Mathematics High School

A remodeling project calls for sanding a chair with a disk sander. The sanding disk used on the sander has a radius of 4 inches. Find the area of the disk. Use 3.14 for \large \pi

Answers

Answer 1

Answer:

the area of the disk is 50.24 inches^2

Step-by-step explanation:

The computation of the area of the disk is as follows:

As we know that

The area of the circle is

= πr^2

= 3.14 × 4^2

= 3.14 × 16

= 50.24 inches ^2

hence, the area of the disk is 50.24 inches^2

Related Questions

8x-2*4 simplified area of the rectangle

Answers

Answer:

multiply both expressions

(8x - 2)(4)

32x - 8

simplify

32x = 8 4 ( 2 2 2 2 2 2)

-8 = 8 -1

8(4x - 1)

hope this helps

Step-by-step explanation:

If you cut away a triangle of area 59cm^2,the remaining area will be 85cm^2.Find the length of the side of the square before it was cut.?

Answers

Answer: side length = 12

Explanation

let x be the original area

Thus x - 59 = 85

=> x = 85 + 59
x = 144

Since we know the original shape is a square and Area of a square = side x side.

Find side length:

A = a^2

But A = 144

144 = a^2
12 = a

So the side of the square b4 it was cut is 12 cm

What is the number of degrees the minute hand of a clock moves between 10:21 and 10:34 pm on the same day?

Answers

.

Step-by-step explanation:

The correct answer is 78

Given the following trapezoid, if QR=8 and UT=12, find the length of the midsegment VS?

Answers

Answer:

The midsegment of a trapezoid is the average of the two bases.

VS=(QR+UT)/2=10

Step-by-step explanation:

I need help solving this problem, please respond as fast as you can.

-7 – 3x = 1x + 4(2 + x)

Answers

Answer:

x = -15/8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

-7 - 3x = 1x + 4(2 + x)

Step 2: Solve for x

Distribute 4:                                                                                                    -7 - 3x = x + 8 + 4xCombine like terms:                                                                                       -7 - 3x = 5x + 8[Addition Property of Equality] Add 3x on both sides:                                -7 = 8x + 8[Subtraction Property of Equality] Subtract 8 on both sides:                      -15 = 8x[Division Property of Equality] Divide 8 on both sides:                               -15/8 = xRewrite/Rearrange:                                                                                        x = -15/8

Pls Answer Fast I will give u 5 Stars

Answers

Answer:

X is 90 degrees

Step-by-step explanation:

I dont know the second part

Which of the following expressions are equivalent to -6-(-2)
Pls I need help

Answers

Answer:

A) -6+2

Step-by-step explanation:

Answer is: A explanation:

Can someone help me please?!

Answers

Answer:

its three good sir

Step-by-step explanation:

Write the slope-intercept form of the equation of the line through the given points.
through: (5,1) and (1, -3)

Answers

Answer:

y = x-4

Step-by-step explanation:

First find the slope

m = ( y2-y1)/(x2-x1)

   = ( -3 -1)/( 1 - 5)

   = -4/-4

   = 1

Then using slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = 1x+b

Substitute one of the points in

1 = 5 +b

1-5 = b

-4 =b

y = x-4

Anyone know what the answer is? I'd appreciate it if someone could help because im stuck

Answers

Answer:

100

Step-by-step explanation:

Isosceles triangle have 2 equal angles. Therefore the second angle in the triangle will also be 25.

Since the sum of angles in a triangle is 180.

180-(25x2) will give you the last angle in one of the triangles.

The other angle is identical so the angle at the top of the other triangle will also be 130.

The sum of angles in a circle is 360.

Therefore, angle x = 360-(130x2)

X= 100

Find each angle measure

Answers

Answer:

1=125

2=55

3=55

4=125

5=125

6=55

7=55

8=125

Step-by-step explanation:

the following table of values ​​is linear or non-linear​

Answers

Non linear !!!!!!!!!!!!!!!!!

Opens right, a=3, vertex: (-5, -2)

Answers

Answer:

What.... what do you need help with

Step-by-step explanation:

Explanation

Find the values of x and y

Answers

Answer:

x = 2

y = 12

Step-by-step explanation:

In triangle ABD, CE is the mid segment.

Therefore, by mid segment theorem:

2(5x - 3) = x + 12

10x - 6 = x + 12

10x - x = 12 + 6

9x = 18

x = 18/9

x = 2

Since, DE = EA

2y - 4 = y + 8

2y - y = 8 + 4

y = 12

7. What two transformations? Someone please help

Answers

Answer:

Rotation and Dilation

Step-by-step explanation:

The graph of a sinusoidal function has a minimum point at (0, 2) and then has a maximum point at (3pi,6).
Write the formula of the function, where is entered in radians.

Answers

Answer:

f(x) = -2cos(1/3 x) + 4

Step-by-step explanation:

time 0:52:40
Simplify
78 x 7² x 74
7° x 75​

Answers

Answer:

282828

75

Step-by-step explanation:

Ratnam hired a car from a car renting agency which charges a flat amount of Rs x for travelling up to 40 kilometres and Rs. y per km for every kilometre travelled thereafter. How much should Ratnam pay the agency for a journey of 50 kilometres in Rs. ?

Answers

Answer:

Rs. X + Rs. 10y

Step-by-step explanation:

Charge for 40 km travel = Rs. x per km

Charge for every additional km traveled = Rs. y

Amount paid for 50 km

Fixed charge for 40km = Rs. X

Additional km = 50 - 40 = 10 kilometer

Total charge :

Rs. X + Rs. 10y

ANSWER ASAP/GIVING HIGH RATING DUE SOON,PLS JUST ANSWER I HAVE AKOT OF WORK DUE IN 10 MINS​

Answers

He would save $1 switching

help me answer question 8a and b, and I’ll give u 10 points lol

Answers

Answer:

Step-by-step explanation:

Find h when v = 20 and r = 3

Putting values in the formula

20 = (3.14)(3)2h

20 = (3.14)(9)h

20 = 28.26h

20/28.26 = h

R when v = 100 and h = 5

100 = (3.14)r2(5)

100/5 = 3.14r2

20 = 3.14r2

20/3.14 = r2

6.36 = r2

Square root on both sides

2.52 = r

Convert y = 3(x - 2)2 - 10 to STANDARD form.
Can someone help me thank you

Answers

Answer:

the ans is 6x−y=22

(hope that helps can p lz have brainlist it will make my day :D hehe)

Step-by-step explanation:

You can give the brainliest now that I’ve responded :)

Can you solve number 1 please.

Answers

slope of f is 5
f(x) = 5x + 2
y= mx + b (linear equation)
m = slope b = y-int

slope of g is 2
Slope formula = change in y
——————
change in x
1. Pick two points
I choose (3,3) and (4,5)
(3,3) —-> (x1,y1)
(4,5) —-> (x2,y2)

y2 - y1 5 - 3
———- = ————- = 2
x2 - x1. 4 - 3

Mr. Jalon owns a book store. He bought 100 books this week. 7 of them were ripped. What percent of this eggs were not ripped?

Answers

Answer:

93 %

Step-by-step explanation:

There are 100 books meaning that the percentage will be out of 100, think of 7 as a percent. 100 - 7 = 93, 93 %

This is probably wrong ;')

What is pi/4 a reference angle for

Answers

is it multiple choice

What is the answer to this question?

Answers

first -10 then divide by 10

slove -4(x-2)=5(3x-8)

Answers

X=2.526 or X=48/19 !

Which ordered pair is a solution of the equation 5x+y=-23?
O (-3,-4)
O (-5,-3)
O (-4,-3)
O (-3,-5)

Answers

5x+y = -23

by substitution

A)
5(-3) + (-4) = -23
-15 - 4 = -23
-19 = -23
Wrong
----------------
B)
5(-5) -3 = -23
-25 - 3 = -23
-28 = -23
Wrong
-----------------
C)
5(-4) - 3 = -23
-20 - 3 = -23
-23 = -23
Right ✅✅✅✅

Answer:

5x-4+-20+ -3=-23

Step-by-step explanation:

5x-3= -15 + -4 = 11

5x-5=-25+-3=22

5x-4=-20+-3=-23

5x-3= -15+ -5= -20

help with rounding off please !:(

Answers

I’m a thief who stole your points lol
The answers are given are below:

Answer:

(a) 3800

(b) 7000

(c) Does unit mean ones place? 31

(d) 82.8

(e) 1000

(f) 0.48

Step-by-step explanation:

Which rule explains why these triangles are congruent?

Answers

Answer:

ASA prove it's congruent

as 2 angles are equal and a side between of them is same for both triangles.

-11 2/3 x (-4 1/5) HELPPPP!!!

Answers

Answer:

49

Step-by-step explanation:

(−11 2/3)(−4 1/5)

=  (-35/3) (-21/5)

= 49

Hope I helped!!

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