Mathematics High School

The surface area of a sphere is π sq.cm. If its radius is
doubled by,how much is its surface area increased ?​

Answers

Answer 1

Answer:

hope it helps..........

The Surface Area Of A Sphere Is Sq.cm. If Its Radius Isdoubled By,how Much Is Its Surface Area Increased

Related Questions

evaluate the expression 3^4 divided by (14 - 5) x 2

PLEASE HELP ASAP!

Answers

Answer:

= 18

Step-by-step explanation:

hope this helped

round off 2409725 to nearest 10​

Answers

Answer:

Hey!

Step-by-step explanation:

Your answer is 2409725.0

Best of luck ♥

Answer:

2409730

Step-by-step explanation:

What is the value of the x ? x + x + x = 56

Answers

x = 56 divided by 3 = 18.6

Hey there!

ORIGINAL EQUATION

x + x + x = 56

CONVERT/COMBINE the LIKE TERMS

1x + 1x + 1x = 56
2x + 1x = 56

NEW EQUATION

3x = 56

DIVIDE 3 to BOTH SIDES

3x/3 = 56/3


SIMPLIFY IT by canceling out 3/3 because it give you 1 & KEEP 56/3 because help solve for the x-value (it also give you the x-value result)


x = 56/3

x = 18.666667

x = 18 2/3


EITHER OF THOSE SHOULD WORK BECAUSE THEY ARE ALL EQUIVALENT TO EACH OTHER

Good luck on your assignment & enjoy your day!



~Amphitrite1040:)


8/5 = ? Pls help this is my math

Answers

Answer:

I think that is it 1.6 if its division

Ms. Pickle is a salesperson at Fluffy Dogs. Each week she earns $560 plus a 6.5% of her sales. How much did she earn last week if her sales were $3800?

Answers

Answer:

I think 247 is your answer!

Step-by-step explanation:

$560 plus a 6.5% of her sales = 596.4 US$

3800 plus a 6.5% of her sales last week = 4047

6.5% of 3800 is 247

Solve the simultaneous equations
x + 5y = 16
x + 3y = 10

Answers

Answer: x=1 and y=3

Step-by-step explanation: hope this help

The solution of the linear equations x + 5y = 16 and x + 3y = 10 will be (1, 3).

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The linear equations are given below.

x + 5y = 16        ...1

x + 3y = 10        ...2

Subtract equation 2 from equation 1, then we have

x + 5y - x - 3y = 16 - 10

2y = 6

y = 3

Then the value of the variable 'x' will be given as,

x + 5(3) = 16

x + 15 = 16

x = 1

The solution of the linear equations x + 5y = 16 and x + 3y = 10 will be (1, 3).

More about the solution of the equation link is given below.

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HELP ITS FOR A TEST

which value for d makes the expressions 3d-4 and 12d÷6 is equivalent
a. 2
b.3
c.4
d.4

Answers

Answer:

"Evaluation" mostly means "simplifying an expression down to a single numerical value". Sometimes you will be given a numerical expression, wher all you have to do is simplify; that is more of an order-of-operations kind of question. In this lesson, I'll concentrate on the "plug and chug" aspect of evaluation: plugging in values for variables, and "chugging" my way to the simplified answer.

Step-by-step explanation:

Answer:

Step-by-step explanation:

evaluate 2r +1 if r=3

Answers

Answer:

7

Step-by-step explanation:

So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)

In triangle ABC, the measure of angle A is 80°. Angle B is congruent to angle C. What is the measure of angle B in degrees? A. ∠ = 100 C. ∠ = 50 B. ∠ = 60 D. ∠ = 80

Answers

Answer:

<B = 50

Step-by-step explanation:

<B = <C = 50


19. Explain the difference
between (-12)2 and - 122.

Help!

Answers

(-12)2 equals 144 -122 equals 22

Spiral Review A chili cook-off has adult tickets a and child tickets C. A group of visitors buys 3 adult tickets and 2 child tickets and pays a total of $26.
Another group buys 5 adult tickets and 3 child tickets and pays $42. Write and solve a system of equations to find the price of each type of ticket.
Enter the correct answers in the boxes.

Equation 1:?

Equation 2:?

adult: $ 6
child: $ 4

I just need help on making equations

Answers

Equation 1 would be: 3a+2C

Equation 2 would be: 5a+3C

The system of equations are solved and the cost of adult ticket and child tickets are $ 6 and $ 4 respectively

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the adult tickets be a

Let the child tickets be c

Group A buys 3 adult tickets and 2 child tickets and pays a total of $26

So , 3a + 2c = 26   be equation (1)

And , Group B buys 5 adult tickets and 3 child tickets and pays $42

So , 5a + 3c = 42   be equation (2)

On simplifying , we get

Multiply equation (1) by 5 and equation (2) by 3 , we get

15a + 10c = 130   be equation (3)

15a + 9c = 126   be equation (4)

Subtracting equation (4) from equation (3) , we get

c = $ 4

Therefore , the cost of child ticket is $ 4

Substituting the value of c in equation (1) , we get

3a + 2 ( 4 ) = 26

3a + 8 = 26

Subtracting 8 on both sides , we get

3a = 18

Divide by 3 on both sides , we get

a = $ 6

Therefore , the cost of adult ticket is $ 6

Hence , the system of equations are solved

To learn more about equations click :

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Determine if 7x – 4 and 2x + 1 are factors of
k (2) = 7x4 – 423

Answers

it’s not the first question = 3(3x-1) and the second one = -395 not equivalent

Item 5
On a scavenger hunt, you find 16 out of 25 objects. Write "16 out of 25" as a fraction, a decimal, and a percent.
Fraction:

Decimal:

Percent:
I need help ASAP

Answers

Answer:

16/25. .64. 64%

Step-by-step explanation:

the fraction should be pretty self explanatory

the decimal you just divide 16 by 25 and for the percentage its out of 100 basically so 64 percent

Please help will brainlist

Answers

Answer:

It should be A

Step-by-step explanation:

(I'm not 100% sure, but two of the sides are congruent so I would just choose 3!)

Find the geometric mean of the numbers. If necessary, give the answer in simplest radical form.

1.5 and 20

The geometric mean is .

Answers

its the square root of 1.5*20 which is root 30

what is the missing number​

Answers

Answer i believe the rule is y= x/2 so n=6

Step-by-step explanation:

An employee at a homemade wooden toy store earned $860 over the past week. The employee needs to pay 14% for Federal Income Tax and 3% for State Income Tax, both on the initial amount he earned. How much will the employee earn after paying both taxes?
$

Answers

Answer:
$713.8

Explanation:
14%of 860 = 120.4

3% of 860 = 25.8

so, subtract the sum of the above 2 values from 860.

860 - (120.4+25.8) = 860-146.2 = 713.8

Hope this helps

Using Percentage, the employee earn after paying Federal income tax and state income tax is $713.8.

What is percentage?

Percentage is a "number or ratio that can be expressed as a fraction of 100".

According to the question,

An employee earned $860 over the past years. The employee needs to pay 14% for income tax and 3% for state income tax

Find an employee needs to pay in Federal income tax:

[tex]\frac{14}{100}[/tex] × 860 = 120.4

Find an employee need to pay in State income tax:

[tex]\frac{3}{100}[/tex] × 860 = 25.8

In order to find an  employee earn after paying both taxes only if we sum the amount of taxes paid by an employee and subtract from earned amount by past years.

860 - (120.4  + 25.8) =713.8

Hence, Using Percentage, the employee earn after paying Federal income tax and state income tax is $713.8.

Learn more about Percentage here

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cant use thisqwdwiwied

Answers

Answer:

ooffffffffffff have a good day/night lol

Answer:

What?? lol

Step-by-step explanation:

what is 8 4/8 - 4 5/6?

Answers

Answer:

3.667

Step-by-step explanation:

I know math (and how to use a calculator)

The answer is going to be 3 2/3

help me plz and thx :)

Answers

Answer:

I am sure it is false. becuase a dependent variable is something you measure and you have to count the eggs.

what is the equation of a line when m = -7 and b = -8?

Answers

Answer:

Step-by-step explanation:

y = mx+b

y = -7x - 8

Answer:

y=-7x-8

Step-by-step explanation:

y=mx+b

m=slope

b=y intercept

answer asap ty.!

Thanks

Answers

Answer:

x=0

Step-by-step explanation:

5-9+3x = -10+6

-4+3x = -4

+4 .       +4 (Both sides)

3x = 0

/3    /3 . (divide both sides by 3)

x=0

Need help ASAP
Which number line correctly shows -3 - -1.5?​

Answers

Answer:

The top one I'm pretty sure.

a rational number is defined as any number that can be written as a fraction with a non zero denomination
true or false?!

Answers

Answer:

True

Step-by-step explanation:

opposite is irrational number

How many solutions does the following. system of equations have? 6x-3y= -9 y=2x+3. one solution, infinitely many solutions or no solution?​

Answers

Answer:

      D    on edg

Step-by-step explanation:

Find mZTUV if mZTUB = 229
and mZBUV = 156°
Solve
B
180°
78°
134°
178°

Answers

I wish I could help you but I’m not smart enough so I hope someone comes around and lends you a hand. Good luck!

Solve the following systems of equations using substitution:
x = 6
y = 2x - 3

Answers

Answer:

y=9

Step-by-step explanation:

2(6)-3=9

The answer is y=9
Y=2x-3
Y=2(6)-3
Y=12-3
Y=9

Which of the following points could be tied to the coordinate graphiasathind point to
create an isoscelestrande Choose all that apply
5
-5
(2 points)
(1,3)
(-2,5
0 (4,-2)

Answers

(-2,5 that is the right answer

60 problemi 3 saatte çözen Erdem
yarım saatte kaç problem çözer?​

Answers

Answer:

20 Problem Çözer

Step-by-step explanation:

60 ile 3'ü bölüyoruz. Ve Cevap 20 Çıkıyor.

Write a linear function for the data in each table using function notation.

Answers

Answer:

A. f(x) = 6.5xB. f(x) = 3x - 2

Step-by-step explanation:

Table A

This is proportional relationship

The function is:

f(x) = 6.5xTable B

The slope is:

(10 - 7)/(4 - 3) = 3

The y-intercept is:

10 - 4*3 = -2

The function is:

f(x) = 3x - 2

Answer:

A. f(x) = 6.5x

B. f(x) = 3x - 2

Step-by-step explanation:

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