetry.
x= 1/2

list some things I could spend a million dollars on.. doing a math worksheet and I can’t think of things.. help!

Answers

Answer:

A car, college, and house, bills. and Airplane? would those work?

Step-by-step explanation:

A car, a plane, a boat, a house.

Which is the equation of a line that has a slope of 3 and passes through point
(-3,-1)2
A. y=-3x+1
B. y--3x+3
C. y = 2 x -
D. y-22 8x-3

Answers

Answer:

y = -2/3x - 3

Step-by-step explanation:

y = -2/3x + b

-1 = -2/3(-3) + b

-1 = 2 + b

-3 = b

y = -2/3x - 3

Curtis mowed 9 of the yard's 25 grassy patches. Use a proportion to show how many grassy patches he would probably mow out of 60 total.​

Answers

Answer:

22 yards

Step-by-step explanation:

9/25 = x/60

cross-multiply:

25x = 540

x = 21.6

is it possible to construct a triangle with the given lengths? 17, 37, 53

Answers

Answer:

Yes

Step-by-step explanation:

In any triangle, the sum of any two sides must be larger than the third side. To test this, we only actually need to pick the two shorter sides. In this case, the following inequality is true:

[tex]17+37>53,\\54>53,\\\text{True}\:\checkmark[/tex]

what is 457×(783×635)​

Answers

Answer:

227222685 i cant tell if u want me to multiply them all or solve for X

Step-by-step explanation:

The answer is 227,222,685


What is the value of 1,608 divided by 10 cubed

Answers

Answer:

16 2/25

Step-by-step explanation:

1608 / 10^2

1608/100

16 8/100

16 4/50

16 2/25

Answer:

1.608

Step-by-step explanation:

1608 ÷ 1000 = 1.608

Which expression matches the graph?

A. n< 1
B. n> 1
OC. ns1
D. n=1
Ε. η Σ1

Answers

Answer:

c.

Step-by-step explanation:

[tex]n \leqslant 1[/tex]

Tim asked 128 people whether or not they eat a healthy diet and whether they get regular exercise. The result of Tim's survey are shown in the Venn diagram below. One number is missing from the diagram.

Answers

You are reading an article in your school newspaper

A train travels a total of 67 km at a constant speed of 110 km/h.
How long is its journey? Give your answer in minutes and seconds, to the nearest second.

Answers

Answer:

36 m 32 s

Step-by-step explanation:

67 /110 = 0.609 hour

0.609 × 60 minutes = 36.54 minutes

36 minutes + 0.54×60 second

= 36 minutes 32 seconds

Answer:

36 mins 32 secs

Step-by-step explanation:

y= 4x + 2
y= 4x + 6
How many Solutions

Answers

The correct answer is no solutions because both equations are parallel and therefore do not intersect
So no solution

the difference between two numbers is 14. if 1/3 of the larger number is subtracted from the smaller number ,the result equals 1/10 of their sum. find both numbers

Step by step please

Answers

Answer:

Step-by-step explanation:

x-y=14

x-1/3y=1/10

-y=14-x

y=-14+x

take out the factors

x-10/30y=3/30

30x-10y=3

substitute

30x-10(-14+x)=3

30x+140-10x=3-140

20x/20=-137/20

x=-6.85

y=-14+(-6.85)

y=-20.85

The two numbers are 143/20 and 423/20.

What is a linear system of equations?

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

Given that, the difference between two numbers is 14.

Let the smaller number be x and the larger number be y.

Here, y-x=14 ------------(i)

If 1/3 of the larger number is subtracted from the smaller number ,the result equals 1/10.

1/3 of larger number is 1/3 y

x-y/3 =1/10 ------------(ii)

From equation (i), substitute y=14+x in equation (ii), we get

x-(14+x)/3 =1/10

10(3x-14-x)=3

30x-140-10=3

20x-140=3

20x=143

x=143/20

Substitute x=143/20 in equation (i), we get

y-143/20=14

y=14+143/20

y=(280+143)/20

y=423/20

Therefore, the two numbers are 143/20 and 423/20.

To learn more about the linear system of an equations visit:

https://brainly.com/question/27664510.

#SPJ3

Tahari is shopping for a new car. She is making her decision based on brand, color, and style. She can choose from 4 brands, 5 colors, and 3 styles. First, Tahari chooses the color. Which explains the number of options that she has left after she chooses the color? Tahari has 60 options left because Tahari has 12 options left because she has options left. Tahari has 12 options left because . Tahari has 7 options left because she has options left.

Answers

Answer:After choosing the color she still has the choices of brands and style so:

Tahari has 4*3=12 options left.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

right on edge

Find the surface area of the prism. PLEASE HELP IT DUE IN 10 mins I Will mark U AS BRAINLY IF u answer CORRECTLY

Answers

Answer:

Hello! answer: 17.6

Hope that helps!

HELP ILL GIVE BRAINLIEST

Answers

Answer:

in fractions: 0, 1/5, 2/5, 3/5, 4/5, 1 (5/5)

in percents: 0%, 20%, 40%, 60%, 80%, 100%

Step-by-step explanation:

all the fractions line up with the percents

Answer:

This is the model i made

What is the measure of x?

Answers

Answer:

105+54=x

Step-by-step explanation:


DONT SKIP . URGENT WILL GIVE BRAINLIEST.
Question 8 of 10
What is the distance between points D and E?
6
4
3
2
D(42)
!
S4 3 2
-1
-1
3 4 5
E (42)
- یہ دن من
4
-5
O A. 5 units
OB. 4 units
O C. 2 units
O D. 6 units

Answers

B. 4 units

To find this you add 2 and -2 as if -2 was positive. Since the x-axis is the same,4, you don't have to do anything.

if r 1 and 0 = 7pi/6 what is the approximate arc length

Answers

Arc length = (r)(0)
= (1)(7pi/6)
= 3.7 unit
3.7 should be your answer hope this helps

help plssssss!!!!!!!

Answers

For the first question asking about the slope 3/4 and y intercept -2 would be (y=0.75x-2) because 3/4=0.75 and the y intercept -2 is b and you’re just placing it into the formula y=Mx+b m=slope b=y intercept.

The square root 24 is between which two numbers on the number line
A)
1 and 2
B)
2 and 3
C)
3 and 4
D)
4 and 5

Answers

Answer:

Step-by-step explanation:

4²=16

5²=25

so √24 is between 4 and 5.

4 and 5. i need 20 letters so ignore this
yes

Construct a street that has an x-intercept of 6 and a slope of 4. what is the y-intercept?

Answers

Answer: CAN U MARK BRAINLIST!!!!! You've probably already seen the basic method for graphing straight lines; namely, make a T-chart, plot some points, put your ruler against them, and draw the line. But the "nice" form of a straight line's equation (being the slope-intercept form, y = mx + b) can make graphing even simpler and faster.

Given two points (x1, y1) and (x2, y2), the formula for the slope of the straight line going through these two points is:

\small{ m = \dfrac{y_1 - y_2}{x_1 - x_2} }m=  

x  

1

​  

−x  

2

​  

 

y  

1

​  

−y  

2

​  

 

​  

 

 

MathHelp.com

Using Slope and Y-Intercept to Graph Lines on MathHelp.com

Slope-Intercept Form

...where the subscripts merely indicate that we have a "first" point (whose coordinates are subscripted with a "1") and a "second" point (whose coordinates are subscripted with a "2"); that is, the subscripts indicate nothing more than the fact that we have two points that we're working with. Note that which point we pick as the "first" point is irrelevant; if we pick the other point to be "first", the subtractions will be reversed, but we'll still get the exact same value for the slope:

\small{ m = \dfrac{y_2 - y_1}{x_2 - x_1} }m=  

x  

2

​  

−x  

1

​  

 

y  

2

​  

Evaluate the expression when a = -4 and x=4.
4x-a

Answers

Answer: 20

Step-by-step explanation:  Substitute -4 in for a and 4 in for x.  Then, simplify.  

4(4) - (-4)

16 + 4

20

Hope this helped.  Please mark brainliest if correct!

Answer:

4(4)-(-4)

16+4

20

Step-by-step explanation:

When you put x is 4 in the first term u will get 16 and when you add two negatives u will get a positive, hence positive 4, that is 16+4

20

Show all the steps that you used to solve this problem.
Write an inequality for the graph.​

Answers

Answer:

h(x) ≥ |x - 5| +1

Step-by-step explanation:

Given graph represents an absolute function (parent function)

f(x) = |x|

Since, graph of the function 'f' has been shifted 5 units to the right new function will be,

g(x) = f(x - 5)

g(x) = |x - 5|

Again function 'g' is shifted 1 unit upwards along the y-axis then the new function will be,

h(x) = g(x) + 1

h(x) = |x - 5| + 1

There is a shaded region representing the solution area lying above the intersecting dark lines,

Therefore, solution region will be re[presented by the inequality,

h(x) ≥ |x - 5| + 1

I need help plsss help

Answers

Answer:

Triangle: True

Parallelogram: False, area is 63cm^2

Trapezoid: True

Step-by-step explanation:

Use area calculators on the internet to find the area of shapes.

Help please one question

Answers

X=6 and y=2 all you have to do is plug x that is given into the equation for y. After you have initially solved for y ,which is 2 , you plug that into the equation as well which them comes to the answer for x

help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:Jonathan is incorrect.

Step-by-step explanation:A quadrilateral has 4 straight sides is a four sided shape which means 4 straight sides.The image you have showed me does not have 4 straight sides nor 4 edges nor 4 verticals.So Jonathan is incorrect.


Callie wrote this number to show the change in volume of a water cooler after practice. -9/10
What’s equivalent to what Callie wrote

Answers

B) -9/10

ONLY one value must have the negative sign, otherwise it will be a positive value

The correct option is option B that is [tex]\frac{-9}{10}[/tex] is the same number as Callie has written to show the change in volume.

What is a fraction ?

A fraction is used to represent a portion or component of a whole. The numerator and denominator are its two parts.

It is given that Callie wrote a number to show the change in volume of a water cooler after practice which is :

= [tex]\frac{-9}{10}[/tex]

Let's check from the given options which is the correct one.

A)

- [tex]\frac{9}{-10}[/tex]

if we multiply and divide by -1 then we find that the given fraction is equal to :

= [tex]\frac{9}{10}[/tex]

This is not equal to what Callie has written.

B)

[tex]\frac{-9}{10}[/tex] is the same number as Callie has written to show the change in volume. So , this is a correct option.

C)

[tex]\frac{-9}{-10}[/tex] will be equal to [tex]\frac{9}{10}[/tex]. This is because there is negative sign in both numerator and denominator of the fraction , and they will get cancelled. So, this option is not correct.

D)

[tex]\frac{9}{10}[/tex] is not equal to [tex]\frac{-9}{10}[/tex]. To equal both we need to multiply [tex]\frac{9}{10}[/tex] by -1. Thus this option is also not correct.

Therefore , the correct option is option B that is [tex]\frac{-9}{10}[/tex] is the same number as Callie has written to show the change in volume.

Learn more about fractions here :

https://brainly.com/question/17220365

#SPJ2

Which of the following is NOT one of the benefits of owning your own home?
a.
Pride of ownership, privacy, and quality of life
b.
Predictable payments and added stability
c.
Tax deductions for interest costs
d.
Lower maintenance or repair costs compared to renting your home
e.
Homeownership usually serves as protection against inflation

Answers

Answer:

c Tax deductions for interest costs

Step-by-step explanation:

This is because it is the only one that wouldn't make a home owner happy. Most people hate doing taxes therefore it would be a disadvantage not a benefit

Is knowing the coordinates of the vertex of a parabola enough to determine the domain and range? a. No: we would have no information about the domain. c. Yes: if the vertex is at (m,n), then the domain is all reals and the range is y ≤ n. b. No: we would need to know if the vertex is a minimum or a maximum. d. Yes: if the vertex is at (m,n), then the domain is all reals and the range is y ≥ n.

Answers

Answer:

The answer would have to be B

Step-by-step explanation:

explains itself

Answer:it’s B

Step-by-step explanation:

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